hello everyone. Can anybody help me with 2 answers:

 

The first question is that why we have spokes in bicycles i.e what is the function of spokes in bicycles.

 

My second question is why older bridges break down when some heavy vehicles are made to pass through them..

 

Please do help me with their answers...Thanks in anticipation

What do you think would happen to your bike if the spokes vanished?

and, when older bridges were constructed, say in the late 1600's, do you think that they were considering heavy goods vehicles?

What do you think would happen to your bike if the spokes vanished?

 

They already do -- every time I pedal hard!!!

You might want to have a look at this page.

http://en.wikipedia.org/wiki/Wire_wheels

I changed the thread name to better reflect the topic for those who scan titles.

They already do -- every time I pedal hard!!!

 

Hehe! Laugh of the day!