how to open a locker without the key?

Somebody lost the last key of the locker of his bike, so the only solution: brute force of science.



we dumped the 15€ dead locker into liquid N2 ...

the funny thing is i did not expect it to break where it broke, i was hitting what i though was more fragile: the cable connection, but nonononono i broke the hook fixation!

reading comments online, i realised that this type of locker can be cracked with a pen, or twisting it until it breaks. it seems "D" locks are more difficult to crack.

To follow in our next science test...