Though the digital data on the Internet resides on millions of interconnected servers, the net itself is just data transfer which takes place by electrons and radio waves. Russell Seitz, a physicist, tried to find the weight of the Internet based on this. His calculations, using Einstein’s famous e = mc2 formula, revealed that the mighty Internet weighs as much as a strawberry.
The email system invented by Ray Tomlinson at ARPA wasn't considered important. It was not a directive of the defence organization and Tomlinson was very hushed-up about it. He told a colleague "Don't tell anyone! This isn't what we're supposed to be working on." [more...]