I am a student who has craze for science and its mysteries.
21 What is the proof that the universal constants ($G$, $\hbar$, $\ldots$) are really constant in time and space? Mar 2 '12
9 Why does a glass rod when rubbed with silk cloth aquire positive charge and not negative charge? Apr 10 '12
2 Compressibility factor Feb 27 '12
1 Time travel to future [duplicate] Feb 6 '12
0 Explanation about black color, and hence color Mar 3 '12