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Two Wheels
On Wed, 8 Apr 2009 00:34:26 -0400, "Blake"
wrote: wrote in message ... On Apr 7, 6:01 pm, "Blake" wrote: "Rick" wrote in message ... Uh, the thing has 4 wheels... Pfffftttt... Look at the pictures;) yeah, just like a top fuel funny dragster has 6 wheels and really needs them And like a bicycle with training wheels; it's still a bicycle. The reference is to the main wheels. We might as well really act stupid and claim steering wheels count too. Or... .you could say it has 4 wheels, which it does, All four are essential to the operation. Or we could just be stupid and say those round things that keep it stable are not wheels.. A bike with training wheels has 4 wheels professor.. Now take your crossposting penis pullers and go back to your engineering group where you can all measure yourselves and argue about units of measure. You're too funny. People reply to your crossposted message and you insult them for crossposting. Lmaoay I counted six on the news photo Gerry :-)} London, Canada |
Two Wheels
On Wed, 8 Apr 2009 04:38:02 -0700 (PDT), Jim Wilkins
wrote: On Apr 7, 10:22*pm, Gerald Miller wrote: ... Which was it, Honda or Toyota came up with a more elaborate version of this that was shown on TV a few months back. IIRC it had three wheels and only carried one person. Looked somewhat like Granny's rocking chair! Gerry :-)} Like these? http://en.wikipedia.org/wiki/Isetta The Germans switched to larger cars as soon as they could afford them. When I was there in the early 1970's the various tiny cars were already curiosities and museum pieces. No, this was a new design, basically a chair on three wheels that reclined further back at higher speeds. Gerry :-)} London, Canada |
Two Wheels
"Mark & Steven Bornfeld" wrote in message ... Jim Wilkins wrote: On Apr 7, 10:22 pm, Gerald Miller wrote: ... Which was it, Honda or Toyota came up with a more elaborate version of this that was shown on TV a few months back. IIRC it had three wheels and only carried one person. Looked somewhat like Granny's rocking chair! Gerry :-)} Like these? http://en.wikipedia.org/wiki/Isetta The Germans switched to larger cars as soon as they could afford them. When I was there in the early 1970's the various tiny cars were already curiosities and museum pieces. Personally I need a vehicle that will carry wheelchairs, 10' pipe, lumber, corrugated roofing, machinery, etc. Even if it were free an extra tiny vehicle that doesn't carry cargo would cost me more in insurance than it would save in gas, the CRV does all of the above, in any weather, and gets over 25 MPG. I've tried using a motorcycle with saddlebags for everything, including long camping trips. The real irony is that emissions and safety regulations eliminated vehicles such as the 1978 Accord I had, which would also hold 10' pipe internally and delivered 36 - 38 MPG in normal driving and well over 40 on a trip. I still have a 1980 one in round tuit status, the mandated changes dropped its mileage to barely 30. It was roomy and comfortable enough to hold my parents and me on a long trip around eastern Canada Jim Wilkins I remember those old Hondas--when they first started importing them in the '70s I think they claimed 50 mpg on the highway. Ironically, I've noticed that Honda recently came out with a car called a "Fit" which looks a bit like the Honda Civic of old. I'm sure it doesn't get nearly the same mileage though. For that matter, the "Smart" car doesn't get the mileage it should IMO to justify the tiny size. I'm just annoyed at Segway making another claim that they are going to change life as we know it on planet earth. Steve -- Mark & Steven Bornfeld DDS http://www.dentaltwins.com Brooklyn, NY 718-258-5001 The first Honda car imports were real POS vehicles. Banned from the road in Calif. They were 500cc motorcyle engine with chain drive cars. |
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Two Wheels
"Cliff" wrote in message ... On Tue, 7 Apr 2009 23:32:35 -0700, "Calif Bill" wrote: Instead if falling over, it would fall frontwards or backwards. Still falling over. HUH? Must be a winger. -- Cliff If it had wings it might fly. |
Two Wheels
On Wed, 08 Apr 2009 20:15:02 -0400, Gerald Miller
wrote: On Wed, 8 Apr 2009 04:38:02 -0700 (PDT), Jim Wilkins wrote: On Apr 7, 10:22*pm, Gerald Miller wrote: ... Which was it, Honda or Toyota came up with a more elaborate version of this that was shown on TV a few months back. IIRC it had three wheels and only carried one person. Looked somewhat like Granny's rocking chair! Gerry :-)} Like these? http://en.wikipedia.org/wiki/Isetta The Germans switched to larger cars as soon as they could afford them. When I was there in the early 1970's the various tiny cars were already curiosities and museum pieces. No, this was a new design, basically a chair on three wheels that reclined further back at higher speeds. Gerry :-)} London, Canada See: http://www.toyota.co.jp/en/tech/p_mo...eal/index.html Gerry :-)} London, Canada |
Two Wheels
On Apr 7, 3:06 pm, Jim Wilkins wrote:
On Apr 7, 1:55 pm, RobertH wrote: The only potential advantage over in-line two wheelers is that, supposedly, it won't fall over. ... Ever try one? Bicycles and crowds of people don't mix well at all because of the difficulty of starting and stopping and the need to maintain some speed to balance. Segways stop and stand still easily, like pedestrians. Could you push a grocery store shopping cart with a standard bicycle? You can easily on a Segway, or spin around in place to pull it. Segways are pretty cool, but I'd wager that anything you can haul with a Segway I could haul with a standard bike. Could be a John Henry moment. Several times I have pulled dollies/hand carts with around 200 pounds on a standard bicycle. |
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On Tue, 07 Apr 2009 03:32:49 -0400, Cliff wrote:
http://www.latimes.com/business/la-f...,2638670.story [ GM, Segway think 2 wheels The companies plan to develop a two-wheeled, two-seat electric vehicle as a clean, safe and inexpensive alternative to traditional cars. Associated Press April 7, 2009 New York -- A solution to the world's urban transportation problems could lie in two wheels, not four, according to executives of General Motors Corp. and Segway Inc. The companies plan to announce today that they are developing a two-wheeled, two-seat electric vehicle designed to be a safe, inexpensive and clean alternative to traditional cars for cities across the world. The companies said their project, dubbed PUMA, for Personal Urban Mobility and Accessibility, would include a communications network allowing vehicles to interact with one another to regulate traffic flow and prevent crashes. The 300-pound prototype runs on a lithium-ion battery and dual electric motors and ..... ] More (with more detail): http://www.technewsworld.com/story/G...r-2-66751.html -- Cliff |
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On Wed, 8 Apr 2009 17:53:40 -0700, "Calif Bill"
wrote: Plus you get much of the energy back going down I think ... -- Cliff I doubt they have regenerative braking. http://www.technewsworld.com/story/G...r-2-66751.html "Features include electronic acceleration, steering and braking; vehicle-to-vehicle communications; and autonomous driving and parking." They'd probably lose too much energy without it. http://www.segway.com/puma/ "Add in regenerative braking capability (being able to recharge while decelerating) and that’s some smart battery tech." -- Cliff |
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On Apr 9, 12:29*am, RobertH wrote:
On Apr 7, 3:06 pm, Jim Wilkins wrote: Segways are pretty cool, but I'd wager that anything you can haul with a Segway I could haul with a standard bike. Could be a John Henry moment. Several times I have pulled dollies/hand carts with around 200 pounds on a standard bicycle. I'm sure you could in wide-open vehicle spaces, I've hauled a small boat many miles with a bicycle. Either can transport me + the other one, so I could ride upstream, float down, then ride home. Segways also operate just fine in people spaces, like office aisles, while unless you stop and muscle it around a bicycle isn't much more maneuverable indoors than a forklift. The GM plant where I worked for a while had pedal trikes for people who carried stuff around. They were safer because they didn't have a minimum speed for balance. Electric motors generate a voltage proportional to their RPM, the Back EMF. When they are externally spun fast enough the Back EMF can be rectified to recharge the batteries. That's all that that basic Regenerative Braking amounts to. Jim Wilkins |
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