Hi frako, and welcome to the fray, if I haven't already. and Buz
As a designer, I agree that reuse of design is common - if it aint broke don't fix it + why spend time reinventing the wheel when you have one that works well enough for the design intent.
Of course we are also looking for ways to improve on previous designs, increase efficiency, lower costs, etc.
you could be on to something here, im speculating on the fact that my country is small a population of 2 million as moste countries have problems whit to few schools we have too many in some places primary schools average 15 students per class,
I went to a private school run by a university, where they trained teachers. We had class size ~30 and one main teacher with 2 student teachers per class. Consistently higher grades on state tests compared to public school.
Why have we wasted the braking energy in automobiles, for example, for over a century? Why haven't we designed brakes so that going energy is generated each time the brakes are applied? The same goes with bicycles, etc.
some hybrids now use the energy created during braking to power up their batteries
The problem is a storage medium that is compatible with the design. This works well with electrical vehicles (busses in Toronto 20 years ago were using electric brakes to recapture energy), but means you need batteries. Such design is not practical at this time for bicycles.
A long time ago our automobiles should have had lift up complete front shells over engines like our big trucks have so as to expose the complete engine for repair etc.
i agree i had problems in my former car a 1999 golf 4 sdi i couldent change the lights if they got fried unless i took out the battery, i think that its cause the engeniers that desighn the car arent mechanics they dont give a damm if its hard to fix cause they wont be fixsing it.
There are two things operating against you here: first is the additional structure in the front ends of cars to provide more safety during crashes than before, second is that people buy cars based on style and appearance, rather than on maintainability -- because generally
they do not do the maintenance either, they leave that to the mechanics.
Enjoy.
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