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Re: After the storm, hopefully [message #419059 is a reply to message #419047] Fri, 10 February 2023 06:49 Go to previous messageGo to next message
Ahem A Rivet's Shot is currently offline  Ahem A Rivet's Shot
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Registered: January 2012
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Senior Member
On Thu, 09 Feb 2023 11:30:36 -0500
Dan Espen <dan1espen@gmail.com> wrote:

> Do a search for "blue leds are impossible". All those physicists
> managed to not leave any trace of their proclamations of impossibility.

Nobody said it was impossible - it was expected to be difficult,
perhaps not possible and certainly low efficiency. Google the history of
blue LEDs.

The first blue LEDs were made in 1972 at RCA in GaN - they were
difficult to make and very low efficiency - useless for lighting and pretty
much anything else, later SiC based blue LEDs entered production they were
easier to make but also had extremely low efficiency and there it stood
until the early 1990s. We had blue LEDs but they were pretty much useless
and that was pretty much as expected.

The Nobel winning surprise was *high efficiency* blue LEDs, their
first ones were nearly 100 times more efficient than SiC blue LEDs! It's
the efficiency that made LED lighting a winner, it was possible in the
1980s but the efficiency would make you pine for incandescent lighting.
That LED lighting would turn out to be the most efficient yet developed
(currently running well over 200 lumens per watt in the best bins) was a
big surprise.

When the high efficiency LEDs first entered production they were
less efficient (but longer lived, better colour[1] and more robust) than
CFLs, it took some time for the efficiency to surpass CFLs with no
certainty that it would until it did. They started to displace CFLs when
they were still a little less efficient than CFLs.

If today I say that I expect one day we'll be able to store more
than a kilowatt hour per kilogram and that is achieved it will be nothing
more than a lucky guess because I have no idea how or if such a thing is
possible.

[1] Until you considered the CRI which was *awful*. Modern LEDs often have
a really good CRI - 90 or more but the early ones did not.

--
Steve O'Hara-Smith
Odds and Ends at http://www.sohara.org/
Re: After the storm, hopefully [message #419060 is a reply to message #419050] Fri, 10 February 2023 09:38 Go to previous messageGo to next message
Anonymous
Karma:
Originally posted by: Kurt Weiske

To: Joe Pfeiffer
-=> Joe Pfeiffer wrote to alt.folklore.computers <=-

> I've always loved Toyotas. You could take the majority of the car apart
> with a philips head screwdriver, flat head screwdriver, and a 10/13mm
> box wrench.

JP> How long ago was that? My 1975 Corolla was wonderful for exactly that
JP> reason (did my first head gasket on that car); my 1990 pickup seemed to
JP> need a new oddball socket size for every job.

Fairly recently - a 2002 Camry SE and a 2014 Plug-in Prius.

a 1975 Corolla must have been nice to work on; I watched a video of
someone working on a similar era 1st gen Celica, and the engine
compartment Just Made Sense. Everything where it's supposed to be, very
little that's not, and room to work.

Didn't catalytic converters come out in 1976?




.... HACK THE PLANET!
--- MultiMail/Win v0.52
--- Synchronet 3.19c-Win32 NewsLink 1.113
* realitycheckBBS - Aptos, CA - telnet://realitycheckbbs.org
Re: After the storm, hopefully [message #419061 is a reply to message #419052] Fri, 10 February 2023 11:54 Go to previous messageGo to next message
Joe Pfeiffer is currently offline  Joe Pfeiffer
Messages: 764
Registered: January 2012
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Charlie Gibbs <cgibbs@kltpzyxm.invalid> writes:

> On 2023-02-09, Dan Espen <dan1espen@gmail.com> wrote:
>
>> Ahem A Rivet's Shot <steveo@eircom.net> writes:
>>
>>> Efficient LED lighting was considered so unlikely by those in the
>>> know that the team who pulled it off got a Nobel for their efforts!
>>> *Nobody* could have seen it coming.
>>
>> Nobody?
>>
>> I certainly saw it coming.
>> I remember when we had red only, then green, and a fairly long time
>> until blue.
>
> And at first the blue LEDs were much more expensive.
> I remember going to a local electronics supplier,
> where I found red and green LEDs for 25 cents each.
> The corresponding blue ones were $6.00.
>
> And then they became commonplace, and like any novelty were
> horribly overused. Obnoxious bright blue lights were everywhere.
> I remember running a sound board in a theatre production -
> the pilot light was a blue LED that was so bright that I
> couldn't see the rest of the board; I had to cover it with
> three layers of masking tape to make things manageable.

I've got a nice magnetic power cord with matching USB C connector for my
tablet (since something like 90% of all the phones and tablets I've
retired over the years have had to be retired when their power connector
failed). Bright damn blue LED. It's like having a nightlight.

> "If it can be done, it should be done." Feh.
Re: After the storm, hopefully [message #419062 is a reply to message #419054] Fri, 10 February 2023 16:14 Go to previous messageGo to next message
D.J. is currently offline  D.J.
Messages: 821
Registered: January 2012
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Senior Member
On Thu, 9 Feb 2023 22:51:00 -0000 (UTC), Alfred Falk
<aefalk@telus.net> wrote:
> D.J. <chucktheouch@gmnol.com> wrote in
> news:qg78uh1ms5jr3gdjnjuvjntkroo91jbe55@4ax.com:
>
>> On 8 Feb 2023 21:22:50 GMT, greymaus <greymaus@gmail.com> wrote:
>>> On 2023-02-08, Carlos E.R. <robin_listas@es.invalid> wrote:
>>>> On 2023-02-08 19:37, D.J. wrote:
>>>> > On Wed, 8 Feb 2023 12:19:21 +0100, "Carlos E.R."
>>>> >>>
>>>> >>> Turns out they aren't impossible.
>>>> >>
>>>> >> They were impossible at the time of the asking. Engineers knew it
>>>> >> was just a matter of time.
>>>> >
>>>> > Then they should have said so, and not let someone else pretend
>>>> > otherwise.
>>>>
>>>> The newsboys asked the wrong people.
>>>>
>>>>
>>>
>>> Couple of things since I last irritated y'all.
>>>
>>> Was there any connection between the transistor and what a lot of
>>> people used to use for the early radio's, the cat's whisker.
>>
>> Galena crystal is the cat's whisker. The leads on the crystal looked
>> like cat's whiskers.
>
> Technical nit:
> the cat's whisker was the stiff little wire that poked the galena crystal,
> forming the point contact.

Yeah, I tried to say that...
--
Jim
Re: After the storm, hopefully [message #419064 is a reply to message #419061] Sat, 11 February 2023 01:44 Go to previous messageGo to next message
Ahem A Rivet's Shot is currently offline  Ahem A Rivet's Shot
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On Fri, 10 Feb 2023 09:54:52 -0700
Joe Pfeiffer <pfeiffer@cs.nmsu.edu> wrote:

> Bright damn blue LED. It's like having a nightlight.

I have made extensive use of black insulating tape over such
pointless power lights - some of the worst offenders got copper tape.

--
Steve O'Hara-Smith
Odds and Ends at http://www.sohara.org/
Re: After the storm, hopefully [message #419065 is a reply to message #419064] Sat, 11 February 2023 05:32 Go to previous messageGo to next message
Anonymous
Karma:
Originally posted by: Carlos E.R.

On 2023-02-11 07:44, Ahem A Rivet's Shot wrote:
> On Fri, 10 Feb 2023 09:54:52 -0700
> Joe Pfeiffer <pfeiffer@cs.nmsu.edu> wrote:
>
>> Bright damn blue LED. It's like having a nightlight.
>
> I have made extensive use of black insulating tape over such
> pointless power lights - some of the worst offenders got copper tape.

Imagine driving behind a police car (new) with their blue lights fully
on. It hurts.

--
Cheers, Carlos.
Re: After the storm, hopefully [message #419066 is a reply to message #419065] Sat, 11 February 2023 13:07 Go to previous messageGo to next message
Charlie Gibbs is currently offline  Charlie Gibbs
Messages: 5313
Registered: January 2012
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Senior Member
On 2023-02-11, Carlos E.R. <robin_listas@es.invalid> wrote:

> On 2023-02-11 07:44, Ahem A Rivet's Shot wrote:
>
>> On Fri, 10 Feb 2023 09:54:52 -0700
>> Joe Pfeiffer <pfeiffer@cs.nmsu.edu> wrote:
>>
>>> Bright damn blue LED. It's like having a nightlight.
>>
>> I have made extensive use of black insulating tape over such
>> pointless power lights - some of the worst offenders got copper tape.
>
> Imagine driving behind a police car (new) with their blue lights fully
> on. It hurts.

Driving in front of any car with the new crop of high-intensity
headlights is almost as bad, though. I get my revenge by adjusting
my side mirrors to direct their own light back into their eyes.
(It helps discourage tailgating, too.)

--
/~\ Charlie Gibbs | Microsoft is a dictatorship.
\ / <cgibbs@kltpzyxm.invalid> | Apple is a cult.
X I'm really at ac.dekanfrus | Linux is anarchy.
/ \ if you read it the right way. | Pick your poison.
Re: After the storm, hopefully [message #419067 is a reply to message #419066] Sat, 11 February 2023 13:36 Go to previous messageGo to next message
Ahem A Rivet's Shot is currently offline  Ahem A Rivet's Shot
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On Sat, 11 Feb 2023 18:07:55 GMT
Charlie Gibbs <cgibbs@kltpzyxm.invalid> wrote:

> Driving in front of any car with the new crop of high-intensity
> headlights is almost as bad, though.

Having mandatory inspections where the alignment of the headlights
is checked helps a lot with that, but even so I wish they'd turn down the
colour temperature by at least 2000 degrees, the overly blue light is hard
on the eyes.

--
Steve O'Hara-Smith
Odds and Ends at http://www.sohara.org/
Re: After the storm, hopefully [message #419068 is a reply to message #419067] Sat, 11 February 2023 15:34 Go to previous messageGo to next message
Charlie Gibbs is currently offline  Charlie Gibbs
Messages: 5313
Registered: January 2012
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On 2023-02-11, Ahem A Rivet's Shot <steveo@eircom.net> wrote:

> On Sat, 11 Feb 2023 18:07:55 GMT
> Charlie Gibbs <cgibbs@kltpzyxm.invalid> wrote:
>
>> Driving in front of any car with the new crop of high-intensity
>> headlights is almost as bad, though.
>
> Having mandatory inspections where the alignment of the headlights
> is checked helps a lot with that, but even so I wish they'd turn down the
> colour temperature by at least 2000 degrees, the overly blue light is hard
> on the eyes.

Mandatory inspections ceased here in B.C. in 1982, when the provincial
government closed down all vehicle inspection stations as a cost-saving
measure. When the stations were active, it was taken for granted that
you'd flunk due to headlights, and there was a service station around
the corner from each inspection station that could do fast, accurate
headlight adjustment.

Recently I needed a new headlamp for my car. The supplier had a little
machine on which you could press buttons to navigate through a series
of screens to find your make and model and a list of headlamps which
were appropriate replacements. I noticed that a number of them contained
a note saying "Valid only in Canada and Mexico." Presumably the U.S. has
more stringent requirements, and some lamps are just too bright. Indeed,
on a road trip to Utah this summer, I noticed while driving at night that
other cars' headlights weren't nearly as obnoxious as they are here at
home - at least until we were coming back up through Washington state,
where the number of overly-bright lights increased, probably due to an
increasing number of Canadian tourists on the road.

I agree with you about the colour temperature, though. 4000K max.

--
/~\ Charlie Gibbs | Microsoft is a dictatorship.
\ / <cgibbs@kltpzyxm.invalid> | Apple is a cult.
X I'm really at ac.dekanfrus | Linux is anarchy.
/ \ if you read it the right way. | Pick your poison.
Re: After the storm, hopefully [message #419069 is a reply to message #419068] Sat, 11 February 2023 16:22 Go to previous messageGo to next message
Ahem A Rivet's Shot is currently offline  Ahem A Rivet's Shot
Messages: 4843
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On Sat, 11 Feb 2023 20:34:08 GMT
Charlie Gibbs <cgibbs@kltpzyxm.invalid> wrote:

> Mandatory inspections ceased here in B.C. in 1982, when the provincial

It didn't start in Ireland until eighteen years after it stopped in
B.C.

= I noticed that a number of them contained
> a note saying "Valid only in Canada and Mexico." Presumably the U.S. has
> more stringent requirements, and some lamps are just too bright.

It might not just be brightness, I don't know about the US but in
Ireland and the UK headlights have to be focused, there are distinct focus
patterns for dipped and full beams. One of the reasons that early LED
replacement bulbs were illegal here was that they emitted light in a
different place to the halogen bulbs the headlights were designed for and
thus produced the wrong beam pattern.

--
Steve O'Hara-Smith
Odds and Ends at http://www.sohara.org/
Re: After the storm, hopefully [message #419070 is a reply to message #419069] Sat, 11 February 2023 17:36 Go to previous messageGo to next message
Charlie Gibbs is currently offline  Charlie Gibbs
Messages: 5313
Registered: January 2012
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On 2023-02-11, Ahem A Rivet's Shot <steveo@eircom.net> wrote:

> On Sat, 11 Feb 2023 20:34:08 GMT
> Charlie Gibbs <cgibbs@kltpzyxm.invalid> wrote:
>
>> Mandatory inspections ceased here in B.C. in 1982, when the provincial
>
> It didn't start in Ireland until eighteen years after it stopped in
> B.C.
>
> = I noticed that a number of them contained
>> a note saying "Valid only in Canada and Mexico." Presumably the U.S. has
>> more stringent requirements, and some lamps are just too bright.
>
> It might not just be brightness, I don't know about the US but in
> Ireland and the UK headlights have to be focused, there are distinct focus
> patterns for dipped and full beams. One of the reasons that early LED
> replacement bulbs were illegal here was that they emitted light in a
> different place to the halogen bulbs the headlights were designed for and
> thus produced the wrong beam pattern.

I've noticed that a lot of the brightest headlights over here have
a very sharp cutoff at a given angle, at which the intensity of
the so-called low beam goes from merely objectionable to downright
hazardous. This angle is carefully set to be as high as possible
while still being (presumably) legal. If you're driving a monster
pickup truck (of the kind you thankfully have few of over there),
you're high enough to be out of the most intense part of someone
else's beam - while your own will hit everyone in smaller vehicles.
If you're in something like my 2007 Honda Civic, you're out of luck.
Mind you, if an oncoming vehicle is cresting a hill - or even hits
a small bump - you're going to get a full-power flash no matter what.

Automobile ads here really play up the bright headlights on the cars
they're selling. I guess it's considered sexy to blind oncoming traffic.

--
/~\ Charlie Gibbs | Microsoft is a dictatorship.
\ / <cgibbs@kltpzyxm.invalid> | Apple is a cult.
X I'm really at ac.dekanfrus | Linux is anarchy.
/ \ if you read it the right way. | Pick your poison.
Re: After the storm, hopefully [message #419071 is a reply to message #419054] Sat, 11 February 2023 19:58 Go to previous messageGo to next message
Peter Flass is currently offline  Peter Flass
Messages: 8375
Registered: December 2011
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Senior Member
Alfred Falk <aefalk@telus.net> wrote:
> D.J. <chucktheouch@gmnol.com> wrote in
> news:qg78uh1ms5jr3gdjnjuvjntkroo91jbe55@4ax.com:
>
>> On 8 Feb 2023 21:22:50 GMT, greymaus <greymaus@gmail.com> wrote:
>>> On 2023-02-08, Carlos E.R. <robin_listas@es.invalid> wrote:
>>>> On 2023-02-08 19:37, D.J. wrote:
>>>> > On Wed, 8 Feb 2023 12:19:21 +0100, "Carlos E.R."
>>>> >>>
>>>> >>> Turns out they aren't impossible.
>>>> >>
>>>> >> They were impossible at the time of the asking. Engineers knew it
>>>> >> was just a matter of time.
>>>> >
>>>> > Then they should have said so, and not let someone else pretend
>>>> > otherwise.
>>>>
>>>> The newsboys asked the wrong people.
>>>>
>>>>
>>>
>>> Couple of things since I last irritated y'all.
>>>
>>> Was there any connection between the transistor and what a lot of
>>> people used to use for the early radio's, the cat's whisker.
>>
>> Galena crystal is the cat's whisker. The leads on the crystal looked
>> like cat's whiskers.
>
> Technical nit:
> the cat's whisker was the stiff little wire that poked the galena crystal,
> forming the point contact.
>
>>> Newton, I think, wrote that "we are standing on the shoulders of
>>> giants", meaning that all that he did was founded on previous research.
>>>
>>> The breakthrough of phones. In being awarded the patent, Bell had to
>>> refer to the time difference between NY and Chicago. Several people
>>> were claiming that at around the same time.
>>>
>>> Teachers are telling me that children are now hard to teach, because
>>> they are distracted with their mobile phones.
>>
>> Relatives I have talked to, all cell phone must be off and put up,
>> none in class.
>
>

I built one of those from a kit, as a lad. My Dad told me he had built one
when radio was novelty.

--
Pete
Re: After the storm, hopefully [message #419072 is a reply to message #419068] Sun, 12 February 2023 00:02 Go to previous messageGo to next message
Anonymous
Karma:
Originally posted by: Dave Yeo

Charlie Gibbs wrote:
> Recently I needed a new headlamp for my car. The supplier had a little
> machine on which you could press buttons to navigate through a series
> of screens to find your make and model and a list of headlamps which
> were appropriate replacements. I noticed that a number of them contained
> a note saying "Valid only in Canada and Mexico." Presumably the U.S. has
> more stringent requirements, and some lamps are just too bright. Indeed,
> on a road trip to Utah this summer, I noticed while driving at night that
> other cars' headlights weren't nearly as obnoxious as they are here at
> home - at least until we were coming back up through Washington state,
> where the number of overly-bright lights increased, probably due to an
> increasing number of Canadian tourists on the road.

My knowledge is likely way out of date, back in the day of sealed beams,
there were basically 2 types, DOT and ECE (European) IIRC. The DOT had
the 3 (or 4?) nibs for aiming. The European types had a different light
pattern that was much better in the rain and were illegal in most of
America. Washington (and Oregon?) was an exception due to the rain.
I remember getting some Bosch headlights for my '72 Datsun, they were
way better in the rain.
Dave
Re: After the storm, hopefully [message #419073 is a reply to message #419069] Sun, 12 February 2023 02:50 Go to previous messageGo to next message
Anonymous
Karma:
Originally posted by: greymaus

On 2023-02-11, Ahem A Rivet's Shot <steveo@eircom.net> wrote:
> On Sat, 11 Feb 2023 20:34:08 GMT
> Charlie Gibbs <cgibbs@kltpzyxm.invalid> wrote:
>
>> Mandatory inspections ceased here in B.C. in 1982, when the provincial
>
> It didn't start in Ireland until eighteen years after it stopped in
> B.C.
>

My nephew is a vehicle inspector. During a still ongoing family argument, it
was noticed that he is harder (in inspections) on one side than the the other.

OTOH, I have picked up a daughter from the test center twice when they would
not, rightly, let her drive the car home.

Remember penney from the big bang theory


--
greymausg@mail.com
where is our money gone, Dude?
Re: After the storm, hopefully [message #419074 is a reply to message #419071] Sun, 12 February 2023 04:24 Go to previous messageGo to next message
Harry Vaderchi is currently offline  Harry Vaderchi
Messages: 719
Registered: July 2012
Karma: 0
Senior Member
On Sat, 11 Feb 2023 17:58:39 -0700
Peter Flass <peter_flass@yahoo.com> wrote:

> Alfred Falk <aefalk@telus.net> wrote:
>> D.J. <chucktheouch@gmnol.com> wrote in
>> news:qg78uh1ms5jr3gdjnjuvjntkroo91jbe55@4ax.com:
>>
>>> On 8 Feb 2023 21:22:50 GMT, greymaus <greymaus@gmail.com> wrote:
>>>> On 2023-02-08, Carlos E.R. <robin_listas@es.invalid> wrote:
>>>> > On 2023-02-08 19:37, D.J. wrote:
>>>> >> On Wed, 8 Feb 2023 12:19:21 +0100, "Carlos E.R."
>>>> >>>>
>>>> >>>> Turns out they aren't impossible.
>>>> >>>
>>>> >>> They were impossible at the time of the asking. Engineers knew it
>>>> >>> was just a matter of time.
>>>> >>
>>>> >> Then they should have said so, and not let someone else pretend
>>>> >> otherwise.
>>>> >
>>>> > The newsboys asked the wrong people.
>>>> >
>>>> >
>>>>
>>>> Couple of things since I last irritated y'all.
>>>>
>>>> Was there any connection between the transistor and what a lot of
>>>> people used to use for the early radio's, the cat's whisker.
>>>
>>> Galena crystal is the cat's whisker. The leads on the crystal looked
>>> like cat's whiskers.
>>
>> Technical nit:
>> the cat's whisker was the stiff little wire that poked the galena crystal,
>> forming the point contact.
>>
>>>> Newton, I think, wrote that "we are standing on the shoulders of
>>>> giants", meaning that all that he did was founded on previous research.
>>>>
>>>> The breakthrough of phones. In being awarded the patent, Bell had to
>>>> refer to the time difference between NY and Chicago. Several people
>>>> were claiming that at around the same time.
>>>>
>>>> Teachers are telling me that children are now hard to teach, because
>>>> they are distracted with their mobile phones.
>>>
>>> Relatives I have talked to, all cell phone must be off and put up,
>>> none in class.
>>
>>
>
> I built one of those from a kit, as a lad. My Dad told me he had built one
> when radio was novelty.
>

Whoa! build yer own mobile!

Ah you mean a cat's whisker radio


--
Bah, and indeed Humbug.
Re: After the storm, hopefully [message #419075 is a reply to message #419066] Sun, 12 February 2023 07:35 Go to previous messageGo to next message
Anonymous
Karma:
Originally posted by: Carlos E.R.

On 2023-02-11 19:07, Charlie Gibbs wrote:
> On 2023-02-11, Carlos E.R. <robin_listas@es.invalid> wrote:
>
>> On 2023-02-11 07:44, Ahem A Rivet's Shot wrote:
>>
>>> On Fri, 10 Feb 2023 09:54:52 -0700
>>> Joe Pfeiffer <pfeiffer@cs.nmsu.edu> wrote:
>>>
>>>> Bright damn blue LED. It's like having a nightlight.
>>>
>>> I have made extensive use of black insulating tape over such
>>> pointless power lights - some of the worst offenders got copper tape.
>>
>> Imagine driving behind a police car (new) with their blue lights fully
>> on. It hurts.
>
> Driving in front of any car with the new crop of high-intensity
> headlights is almost as bad, though. I get my revenge by adjusting
> my side mirrors to direct their own light back into their eyes.
> (It helps discourage tailgating, too.)

I meant the roof blue lights, as seen from behind, or from any other
direction. They are very intense here, probably from LEDs.

https://images.app.goo.gl/b7uF2fmaoBQ4aWiA8


--
Cheers, Carlos.
Re: After the storm, hopefully [message #419076 is a reply to message #419070] Sun, 12 February 2023 11:45 Go to previous messageGo to next message
Joe Pfeiffer is currently offline  Joe Pfeiffer
Messages: 764
Registered: January 2012
Karma: 0
Senior Member
Charlie Gibbs <cgibbs@kltpzyxm.invalid> writes:
>
> I've noticed that a lot of the brightest headlights over here have
> a very sharp cutoff at a given angle, at which the intensity of
> the so-called low beam goes from merely objectionable to downright
> hazardous. This angle is carefully set to be as high as possible
> while still being (presumably) legal. If you're driving a monster
> pickup truck (of the kind you thankfully have few of over there),
> you're high enough to be out of the most intense part of someone
> else's beam - while your own will hit everyone in smaller vehicles.
> If you're in something like my 2007 Honda Civic, you're out of luck.
> Mind you, if an oncoming vehicle is cresting a hill - or even hits
> a small bump - you're going to get a full-power flash no matter what.
>
> Automobile ads here really play up the bright headlights on the cars
> they're selling. I guess it's considered sexy to blind oncoming traffic.

My wife's 2015 Chrysler 200 has an extremely sharp cutoff. At night,
with low beams, it's very hard to read street signs.
Re: After the storm, hopefully [message #419077 is a reply to message #419075] Sun, 12 February 2023 11:48 Go to previous messageGo to next message
Joe Pfeiffer is currently offline  Joe Pfeiffer
Messages: 764
Registered: January 2012
Karma: 0
Senior Member
"Carlos E.R." <robin_listas@es.invalid> writes:

> On 2023-02-11 19:07, Charlie Gibbs wrote:
>> On 2023-02-11, Carlos E.R. <robin_listas@es.invalid> wrote:
>>
>>> On 2023-02-11 07:44, Ahem A Rivet's Shot wrote:
>>>
>>>> On Fri, 10 Feb 2023 09:54:52 -0700
>>>> Joe Pfeiffer <pfeiffer@cs.nmsu.edu> wrote:
>>>>
>>>> > Bright damn blue LED. It's like having a nightlight.
>>>>
>>>> I have made extensive use of black insulating tape over such
>>>> pointless power lights - some of the worst offenders got copper tape.
>>>
>>> Imagine driving behind a police car (new) with their blue lights fully
>>> on. It hurts.
>> Driving in front of any car with the new crop of high-intensity
>> headlights is almost as bad, though. I get my revenge by adjusting
>> my side mirrors to direct their own light back into their eyes.
>> (It helps discourage tailgating, too.)
>
> I meant the roof blue lights, as seen from behind, or from any other
> direction. They are very intense here, probably from LEDs.
>
> https://images.app.goo.gl/b7uF2fmaoBQ4aWiA8

Worse than those are that they leave their spotlight on, illuminating
the vehicle they pulled over, when on the side of the road (in fairness,
this is for their own safety). When approaching from the other
direction it's worse than driving into somebody's high beams.
Re: After the storm, hopefully [message #419078 is a reply to message #419064] Sat, 11 February 2023 12:56 Go to previous messageGo to next message
Anonymous
Karma:
Originally posted by: Kurt Weiske

To: Ahem A Rivet's Shot
-=> Ahem A Rivet's Shot wrote to alt.folklore.computers <=-

AAS> I have made extensive use of black insulating tape over such
AAS> pointless power lights - some of the worst offenders got copper tape.

I bought a role of gaffer tape years ago to block light leaks in cheap film
cameras. It does a good job of blocking LEDs on routers and access
points, and doesn't leave residue.

kurt weiske | kweiske at realitycheckbbs dot org
| http://realitycheckbbs.org
| 1:218/700@fidonet
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Re: After the storm, hopefully [message #419079 is a reply to message #419066] Sun, 12 February 2023 13:31 Go to previous messageGo to next message
Anonymous
Karma:
Originally posted by: Kurt Weiske

To: Charlie Gibbs
-=> Charlie Gibbs wrote to alt.folklore.computers <=-

CG> Driving in front of any car with the new crop of high-intensity
CG> headlights is almost as bad, though. I get my revenge by adjusting
CG> my side mirrors to direct their own light back into their eyes.
CG> (It helps discourage tailgating, too.)

Highway 17 (the highway connecting Santa Cruz and the central coast to
Silicon Valley is bad enough, being a 2-lane highway with a low divider.
At night, nowadays, with all of the oncoming HID and high-intensity
headlights, is very distracting.

And, what's the deal with trucks driving with high beams on, 24/7?
There's a big BLUE indicator light on the dash, so they must know
they're doing it.

kurt weiske | kweiske at realitycheckbbs dot org
| http://realitycheckbbs.org
| 1:218/700@fidonet
| mastodon https://tilde.zone/@poindexter





.... The answers will be found in the logs.
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Re: After the storm, hopefully [message #419080 is a reply to message #419077] Sun, 12 February 2023 14:35 Go to previous messageGo to next message
Anonymous
Karma:
Originally posted by: Carlos E.R.

On 2023-02-12 17:48, Joe Pfeiffer wrote:
> "Carlos E.R." <robin_listas@es.invalid> writes:
>
>> On 2023-02-11 19:07, Charlie Gibbs wrote:
>>> On 2023-02-11, Carlos E.R. <robin_listas@es.invalid> wrote:
>>>
>>>> On 2023-02-11 07:44, Ahem A Rivet's Shot wrote:
>>>>
>>>> > On Fri, 10 Feb 2023 09:54:52 -0700
>>>> > Joe Pfeiffer <pfeiffer@cs.nmsu.edu> wrote:
>>>> >
>>>> >> Bright damn blue LED. It's like having a nightlight.
>>>> >
>>>> > I have made extensive use of black insulating tape over such
>>>> > pointless power lights - some of the worst offenders got copper tape.
>>>>
>>>> Imagine driving behind a police car (new) with their blue lights fully
>>>> on. It hurts.
>>> Driving in front of any car with the new crop of high-intensity
>>> headlights is almost as bad, though. I get my revenge by adjusting
>>> my side mirrors to direct their own light back into their eyes.
>>> (It helps discourage tailgating, too.)
>>
>> I meant the roof blue lights, as seen from behind, or from any other
>> direction. They are very intense here, probably from LEDs.
>>
>> https://images.app.goo.gl/b7uF2fmaoBQ4aWiA8
>
> Worse than those are that they leave their spotlight on, illuminating
> the vehicle they pulled over, when on the side of the road (in fairness,
> this is for their own safety). When approaching from the other
> direction it's worse than driving into somebody's high beams.

I don't chance on those normally, and that beam is understandably
strong. What I find often, though, is that they drive normally on the
roads and streets with those blue lights on. Not on a hurry, they just
drive all the time with them on.

--
Cheers, Carlos.
Re: After the storm, hopefully [message #419082 is a reply to message #419015] Sun, 12 February 2023 16:51 Go to previous messageGo to next message
Anonymous
Karma:
Originally posted by: Vir Campestris

On 08/02/2023 16:00, Scott Lurndal wrote:
> If you look a bit deeper into the fuel issue, you'll find that
> "run out in decades" applies to the current fleet of 439 reactors.

I actually meant the fossil fuel will run out in decades.

There's loads of U328 we can turn into Plutonium if we want. And loads
more Uranium in seawater. Getting it out might be hard and expensive,
but I'm not about to say impossible.

Andy
Re: After the storm, hopefully [message #419083 is a reply to message #419046] Sun, 12 February 2023 16:57 Go to previous messageGo to next message
Anonymous
Karma:
Originally posted by: Vir Campestris

On 09/02/2023 15:20, Kurt Weiske wrote:
> Plug-in hybrids are nice. You don't get the simplicity of losing the
> internal combustion engine, but you can toodle around on your in-town
> errands only using EV and have the gas engine for longer trips.
>
> I have friends who take trips with EVs, and planning your trip around
> stopping to charge seems like a pain. It'll be the norm someday, I'm
> sure.

My son does a lot of business miles, and his comment is that most of
these plug-in hybrids have tiny fuel tanks and small batteries. Neither
range is good.

Andy
Re: After the storm, hopefully [message #419084 is a reply to message #419083] Sun, 12 February 2023 17:50 Go to previous messageGo to next message
GreyMaus[1] is currently offline  GreyMaus[1]
Messages: 1140
Registered: February 2013
Karma: 0
Senior Member
On 2023-02-12, Vir Campestris <vir.campestris@invalid.invalid> wrote:
> On 09/02/2023 15:20, Kurt Weiske wrote:
>> Plug-in hybrids are nice. You don't get the simplicity of losing the
>> internal combustion engine, but you can toodle around on your in-town
>> errands only using EV and have the gas engine for longer trips.
>>
>> I have friends who take trips with EVs, and planning your trip around
>> stopping to charge seems like a pain. It'll be the norm someday, I'm
>> sure.
>
> My son does a lot of business miles, and his comment is that most of
> these plug-in hybrids have tiny fuel tanks and small batteries. Neither
> range is good.
>
> Andy
>
Most hybrid's I have heard of have petrol, not deisel, engines. Utterley useless for
pulling a load.


--
greymausg@mail.com
where is our money gone, Dude?
Re: After the storm, hopefully [message #419085 is a reply to message #419084] Sun, 12 February 2023 18:12 Go to previous messageGo to next message
Anonymous
Karma:
Originally posted by: Carlos E.R.

On 2023-02-12 23:50, maus wrote:
> On 2023-02-12, Vir Campestris <vir.campestris@invalid.invalid> wrote:
>> On 09/02/2023 15:20, Kurt Weiske wrote:
>>> Plug-in hybrids are nice. You don't get the simplicity of losing the
>>> internal combustion engine, but you can toodle around on your in-town
>>> errands only using EV and have the gas engine for longer trips.
>>>
>>> I have friends who take trips with EVs, and planning your trip around
>>> stopping to charge seems like a pain. It'll be the norm someday, I'm
>>> sure.
>>
>> My son does a lot of business miles, and his comment is that most of
>> these plug-in hybrids have tiny fuel tanks and small batteries. Neither
>> range is good.
>>
>> Andy
>>
> Most hybrid's I have heard of have petrol, not deisel, engines. Utterley useless for
> pulling a load.
>
>

Here you have a bunch of diesel hybrids, ECO label 2022. Spanish.

< https://neomotor.epe.es/coches/todos-los-coches-diesel-hibri dos-con-etiqueta-eco-en-2022-HJ865283>

--
Cheers, Carlos.
Re: After the storm, hopefully [message #419087 is a reply to message #419082] Sun, 12 February 2023 19:02 Go to previous messageGo to next message
scott is currently offline  scott
Messages: 4237
Registered: February 2012
Karma: 0
Senior Member
Vir Campestris <vir.campestris@invalid.invalid> writes:
> On 08/02/2023 16:00, Scott Lurndal wrote:
>> If you look a bit deeper into the fuel issue, you'll find that
>> "run out in decades" applies to the current fleet of 439 reactors.
>
> I actually meant the fossil fuel will run out in decades.
>
> There's loads of U328 we can turn into Plutonium if we want. And loads
> more Uranium in seawater. Getting it out might be hard and expensive,
> but I'm not about to say impossible.

Right now, the EROI for U from seawater is significantly less
than unity. Not a viable option.

https://www.scientificamerican.com/article/how-long-will-glo bal-uranium-deposits-last/

That's 200 years worth for the existing fleet of 439 reactors.

Now multiply that by the tens of thousands of reactors that
need to be built to replace the fossil fuel based energy.
Re: After the storm, hopefully [message #419088 is a reply to message #419085] Mon, 13 February 2023 06:44 Go to previous messageGo to next message
Andy Burns is currently offline  Andy Burns
Messages: 416
Registered: June 2012
Karma: 0
Senior Member
Carlos E.R. wrote:

> Here you have a bunch of diesel hybrids, ECO label 2022. Spanish.
> < https://neomotor.epe.es/coches/todos-los-coches-diesel-hibri dos-con-etiqueta-eco-en-2022-HJ865283>

I must admit, I didn't try to read far down that list, but the Audi
diesels are what the UK classes as "mild" hybrids, i.e. they have a
combined starter/alternator and a larger 12V (or for larger engines 48V)
battery ...

But they don't actully count as real hybrids as far as low emission
zones are concerned, they're mostly designed for lower taxation due to
them producing theoretically lower CO2 output.
Re: After the storm, hopefully [message #419089 is a reply to message #419088] Mon, 13 February 2023 11:49 Go to previous messageGo to next message
GreyMaus[1] is currently offline  GreyMaus[1]
Messages: 1140
Registered: February 2013
Karma: 0
Senior Member
On 2023-02-13, Andy Burns <usenet@andyburns.uk> wrote:
> Carlos E.R. wrote:
>
>> Here you have a bunch of diesel hybrids, ECO label 2022. Spanish.
>> < https://neomotor.epe.es/coches/todos-los-coches-diesel-hibri dos-con-etiqueta-eco-en-2022-HJ865283>
>
> I must admit, I didn't try to read far down that list, but the Audi
> diesels are what the UK classes as "mild" hybrids, i.e. they have a
> combined starter/alternator and a larger 12V (or for larger engines 48V)
> battery ...
>
> But they don't actully count as real hybrids as far as low emission
> zones are concerned, they're mostly designed for lower taxation due to
> them producing theoretically lower CO2 output.
>

Audi's are relatively dear cars, but are popular here. (I myself drive a Honda)
I started noting those Romanian cars when I was last doing a bit of driving,
about five years years ago, and when I am being driven now, they still are
around. Realy a peoples car, Isuppose.


--
greymausg@mail.com
where is our money gone, Dude?
Re: After the storm, hopefully [message #419094 is a reply to message #419083] Mon, 13 February 2023 10:43 Go to previous messageGo to next message
Anonymous
Karma:
Originally posted by: Kurt Weiske

To: Vir Campestris
-=> Vir Campestris wrote to alt.folklore.computers <=-

VC> My son does a lot of business miles, and his comment is that most of
VC> these plug-in hybrids have tiny fuel tanks and small batteries. Neither
VC> range is good.

I have a 2014 Plug-in Prius, it's got a small battery that's only good
for 10 mile on a plug-in session. The gas tank is 10 gallons.

That doesn't sound like a lot, but with regenerative braking, you can
get a couple of miles for "free" when driving up and down hills. That
drives the aggregate MPG up - my display usually indicates 54-56 mpg.
With a mixture of in-town and freeway driving and a charge or two a
week, that works out to around 480-500 miles range before the
conservative refuel indicator comes on.

kurt weiske | kweiske at realitycheckbbs dot org
| http://realitycheckbbs.org
| 1:218/700@fidonet




.... UNPRISON YOUR THINK RHINO
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Re: After the storm, hopefully [message #419095 is a reply to message #419084] Mon, 13 February 2023 10:46 Go to previous messageGo to next message
Anonymous
Karma:
Originally posted by: Kurt Weiske

To: maus
-=> maus wrote to alt.folklore.computers <=-

ma> Most hybrid's I have heard of have petrol, not deisel, engines.
ma> Utterley useless for pulling a load.

I'd always thought that VW should have made a diesel hybrid (before
their recent testing antics, that is). A hybrid diesel running on
biodiesel or waste vegetable oil would check all of the boxes for
self-righteous environmental types around here.

kurt weiske | kweiske at realitycheckbbs dot org
| http://realitycheckbbs.org
| 1:218/700@fidonet



.... The strongest steel is forged in the fires of a dumpster.
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Re: After the storm, hopefully [message #419096 is a reply to message #419095] Tue, 14 February 2023 12:16 Go to previous messageGo to next message
GreyMaus[1] is currently offline  GreyMaus[1]
Messages: 1140
Registered: February 2013
Karma: 0
Senior Member
On 2023-02-13, Kurt Weiske <kurt.weiske@realitycheckbbs.org.remove-5oi-this> wrote:
> To: maus
> -=> maus wrote to alt.folklore.computers <=-
>
> ma> Most hybrid's I have heard of have petrol, not deisel, engines.
> ma> Utterley useless for pulling a load.
>
> I'd always thought that VW should have made a diesel hybrid (before
> their recent testing antics, that is). A hybrid diesel running on
> biodiesel or waste vegetable oil would check all of the boxes for
> self-righteous environmental types around here.
>
> kurt weiske | kweiske at realitycheckbbs dot org
> | http://realitycheckbbs.org
> | 1:218/700@fidonet
>
>
>
> ... The strongest steel is forged in the fires of a dumpster.
> --- MultiMail/Win v0.52
> --- Synchronet 3.19c-Win32 NewsLink 1.113
> * realitycheckBBS - Aptos, CA - telnet://realitycheckbbs.org


I had, among other autos, a Nissn Micra. I loved it dearly, and made provisions
for pushing back the drivers seat for room. One thing I discovered was not to try
to stop quickly from a high speed.

I used to farm. They used to estimate that you could grow enough fuel on 15% of
the area of a mixed use farm to keep the farm in power. That did not include the
power needed to build new tractors

--
greymausg@mail.com
where is our money gone, Dude?
Re: After the storm, hopefully [message #419102 is a reply to message #419084] Wed, 15 February 2023 12:26 Go to previous messageGo to next message
Anonymous
Karma:
Originally posted by: Vir Campestris

On 12/02/2023 22:50, maus wrote:
> Most hybrid's I have heard of have petrol, not deisel, engines. Utterley useless for
> pulling a load.

So a Land-Rover V8 can't pull anything?

By the time it's been through a hybrid transmission the torque
characteristics of the engine don't matter a damn.

Come to that I've had petrol cars with towbars that would quite happily
spin their drive wheels...

The legend of torque and towing is just that. A legend. And like many
others it has no basis in fact.

Andy
Re: After the storm, hopefully [message #419103 is a reply to message #419087] Wed, 15 February 2023 12:29 Go to previous messageGo to next message
Anonymous
Karma:
Originally posted by: Vir Campestris

On 13/02/2023 00:02, Scott Lurndal wrote:
> Right now, the EROI for U from seawater is significantly less
> than unity. Not a viable option.
>
> https://www.scientificamerican.com/article/how-long-will-glo bal-uranium-deposits-last/
>
> That's 200 years worth for the existing fleet of 439 reactors.
>
> Now multiply that by the tens of thousands of reactors that
> need to be built to replace the fossil fuel based energy.

Very interesting link, thank you. I especially like the last sentence:

"Breeder reactors could match today's nuclear output for 30,000 years
using only the NEA-estimated supplies."

Andy
Re: After the storm, hopefully [message #419104 is a reply to message #419103] Wed, 15 February 2023 14:02 Go to previous messageGo to next message
scott is currently offline  scott
Messages: 4237
Registered: February 2012
Karma: 0
Senior Member
Vir Campestris <vir.campestris@invalid.invalid> writes:
> On 13/02/2023 00:02, Scott Lurndal wrote:
>> Right now, the EROI for U from seawater is significantly less
>> than unity. Not a viable option.
>>
>> https://www.scientificamerican.com/article/how-long-will-glo bal-uranium-deposits-last/
>>
>> That's 200 years worth for the existing fleet of 439 reactors.
>>
>> Now multiply that by the tens of thousands of reactors that
>> need to be built to replace the fossil fuel based energy.
>
> Very interesting link, thank you. I especially like the last sentence:
>
> "Breeder reactors could match today's nuclear output for 30,000 years
> using only the NEA-estimated supplies."

"Today's nuclear output for 30,000 years", when you add 30,000 new
reactors, does that drop to 1 year?

One must also consider:

https://dothemath.ucsd.edu/2011/07/galactic-scale-energy/
Re: After the storm, hopefully [message #419105 is a reply to message #419102] Wed, 15 February 2023 14:32 Go to previous messageGo to next message
GreyMaus[1] is currently offline  GreyMaus[1]
Messages: 1140
Registered: February 2013
Karma: 0
Senior Member
On 2023-02-15, Vir Campestris <vir.campestris@invalid.invalid> wrote:
> On 12/02/2023 22:50, maus wrote:
>> Most hybrid's I have heard of have petrol, not deisel, engines. Utterley useless for
>> pulling a load.
>
> So a Land-Rover V8 can't pull anything?

What has a Landrover V8 got to do with anything? (Thoughts of Tina Turner}

I drove a Land rover for years as part of my job, and only sold it because
the drivers seat could not be adjusted. A Defender with an Austrian 5 cylinder
engine. Anything else was only a ponce wagen
>
> By the time it's been through a hybrid transmission the torque
> characteristics of the engine don't matter a damn.
>
> Come to that I've had petrol cars with towbars that would quite happily
> spin their drive wheels...

Memories of a mate who had a mate that was so fat that he had to sit in
front or back to stop the wheels spinning
>
> The legend of torque and towing is just that. A legend. And like many
> others it has no basis in fact.
>
> Andy


--
greymausg@mail.com
where is our money gone, Dude?
Re: After the storm, hopefully [message #419107 is a reply to message #419104] Wed, 15 February 2023 16:18 Go to previous messageGo to next message
Ahem A Rivet's Shot is currently offline  Ahem A Rivet's Shot
Messages: 4843
Registered: January 2012
Karma: 0
Senior Member
On Wed, 15 Feb 2023 19:02:19 GMT
scott@slp53.sl.home (Scott Lurndal) wrote:

> "Today's nuclear output for 30,000 years", when you add 30,000 new
> reactors, does that drop to 1 year?

As we have 439 reactors currently I presume that gives us 439 years
until we have to find a sustainable solution or take the 90% population hit.

Of course there remains the problem of NIMBY^30000 which is likely
insurmountable especially when added to the detail that breeder reactors
are weapons technology which in widespread use would make weapons grade
fissionable material widely available which will add NITBY to NIMBY.

--
Steve O'Hara-Smith
Odds and Ends at http://www.sohara.org/
Re: After the storm, hopefully [message #419108 is a reply to message #419107] Wed, 15 February 2023 16:40 Go to previous messageGo to next message
scott is currently offline  scott
Messages: 4237
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Senior Member
Ahem A Rivet's Shot <steveo@eircom.net> writes:
> On Wed, 15 Feb 2023 19:02:19 GMT
> scott@slp53.sl.home (Scott Lurndal) wrote:
>
>> "Today's nuclear output for 30,000 years", when you add 30,000 new
>> reactors, does that drop to 1 year?
>
> As we have 439 reactors currently I presume that gives us 439 years
> until we have to find a sustainable solution or take the 90% population hit.

Those 439 reactors produce about 400 GW of electricity. The world
currently consumes 20 TW of electricity . To replace fossil fuels
(absent renwables for argument sake) with nuclear, would require
19,600 additional reactors (at 1GW each); and given the
amount of time necessary to build such a large fleet, by the time
it is complete worldwide consumption will have increased by 50%
at current 2.3% annual growth rate, so closer to 30,000 new 1GW
plants would be necessary.

>
> Of course there remains the problem of NIMBY^30000 which is likely
> insurmountable especially when added to the detail that breeder reactors
> are weapons technology which in widespread use would make weapons grade
> fissionable material widely available which will add NITBY to NIMBY.

Fundamentally, we cannot continue to grow energy consumption by 2.3%
annually for much longer. And given that capitalism requires annual
growth, in its modern incarnation, the global economy must transition from
growth-based to steady-state. That's gonna be hard.
Re: After the storm, hopefully [message #419112 is a reply to message #419108] Thu, 16 February 2023 05:41 Go to previous messageGo to next message
Ahem A Rivet's Shot is currently offline  Ahem A Rivet's Shot
Messages: 4843
Registered: January 2012
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Senior Member
On Wed, 15 Feb 2023 21:40:56 GMT
scott@slp53.sl.home (Scott Lurndal) wrote:

> Those 439 reactors produce about 400 GW of electricity. The world
> currently consumes 20 TW of electricity . To replace fossil fuels
> (absent renwables for argument sake) with nuclear, would require
> 19,600 additional reactors (at 1GW each); and given the
> amount of time necessary to build such a large fleet, by the time
> it is complete worldwide consumption will have increased by 50%
> at current 2.3% annual growth rate, so closer to 30,000 new 1GW
> plants would be necessar

Yes that's the basis behind saying that if we have the fuel to run
those 439 for 30k years (claimed for breeder reactors upthread) then we have
the fuel to run 30K reactors for 439 years and then we need a real
solution15

Personally I think we have a better chance of building the 100K or
so million litre flow batteries that we'd need to run everything off
intermittent sources.

> Fundamentally, we cannot continue to grow energy consumption by 2.3%
> annually for much longer.

True, the real question is how much energy consumption per capita
can we sustain and what can we do with it.

> And given that capitalism requires annual
> growth, in its modern incarnation, the global economy must transition from
> growth-based to steady-state. That's gonna be hard.

Yes it is, but that growth is only essential so that the money
manipulators can cream off their cut for doing nothing productive.

--
Steve O'Hara-Smith
Odds and Ends at http://www.sohara.org/
Re: After the storm, hopefully [message #419113 is a reply to message #419105] Thu, 16 February 2023 07:11 Go to previous messageGo to next message
Anonymous
Karma:
Originally posted by: Vir Campestris

On 15/02/2023 19:32, maus wrote:
> On 2023-02-15, Vir Campestris <vir.campestris@invalid.invalid> wrote:
>> On 12/02/2023 22:50, maus wrote:
>>> Most hybrid's I have heard of have petrol, not deisel, engines. Utterley useless for
>>> pulling a load.
>>
>> So a Land-Rover V8 can't pull anything?
>
> What has a Landrover V8 got to do with anything? (Thoughts of Tina Turner}
>
In case it's escaped your notice it's a petrol engine.
<snip>

Andy
Re: After the storm, hopefully [message #419114 is a reply to message #419112] Thu, 16 February 2023 07:21 Go to previous messageGo to previous message
Anonymous
Karma:
Originally posted by: Vir Campestris

On 16/02/2023 10:41, Ahem A Rivet's Shot wrote:
> True, the real question is how much energy consumption per capita
> can we sustain and what can we do with it.

It's not just the energy per capita, but the number of people.

In 1800 the world population was less than a billion.
It's now over 6, and still growing.

If we don't get that under control nothing else matters.

Andy
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