X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: f9e16,53f9f7cceb4d817f X-Google-Attributes: gidf9e16,public X-Google-Thread: fc9f9,53f9f7cceb4d817f X-Google-Attributes: gidfc9f9,public X-Google-Thread: f996b,53f9f7cceb4d817f X-Google-Attributes: gidf996b,public X-Google-Thread: fcfb9,d0123b843bd8782d X-Google-Attributes: gidfcfb9,public X-Google-Thread: f9391,53f9f7cceb4d817f X-Google-Attributes: gidf9391,public X-Google-Thread: 107d75,4a81179a975b6945 X-Google-Attributes: gid107d75,public X-Google-Thread: 10cbb9,53f9f7cceb4d817f X-Google-Attributes: gid10cbb9,public X-Google-Thread: 10eb3b,53f9f7cceb4d817f X-Google-Attributes: gid10eb3b,public X-Google-ArrivalTime: 2002-03-28 11:39:09 PST Path: archiver1.google.com!news1.google.com!sn-xit-02!sn-xit-01!supernews.com!iad-peer.news.verio.net!news.verio.net!newsfeed.cwix.com!newsfeed.frii.com!not-for-mail Message-ID: <3CA37136.7E82003F@greyREMOVErock.org> Date: Thu, 28 Mar 2002 12:38:31 -0700 From: Elizabeth X-Mailer: Mozilla 4.79 (Macintosh; U; PPC) X-Accept-Language: en MIME-Version: 1.0 Newsgroups: alt.ascii-art,alt.seduction.fast,comp.os.linux.advocacy,comp.text.tex,alt.flame.jesus.christ,comp.sys.mac.advocacy,comp.unix.bsd.openbsd.misc,comp.unix.bsd.freebsd.misc,comp.unix.bsd.misc,sci.physics Subject: Re: A question for those interested in physics... References: <3CA18BA6.1C0@_REMOVETHIS_erols.com> <3CA1691A.88F49844@csse.monash.edu.au> <3CA1966B.605@_REMOVETHIS_erols.com> <3CA173D1.7487D861@csse.monash.edu.au> <3CA2179C.198B6F6F@greyREMOVErock.org> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Lines: 55 NNTP-Posting-Host: 216.17.192.109 X-Trace: 1017344346 news.frii.com 69915 216.17.192.109 Xref: archiver1.google.com alt.ascii-art:16353 alt.seduction.fast:80596 comp.os.linux.advocacy:220733 comp.text.tex:43759 alt.flame.jesus.christ:74454 comp.sys.mac.advocacy:137163 comp.unix.bsd.openbsd.misc:14975 comp.unix.bsd.freebsd.misc:52920 comp.unix.bsd.misc:1264 sci.physics:164969 Not Here wrote: > > "Elizabeth" wrote in message > news:3CA2179C.198B6F6F@greyREMOVErock.org... > > David Squire wrote: > > > > > > "Dr. Rev. Chuck, M.D., P.A." wrote: > > > > > > > David Squire wrote: > > > > > > > > > > "Dr. Rev. Chuck, M.D., P.A." wrote: > > > > > > > > > > > none wrote: > > > > > > > > > > > > > > As far as comparing them to rain... Lead is a lot heavier than > water and > > > > > > > will come down quite a bit faster, > > > > > > > > > > > > Nope. > > > > > > > > > > If its in a pellet the same size and shape it will. The force due to > air > > > > > resistance will be the same in both cases, whereas the force due to > gravity > > > > > will be higher on the lead pellet, due to its higher mass - it is > more than > > > > > 11 times more dense. > > > > > > > > Does the name "Galileo" ring a bell? > > > > > > Does "in a vacuum" ring a bell? > > > > > > Galileo's result is true only in the absence of air resistance. You can > try it at > > > home: drop a feather and a ball bearing from the same height and time > their > > > descents. > > > > > > D. > > If you ring a bell in a vacuum does it make a sound? > > You probably know the answer to that one Elizabeth, but i will try to > enlighten all who don't know. Sound waves need some form of matter in order > to travel. Since there is no form of matter in a perfect vacuum, one would > have to conclude that the sound waves travel only through the object that > made the sound, i.e. the bell. Am I close? > It was sort of a joke question. I haven't studied physics for a while, but IIRC, it doesn't make a sound. I guess we're talking about a closed system, so the energy required to ring the bell must come from within, and barring no other forces involved, the bell would vibrate indefinitely. Now I wonder if there's a small amount of heat involved in the transfer of energy. Anybody know? I haven't thought about this stuff in ages! Elizabeth