Apparently, this user prefers to keep an air of mystery about them.
2 Reaction due to gravity aug 14
2 How to transfer mechanical power from the inside of a vacuum chamber to the outside while maintaining a seal? jun 8 '14
2 Materials with directional friction property? jun 10 '14
1 Why the electric potential energy the charges carry in a electric circuit does not vary with its distance to the opposite terminal? jun 12