| Re: Why are SUVs and Christianity similar?
Deputy Dumbya Dawg wrote:
> "Bill Baka" <bbaka@comcast.net> wrote in message
> news:c6Pyh.19782: >
>
> : Side note, since this is a bicycle group that got
> contaminated.
> : Talking about efficiency, compare a regular bike with
> a streamlined
> : recumbent and the recumbent will always be faster
> with the same rider
> : fitness level. Why? Less air to push. Starting,
> stopping, and hills make
> : for a great equalizer.
> : Bill Baka
>
> I am on the renewable energy site. Since few roads are
> level or straight around here, there is a lot more
> positive and negative acceleration required driving
> these rolling hills. Around Atlanta the heavier the car
> the more fuel it will use.
City driving is always different from freeway driving because you do a
lot of starting and stopping -- conditions under which weight makes a
*huge* difference. Hills, in theory, make no difference whatsoever if
your starting and ending elevations are the same, since whatever energy
is expended on the way up is recovered on the way down. Of course, in
reality it doesn't quite work out that way for a number of reasons, not
the least of which is the tendency of drivers to drive inefficiently on
hills.
Having driven in Atlanta, though, perhaps I need to take back what I
said about freeway driving -- the freeways there are more stop-and-start
than the surface streets are! And I think any driver attempting to drive
efficiently up and down hills there will probably be run off the road in
a heartbeat....
|