So, there were the "0 block", then a few computers were calculating next blocks, and if one found a correct one it was added to the block chain (although it has no transactions in it) and it's owner got 50BTC. It continued for some time and then a guy bought pizza for 10k BTC. Is that correct? .

A few days ago a friend of mine, which is unfamilliar with computer science, cryptography and bitcoin at all asked me a question - "how was the first bitcoins created?".

It was easy to find on google - with the Origin Block.
However - what happened then? As I understand, new bitcoins are created every time a new block is created. And blocks are created with transactions. So where does the blocks came from, when there were no transactions? Or were there just 'empty blocks' with no transactions? If so, how often and when exactly were they created?

Thanks

The difficulty curve raises by 10% per week, or even faster. Two months ago I was thinking about purchasing a few 7950, because they would make a profit of a few BTC per month. For today they would barely return in a year period, even if the difficulty would stay on todays' level.
So as for me - I'm switching to LTC. I've tried this today, but I've overclocked my memory clock and the system hanged... and as I was doing it by a remote desktop, I couldn't access it by tomorrow morningm so I have no idea if it is more profitable than BTC for this moment

They "send their first orders yesterday" everyday . Guys, they will send it when difficulty raise a level when it would not be any longer profitable for them to mine on your miners.