kohanson SG oh really? what if they are thrown in the air together? which will reach the ground first?
kohanson SG i was just browsing through this web http://www.howstuffworks.com reading through the articles.
kohanson SG hahaha, yah lah, these few days not much work mah, do 1 2 hours finish liao. the website is interesting.. alot of things i dunno.