Define "the Internet"

This is a question. I don't know the answer to it myself so I ask you.

I know what the internet protocol is - it's as defined in RFC791. I, therefore, also know what an internet(work) is. I understand what we mean by the Internet, but I am unable to define it, with all my knowledge of networking and network protocols as a graduate student. As a consequence, I am also unable to define the World Wide Web, the definition of which depends on that of the Internet.

The best definition I can come up with is this:

"Internet is that inter-network which has the most nodes (hosts + gateways/routers) in the world that run the internet protocol (RFC791) to inter-connect."

Please contribute if you can provide a better definition.

Pick a lock

So I lost my mailbox key. Well, my roommate did. And he/we didn't want to spend $35 to get it drilled out and replaced. That's when I decided to pick up lock-picking as a hobby. http://www.wikihow.com/Pick-a-Lock is a great guide and it actually worked for me! Not on the mailbox though, but I can now pick one of my golden locks 10 times in 20 minutes, no kidding. And just with a pen-cap-clip and a straighted out zebra-pin.