What is the best discovery on Earth?

@Arnel_24 (155)
July 3, 2011 12:58pm CST
considering, there are many things that we could see on our planet,things that would make the World balanced., What do you consider as the best discovery that man has discovered.?
1 person likes this
4 responses
@mantis36 (4237)
• Philippines
7 Jul 11
the Einstein theory of relativity....
@Jolydan (12)
• Canada
4 Jul 11
I think he best discovery is Fire.. and take note this is the first invention of man
@Bannybanzie (1398)
• Philippines
4 Jul 11
I think the best discovery is that we have not discovered much of the earth yet. It amazes us on how beautiful the earth was made and how complicated it could be for humans like us. ;)
• Portugal
3 Jul 11
I think that best discover was transistor. Because everyhing that have energy use it. computers, mobile phone, television, every technology.. So basically everything useful for us nowadays use transistor.