Having just completed my annual science fair with my students, I find myself incredibly relieved that none of them discovered this video when deciding upon projects.
This guy (who thankfully seems intelligent, reasonable and safe) has managed to create a laser from the parts of an old television and the power of the sun.
The man essentially melts metal and sets fire to concrete with nothing more than a television screen and the sun.
Not something I’d want my students to ever attempt, but just the kind of thing that you might want in the event of an apocalypse.
