The recent business of Heavy Boots (TM) was being discussed by my Engies the other day when I arrived to take them for a class. (I tutor a couple of freshman Engineer classes in Physics for the University.) Anyway, they were arguing about this, and decided they'd ask me what the situation was. I talked about gravity and how all matter/energy gravitates, etc. The Sun gravitates and all the stars, etc etc. I had to also explain that, contrary to what some of them thought, gravity acts even when there is no air (!!); that the Moon has gravity despite having no atmosphere. This took some convincing(!), but I clinched it with the experiment with the hammer and feather -- they weren't wearing Heavy Boots, and yet still fell. I then proceeded to discuss the nature of scientific theories, testing hypotheses, keeping an open mind but remaining sceptical, the usual stuff. I tend to get very animated when I talk Physics, and raise my voice, gesticulate, pace, and generally carry on. After some 20 minutes of this talk about Science (TM) and Scientific Method (TM), I finished up with something like "So that is how Science is done. Formulate theories, test them and believe them only when and how far they predict experimental results. ... Now, any questions?" One girl up the back raises her hand, "Yes, I have one. You got very worked up over this -- are you a Scorpio?" Oi veh! joe ps Of course I'm not a Scorpio!! I have a very balanced approach to these things -- I'm a *Libra*. -- Joe Voros Department of Physics, Monash University, Clayton, VIC, 3168, Australia.
(From the "Rest" of RHF)