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- Xref: sparky sci.electronics:21480 sci.energy:6415 rec.autos.tech:17115
- Path: sparky!uunet!contex!marvin.contex.com!frank
- From: frank@marvin.contex.com (Frank Perdicaro)
- Newsgroups: sci.electronics,sci.energy,rec.autos.tech
- Subject: Re: Flywheel batteries as EV power source
- Message-ID: <3221@contex.contex.com>
- Date: 23 Dec 92 18:30:14 GMT
- References: <1992Dec17.035214.15058@u.washington.edu> <1gov35INNik@gap.calte <1h2vvbINNfm0@gap.caltech.edu>
- Sender: news@contex.contex.com
- Followup-To: sci.electronics
- Organization: Xyvision Design Systems
- Lines: 44
-
- In article <1h2vvbINNfm0@gap.caltech.edu> carl@SOL1.GPS.CALTECH.EDU (Carl J Lydick) writes:
- >ch.edu> <199
- >Reply-To: carl@SOL1.GPS.CALTECH.EDU
- >Organization: HST Wide Field/Planetary Camera
- >Lines: 18
- >Xref: contex sci.electronics:36639 sci.energy:12114 rec.autos.tech:36142
- >NNTP-Posting-Host: sol1.gps.caltech.edu
- >
- >In article <72053@cup.portal.com>, lordSnooty@cup.portal.com (Andrew - Palfreyman) writes:
- >>Re. the exploding flywheel: I was mulling on flash-filling the
- >>cavity with thick-setting foam, but I imagine that the response
- >>time is way too long compared with the split of the wheel.
- >>Comments?
- >
- >Even if the response time weren't too long, this "foam" would merely be yet
- >another thing for the flywheel fragments to vaporize, and would almost
- >certainly only exacerbate the problem. Why do so many people have so little
- >grasp of the amount of energy we're talking about, here?
-
- I do not know. Perhaps there are a great many people that have never
- played with big spinning things.
-
- Anybody ever see the mess when a clutch plate fails ( at 8000 rpm or so )
- and does a good job of cutting a small car in half? Has anybody ever
- seen a saw blade ( 10" at < 10000 rpm ) catch a piece of wood and send
- that piece of wood through a wall, and then through a door? How about
- a large ( truck ) wheel collide with a small car and total it. Has
- anybody used a potters wheel? Has anybody ever read of people having
- arms torn off by washing machines?
-
- I think its different, though. It is well known ( references a plenty
- ) that humans are not good at grasping and scaling non-linear relationships.
- Take compound interest for example -- it seem like majic only because
- of the way are brains are wired, not because it is special in any
- mathematical sense. So, as a part of our biology, we dismiss these
- types of scaling because they seem "impossible".
-
- Thus we get into discussions like this.
-
- --
- Frank E Perdicaro, Systems Admin, etc. Xyvision Color Systems
- Legalize guns, drugs and cash...today. 101 Edgewater Drive
- inhouse: frank@marvin, x5572 Wakefield MA
- outhouse: frank@contex.com, 617-245-4100x5572 018801285
-