I love fun web games that have neato results statements like:
The fireball is below the horizon. There is no
direct thermal radiation.
Whew…except…this is a real time, real outcome
widget to figure out how you would be affected in the case of an asteroid
strike. It takes into account the angle of the strike, the density of the
object, your distance from the impact, etc. For the true worrywort amongst you
from the good folks at the University of Arizona’s Department of Planetary
Sciences.