captology ...

... or how Facebook persuaded its users to click on ads.




Captology at wikipedia
Captology at Stanford
Psychology of Facebook

Mike



I don't know if CIP is still reading Dark Sun, but I thought this video of the Ivy Mike shot might be interesting:
It shows only the first milliseconds and therefore not the usual mushroom cloud.
Early on one can see lightning triggered by the explosion.
The bright dots are actually vaporized pieces of the 80t cooling device.
The size of the fireball at the end of the video is approximately 5km.

added later: Some more information about the first milliseconds of nuclear explosions and a picture of Teller light.