Melting Cans with the Sun Solar Fresnel Lens Solar Death Ray

http://greenpowerscience.com/
FAQ "can you melt cans" This video illustrates the ease of melting and burning very thin metal. For some reason, a lot of questions came in about this over the past week. The thinner the material is, the less square area it has to dissipate heat collected. This lens is extremely powerful but would have a difficult time melting a 1 inch x 1 inch block of aluminum in open air.

Metal masses require a crucible to retain the heat collected or they act like a heat sink. This is why heat sinks are usually at least 3/16" thick. Also most metals become very shunt when molten ad reflect 50% of the light,

Category:

Science & Technology

Tags:

• GREENPOWERSCIENCE
• SOLAR
• FRESNEL
• LENS
• DOLARE
• DEATH
• RAY
• GREEN
• PLANET
• GLOBAL
• WARMING

[pkrska]

It's not melting.... it's disintegrating. Is there a way to make it go through a process to adjust the heat?

[GREENPOWERSCIENCE]

@pkrska The focal length. By moving the target closer, you work in a wider pattern and while the overall power is the same, your max temp drops over a larger area. For larger amounts of cans, a focal pattern of 4" would be about right for this lens.

[10gigabit]

Dan, can you re-focus the output light beam from the fresnel lens by using a magnifing glass to attain a tighter beam?

[GREENPOWERSCIENCE]

@10gigabit

PSYCHIC!! i just got some optically pure magnifying glasses. One of our next videos. The results are not as good as expected. Regular curved glass can shatter.

[madogblue]

do you wear welding goggles when doing this?

[GREENPOWERSCIENCE]

@madogblue Yes, they are required if you stare longer than 5 seconds.

[bigvoltron]

LOL @ 5:25 Dan Rojas is the man!!

[ephemere82]

could it be used to melt metals and store them better? i mean iron or Alu cans...

[YouTheory]

Lol Denise .. she should be in da show

[Bertziethegreat]

If you're melting soda cans, mash em down really good, then put a heavier chunk of aluminum on top of em to melt first.

[DigiParadise]

Don't let your cat go near that...

[myklpen]

@GREENPOWERSCIENCE : The can is not melting the Aluminium is oxidizing, that it burning, though not hot enough to maintain an flame...

[CrapPolice]

Dan you're making your viewers go blind!!!!!

[ThePJpatch]

I liked it when Denise passed by in the lens, she is walking up side down.

keep up the good work.

[SunsetRC]

Have you ever accidentally got your hand or arm underneath that thing?

[idan4411]

you can use this to make an aluminum smelter and cast your own aluminum parts!

BTW Hi Denise! we see you! LOL