By: tianli | 2011-03-31 | Training Earliest unverifiable history Unrideable replica made 1965-72 from the alleged 1493 Caprotti sketch. There are several early but unverifiable claims for the invention of bicycle-like machines read more
By: Joel Gray | 2012-03-07 | Electronics Millions of people around the world use them every day. Nearly every company and many jobs depend on it. Practically anything electronic that is in use today uses it. Computers have changed the way we live, and, now, most of us wouldn't know what to do without them. These electronic computing machines have advanced a lot since their beginning in the 1940s. If computers in the future improve as researchers say they will, the improvements since the 1940s will be nothing in comparison. read more