Back to keyboard

As many of you know, I can play keyboard. Now many of you wonder, that what is the big deal in typing on keyboard? For those people let me clear that, I am talking about mini version of piano, and not the computer keyboard. For many days, my keyboard was "dhul kha raha tha". Yesterday I bought new cells and started playing it. The first day I found out tunes of "Dus Bahane kar ke le gaye dil (Dus)", "nach, nach nach balliye (NealNNikki)", and "Ek najar me bhi pyar hota hain (taxi no. 9211)". I will save the tunes.
Yestreday at night, I was reading the Scintific America magazines times issue. It talks about everything about time. I read the column on how to build time machine. Though I did not understand many(almost all) things, it was fun to read it.