Dreaming of world domination? Get started by building your own Solar Death Ray
The Solar Death Ray works by reflecting the light of the sun from 112
mirrors onto a single spot. Anything in the spot (the target) starts to get
hot.
…
Using some basic principles of Black Body Radiation, I estimate that the
Solar Death Ray can heat things up to between 500-600 degrees Celsius
(930-1100 degrees Fahrenheit) under good conditions
Several targets like a America Online CD, one rubber ducks and a mobile phone have already been eliminated and more target suggestions are requested
Via [Hack a day]