A permanent archive of the Web--some 200 million sites' worth
By Rena Marie Pacella
Posted 10.31.2011 at 11:28 am 1 Comment
The purpose of the Wayback Machine is to copy and store the Internet. Since the San Francisco–based nonprofit Internet Archive created the database 15 years ago, browsing software called crawlers have captured 180 billion Web page snapshots from more than 200 million sites.
Five amazing, clean technologies that will set us free, in this month's energy-focused issue. Also: how to build a better bomb detector, the robotic toys that are raising your children, a human catapult, the world's smallest arcade, and much more.