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> Every car I've ever seen has hinges which try to force the door fully open
> or fully closed. Now you can see why fully closed would be a good idea.
> But if you're parked in a tight space, it's really irritating that you
> can't let go of the door because you'll either get a door in your face, or
> the door will spring open and scratch up the car next to you.
>
> Such a simple problem, yet nobody has solved it. WHY?!! >_<
Huh? Every car I've had for decades has a soft "stop" half way where the
door is quite stable. You can then push it a bit harder and it locks all
the way out. Try it!
> Why are the downstairs taps connected to the mains, but the upstairs ones
> connected to a tank?
To stop you having mains pressure cold (~1-5 bar) next to tank pressure hot
(~0.2 bar) in the bath. Imagine what happens when you connect one of those
old-fashioned shower adapters to the bath taps, turn hot and cold to full
and then turn *off* the shower head. Fortunately now we have taps with
back-flow prevention valves and fancy mixer taps to avoid this problem.
Many houses don't have a cold tank, and some won't have a hot tank either
(the hot is heated on-demand by the boiler).
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