tag:blogger.com,1999:blog-2915042665565947443.post436863946760433036..comments2011-04-09T21:52:43.294-07:00Matthew Taylornoreply@blogger.comBlogger2125tag:blogger.com,1999:blog-2915042665565947443.post-56456203826446923322007-08-25T13:28:00.000-07:002007-08-25T13:28:00.000-07:00

Hi Franklin, The only true measure of the strength of gravity is with the <A HREF="http://en.wikipedia.org/wiki/Cavendish_experiment" REL="nofollow">Cavendish experiment</A>, the reason is because you know exactly how much matter make up the two masses. The problem however is that this experiment is extremely inaccurate because the measured force is very small. The end result of these experiments

Matthew Taylorhttp://www.blogger.com/profile/05614855403649622695noreply@blogger.comtag:blogger.com,1999:blog-2915042665565947443.post-72369783286076290642007-08-05T18:23:00.000-07:002007-08-05T18:23:00.000-07:00

please I want to know how to explain<BR/>this:<BR/> the average density of the earth is 5,515.3 kg/m³ (I saw it in Wikipedia) but the surface average density is less than that (I think is about 3 kg/m³). So de center must be much heavier, (they say is iron) but: <BR/>if the earth is hollow, the average density of the shield must be about 17 (I calculated it). so the inside of this shield must be

Franklinhttp://www.blogger.com/profile/10111819545149021717noreply@blogger.com