On Thu, 26 Jun 2003, muppet wrote: > Ian Malpass said: > > On Thu, 26 Jun 2003, Nicholas Clark wrote: > > > >> Meanwhile, which is heavier, an ounce of feathers or an ounce of gold? > > > > In air, an ounce of gold. In a vacuum, they weigh the same. > > bzzt! they always weigh the same, because the same mass experiences the same > amount of gravitational attraction. air vs vacuum makes a difference for > falling speed, which for some reason is of incredible interest to physicists.
Bzzt! You're forgetting the effect of uplift in a fluid. Now, of course, we're assuming the feathers are in an uncompressed state.... Ian - -- ------------------------------------------------------------------------ The soul would have no rainbows if the eyes held no tears. Ian Malpass [EMAIL PROTECTED]
