Why Reuse Design?

well it does make sense to reuse a design that works we humans do it all the time and we improve upon the design, although we dont put usless stuff that worked a few 1000 years ago in tents like rocks around the tents to hold them on the ground in our modern versions of tents houses, while in nature this happens often gills in human fetuses, the remains of a tail in humans ....Edited by frako, : No reason given.

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, high schools average around 20, collages from 20-25 except lectures they go up to 300, but if you compare the relative low number of population and the achievements of the population it is quite high, there hasent been an Olympics in witch we dint get any medals petra majdič won brontze whit broken ribs and a punctured lung lol, in science we ain't to shaby either dr. Mateja Jamnik Bierman reserching ai, got lots of international awards, Dr. Lučka Kajfe Bogataj, dr. Lidija Andolek Jeras ..... some hybrids now use the energy created during braking to power up their batteries 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.

well they did fix the problem later in the golf 5 model and the later golf 4 models, the problem is that designers arent also mechanics so they dont see a problem where there is one and then there is the european trend to make the cars roomier for the passengers while the car still is the same size so they take the space from the engine compartment. on the up side its fun to watch americans go "thers no way you can fit a V10 in that car"*pops the hood* "waaaaat!!!"

the problem would be that if you where going down a very long hill and use brakes insted of the motors own braking power (saves gas, and brakes) the coil or spring would eventualy block the rotation of the wheels and evan if this could be overcome there is still the question would the extra waight braught on by these presumably heavy coils actualy be of any benefit do to the more power needed by the cars motor to carry them around.if there was a sigificant benefit, and you could get around the first problem its really not a bad idea. that sort of thinking can get you a whole bunch of cash a kid made a double broom not long ago and as silly as it sounds the idea is being baught up by numerus companiesp.s.
thnx for the welcome

haha i have the opposite problem whit my sawmill the mill and the land around it is worth about 1.5 million EUR i would sell it for a million EUR but no one whit that kind of cash is stupid enough to go in to the sawmill business i hope that changes when the economy builds up steam cause whit that kind of cash i could retire.ok i think iv gone a bit too far off topic so il try to come backsometimes humanety not only reuses a design but they also combine 2 designs or more together in the sawmilling buisnes there are 2 typical designs the "brenta" it has a saw blade like a drive belt and it runs on 2 wheels you put the trunk in the middle and you can cut it any way you want but it takes time cause you only cut once during the log passes trough and you have the "gater" design that has many blades at a fixed position inside you cut very fast since the whole log gets cut in one go but you cant chose diferent spacers betwean the blades the minute you see the log it takes time to change them.so what they did was take the the best of both worlds and combined it some sawmills have up to 12 "brenta"s in a row that can be ajustet to cut anything you desire at a moments notice and the whole log gets cut in one go.