Russia was first in space, the United States was the first on the moon and Japan will now be the first nation to send a robot-astronaut to space that can communicate with humans.
If you have activated the option to store passwords in Mozilla Firefox, than you can easily look at all password you have entered when you were browsing websites.
Often in PHP you want the same block of code to run over and over again and instead of adding several almost equal lines, you can use loops to perform this task much easier.