jeffh@brl-sem.ARPA (the Shadow) (08/29/85)
This was originally posted to net.physics, but I thought the readers of this group are better qualified to appreciate it. In article <457@petfe.UUCP> bobp@petfe.UUCP (Bob Philhower) writes: ><<>> >OK, all you bird-lovers (P?); anyone want to comment on this situation? > >Given: A bottle, (of arbitrary size), containing one (1) bird >(of arbitrary species). The bottle is placed on a garden-variety >bathroom scale (arbitrarily accurate), and the weight of the system >is measured with the bird sitting on the bottom of the *closed* >bottle. Now the bird decides to fly around inside the bottle, and >the weight is read again. Any weight difference? > >Now, what if the bottle cap (massless, of course) is removed; again, >any weight difference? What happens as the bird flies to the top of, >and eventually out of, the bottle? > >We've tried this, but after squeezing a robin through the bottle neck, >it doesn't seem to want to fly. > >-dan- I don't know how this fits in with neon tetras, banana slugs or guars, but i'm sure it relates. "You're so open minded That your brains leaked out" the Shadow ARPA: <jeffh@brl> UUCP: {seismo,decvax,cbosgd}!brl!jeffh