Setting up a second monitor
antony at wayforth.co.uk
Fri Apr 21 14:56:35 UTC 2006
Daniel Carrera wrote:
> Karl Auer wrote:
>>> You can answer all of those questions, and get a decent knowledge of
>>> how a car works, without understanding the internal combustion engine.
>> Of course. But only via an ever-expanding set of rules about what to do
>> and what not to do.
> No, I'm thinking of things like "the radiator uses water to keep the
> engine cool so it won't melt".
But that's not true. An overheating engine would stop running long
before it melts.
Here you have a relatively small bit of
> knowledge that is enough to know what the radiator does and why it's
> important, and without having to understand the Otto cycle (which has
> nothing to do with radiators anyways).
>>> don't need to understand the Otto cycle to understand gears (heck,
>>> anyone who has riden a bicycle understands gears).
>> No - and people who don't understand gears will happily halve the life
>> of a car by revving it too low. You can add another rule, but...
> So in this case, I would explain gears without explaining the Otto
> cycle. Gears are easy enough to explain ("it's just like bicycles, you
> choose the correct gear or the engine will work too hard and eventually
Not true either. It's more to do with fuel economy and refinement, not
to mention avoiding the engine labouring, fwiw. I could drive around
town all day in second gear and my engine would be no more likely to
break than if I drove around town using all gears.
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