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- Path: sparky!uunet!olivea!hal.com!decwrl!deccrl!news.crl.dec.com!news!nntpd.lkg.dec.com!kay.enet.dec.com!fisher
- From: fisher@kay.enet.dec.com (kay::fisher)
- Newsgroups: rec.models.rc
- Subject: Thermals don't travel at prevailing wind speed
- Message-ID: <1992Jul28.042041.926@nntpd.lkg.dec.com>
- Date: 28 Jul 92 05:17:18 GMT
- References: <1992Jul23.221308.24156@bcrka451.bnr.ca>
- Sender: usenet@nntpd.lkg.dec.com (USENET News System)
- Organization: Digital Equipment Corporation
- Lines: 20
- X-Posted-Via: NEWS-NOTES gateway (a hack!)
-
- > <<< Note 3.4 by ::mkfeil@bcrki9 "mkfeil@bcrki9.bnr.ca ()" >>>
- > -< Re: More R/C Gliding........ >-
- >
- >In article <1992Jul22.233354.6431@rtsg.mot.com>, svoboda@rtsg.mot.com
- >(David Svoboda) writes:
- >> forth across the region, always turning into the wind. The thermal moves
- >> downwind, a little slower than the wind speed.
- >
- >Please explain. How can a thermal bubble move slower than the average
- >speed of the surrounding air mass?
-
- The same way bubbles get to the surface of a river. If they only
- went down stream they would never come up. If they come up then
- obviously they aren't going down stream as fast as the rest of the
- river.
-
- Bye --+--
- Kay R. Fisher |
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