From: utzoo!decvax!harpo!ihps3!ihuxv!lew Newsgroups: net.physics Title: buoyancy Article-I.D.: ihuxv.222 Posted: Fri Aug 13 08:27:52 1982 Received: Sun Aug 15 06:30:20 1982 A Helium balloon in a car will pitch forward when the car accelerates, and backward when it brakes. This is easy to predict but it actually works! The effect is striking. Lew Mammel, Jr. - BTL Indian Hill