Grant Thompson, a guy who got an Old Tv, unmounted its screen and mounted it on a frame to produce his homemade highly concentrated Solar beam producer which can produce a death ray of 2000 degree Fahrenheit temperature.
This temperature is just sufficient to melt plastic, glass, wood and even concrete in an instant. This temperature can also melt a stack to coins and blows caps off bottles. Watch this amazing video.
WARNING: This project should not be attempted without adult supervision and adequate training. Misuse, or careless use, of tools or projects may result in serious injury property damage, or death. Concentrated solar energy can start fires and cause personal and property damage. Concentrated UV radiation may cause blindness. Do not look directly at focal point without eye protection like welding goggles. Burning of metals like zinc, may release toxic gasses that can be harmful if inhaled. Extreme caution is advised. Use of this video content is at your own risk.
Grant Thompson Official website : http://www.thekingofrandom.com