Gotcha..!!

Hello, I am back again with some stupidity. 

now for a while lets not talk about perticularly Burj Khalifa and finish this stupidity, now lets take all the skyscrapers under consideration. Going insane and talking rubbish is all fun for me :-p  and this is my worst stupidity of lifetime, till now, on internet. My next few lines may give shock to some of my friends but am gonna take that risk. Here are some calculations, don't worry guys not done by me found it on internet somewhere.

There's about 50 skyscrapers over 1000 ft (300 m). 'N'
The weight of the Empire State building is about 365 kilotons. 'M'

The radius of the earth is about 6371 km.

The difference of the moment of inertia due to raising that mass from the earth's surface to skyscraper height is N * M * (R2^2 - R1^2) = 50 * 4e8 * ((6e6+300)^2 - 6e6^2) ~ 7e19 kg-m2.
The moment of inertia of the earth is about 8.034e37 kg-m2.
Angular momentum is L = I * W and is conserved. Since it's proportional to the moment, we can look at the fractional change ~ 7e19 / 8e37 ~ 9e-19. Multiple that fraction by the length of the day, and we get 9e-19 * 24 * 60 * 60 ~ 8e-14 seconds. That's 8e-8 microseconds, or 80 femtoseconds.

WTF!!! I didn't understand a single line mentioned above.Honestly speaking I try t find out whether skyscrapers actually slows down the rotation of earth or not. But after banging my head into wall hoping that I can break that wall with my head, one thing I understand that 'who cares how much the length of the day is shortening or elongating.' Who wanna know that how many microsecond our day is longer or shorten. I am sick of all this, trying to find out about Earth which is of no use. Even I don't even understand the meaning of some of the symbols above in the calculations. LOL

One thing I forgot to mention, Each earthquake shortened the day by 2 microsecond and every year day gets 15 microseconds longer. Idk why this happens but telling you just for some ज्ञान.    

Anyways this is over now but burj is still onn. And I am on halt.

Till then if you have any computer related problem you can visit http://rajatswebworld.blogspot.com/  J