Apparently, this user prefers to keep an air of mystery about them.
46 Speed of sound at temperatures below 0 °C feb 11 '14
18 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
11 Why the speed of light is represented by $c$? feb 10 '14
9 Practical (maybe naive) question on boiling water jul 21 '14