Re: Asimov's sliding walkway
- From: andreas@xxxxxxxxxxxx (Harry Andreas)
- Date: Mon, 15 Oct 2007 16:00:04 -0700
In article <8AUPi.26$Wv7.10@xxxxxxxxxxxx>, "N:dlzc D:aol T:com \(dlzc\)"
<dlzc1@xxxxxxx> wrote:
Dear Harry Andreas:
"Harry Andreas" <andreas@xxxxxxxxxxxx> wrote in message
news:andreas-1210071704050001@xxxxxxxxxxxxxxx
...
Why bother with that?
When we can eventually make nano-technology
mass produced we will be able to electrically
move nano-fingers across a surface at varying
speeds which will have the effect of moving a mass.
Who polishes the surface to less than a few atoms height
variation?
Who says we will need to?
What do we use for power, and what makes you think it will be
more efficient than a gas-powered car?
Electricity comes to mind. Most things are more efficient than
a gas-powerd car, which is, what, 30% efficient?
Last time I worked in a power plant we were getting efficiencies
over 90%. Throw in some power line losses and it's still better
than 30-something %
--
Harry Andreas
Engineering raconteur
.
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