The Electric Car
in [Design]
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From: JosephKK on 6 Aug 2007 23:52 Jasen Betts jasen(a)free.net.nz posted to sci.electronics.design: > On 2007-08-03, Spehro Pefhany <speffSNIP(a)interlogDOTyou.knowwhat> > wrote: >> On Fri, 03 Aug 2007 20:55:38 +0200, René <rjz~REMOVE~@xs4all.nl> >> wrote: >> >>>On Fri, 03 Aug 2007 03:32:34 +0100, Eeyore >>><rabbitsfriendsandrelations(a)hotmail.com> wrote: >>> >>>>Flywheels are very impractical energy stores. The gyroscopic >>>>forces don't exactly help in vehicle use either. >>> >>>Counter-rotating flywheels have no net gyroscope effect. >> >> No matter the distance betwen the flywheels? > > no matter - as long at their axles are rigidly constrained to > point in the exact same direction and the have equal and opposite > rotational momentum. > > Bye. > Jasen Outside the unit there is no stresses, inside the unit there is. That better be one heck of an axel shaft.
From: JosephKK on 6 Aug 2007 23:56 Michael A. Terrell mike.terrell(a)earthlink.net posted to sci.electronics.design: > JosephKK wrote: >> >> But my favorite gal likes wearing dresses. Oh wait, that >> wouldn't >> be drag then. I guess i will have to tell her not to wear pants. > > > DRAG was from the theater when all parts were performed by > males. It > meant: 'DRessed As Girl' The other parts were DRAB, or "DRessed > As > Boy' I worked the stage crew on plays in high school, and the > drama teacher couldn't let a day go by without dumping a lot of > theatrical > history on us, while we were working on the play. BTW, I was the > sound man. > > > So, if you want to keep her in dresses you DO want her in drag. > > > -- > Service to my country? Been there, Done that, and I've got my > DD214 to prove it. > Member of DAV #85. > > Michael A. Terrell > Central Florida Thank you sir for explaining that to me.
From: JosephKK on 7 Aug 2007 00:11 default default(a)defaulter.net posted to sci.electronics.design: > On Sun, 29 Jul 2007 22:34:42 +1000, "Phil Allison" > <philallison(a)tpg.com.au> wrote: > >> >>"default" >> >>>>Is it not about time that we saw more hi spec electric cars on >>>>our roads. I saw the Tesla Roadster and it outperforms a Ferarri >>>>on acceleration but what of teh charging time. Can we now >>>>re-charge in say 10 mins? The overnight charge is impractable >>>>unless the car is to be used for short distances from home. >>> >>> Tesla Roadster has a range of 250 miles and recharge time of 12 >>> hours. That is more than ample for most commutes. >> >> >>** The Roadster has a recharge time ( from dead flat ) of 3.5 >>hours - according to the makers. >> >>Only thing is, owners need to have a dedicated, 3 phase power >>outlet >>available at home with a capacity of 15 kW - then it will >>costs about $10 or so in electricity for a full recharge. >> >> >>However .............. >> >>- just load the boot (ie trunk in the USA) with a bunch of these >>babies >>and get it done in only 1 minute !!!!! >> >>http://www.dcviews.com/press/Toshiba-One-minute.htm >> >> >>All you need is ** 3 megawatts ** capacity in the garage !!!!! >> >>Circa 4500 amps per phase . >> >> >> >> >>....... Phil >> > Most of us don't have three phase outlets and it is expensive to > get. > The twelve hours is from a source you'd have at home. Cross > country would be a problem - long extension cords and very > accommodating motel owners. > > One alternative to a different class of electrical service might > be super caps or storage batteries that could sip electricity all > day long then pass it to the car in one big gulp. > -- > > ----== Posted via Newsfeeds.Com - Unlimited-Unrestricted-Secure > Usenet News==---- http://www.newsfeeds.com The #1 Newsgroup > Service in the World! 120,000+ Newsgroups ----= East and > West-Coast Server Farms - Total Privacy via Encryption =---- This is a case where the flywheel (at hotels / motels) would have the advantage. Fixed location, plenty of time to spool up and spool down, and really serious energy per unit volume and weight, not excessive installation / maintenance costs.
From: Michael A. Terrell on 7 Aug 2007 00:32 JosephKK wrote: > > Michael A. Terrell mike.terrell(a)earthlink.net posted to > sci.electronics.design: > > > JosephKK wrote: > >> > >> But my favorite gal likes wearing dresses. Oh wait, that > >> wouldn't > >> be drag then. I guess i will have to tell her not to wear pants. > > > > > > DRAG was from the theater when all parts were performed by > > males. It > > meant: 'DRessed As Girl' The other parts were DRAB, or "DRessed > > As > > Boy' I worked the stage crew on plays in high school, and the > > drama teacher couldn't let a day go by without dumping a lot of > > theatrical > > history on us, while we were working on the play. BTW, I was the > > sound man. > > > > > > So, if you want to keep her in dresses you DO want her in drag. > > Thank you sir for explaining that to me. What can I say? My head is full of trivia, collected over the last 55 years. Maybe I should be a contestant on some game show? :) -- Service to my country? Been there, Done that, and I've got my DD214 to prove it. Member of DAV #85. Michael A. Terrell Central Florida
From: Eeyore on 7 Aug 2007 01:11
JosephKK wrote: > Eeyore rabbitsfriendsandrelations(a)hotmail.com posted > > Nobody wrote: > > > >> None of the major car makers are going to abandon ICE technology > >> soon, so they will be looking to "dual-purpose" as much of their > >> existing technology and infrastructure as possible. > > > > V8 hybrids ? Don't be so ridiculous. > > > > If US auto makers don't change their ways soon, they'll be out of > > business. > > > Please look at the proposed 2009 Cadillac Escalade. A 6 litre V8 AND 2 electric motors !! ? Only Americans could come up with something as bizarre as this. Graham |