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read the one on shockwaves. it was really gud. ur explaination was real nice, and friendly. cud hv given a definition for shockwave at the begining, for the layman. but nice 1.
luvd the one abt 2012........ dismisses all those misconceptions.

thanks to my lecturer! she was the one who gave an clear explanation!

I kinda liked your article on shock waves. You have given an understandable answer.

I c that.i tik it's better

It is good enough. Please add more info about Astrobiology.

yeah! nw there's a topic to explore!

Can u provide me a simplified explanation on string theory?

Please add more info on area 51.