An interesting propeller picture via Global Nerdy:
The cheap CMOS sensor of an iPhone does not expose the whole thing at once, it scans from left to right. If you take a picture of something that moves very fast (like an airplane prop) you can get some crazy pictures out of it since each column represents a slightly different time.
The purpose of this note is to illustrate an important principle: things are always better with flash. Consider, for instance, the picture to the right with FLASH.
On January 13, 2008, the wonderful webcomic xkcd posted this cartoon.
Within hours, the comic rendered itself spectacularly inaccurate. Recognizing that it’s important that the public properly understand the dangers of this modern world, we provide here some more recent research. Continue reading…