Apparently, this user prefers to keep an air of mystery about them.
21 Why is the moment of inertia (wrt. the center) for a hollow sphere higher than a solid sphere (with same radius and mass)? feb 23 '14
4 Why does a ball bounce forever? aug 29 '13
0 What allows for more traction: Rubber or skin? nov 30 '13
0 Pulley problem with two masses [closed] jan 29 '14
-1 How can we depend on the mathematical axioms that break down at the nano-level? [duplicate] oct 9 '13
-2 The inner workings of the Olbers paradox oct 9 '13