Melting Steel with Sunlight! (w/ Video), page 1
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reply posted on 12-10-2009 @ 04:37 PM by Scooby Doo
reply to post by clever024


Yeah that's a good point. Especially having the abillity to produce heat and/or energy that can melt steel, I am suprised they have not found a way to supress and therefor retain that energy.



reply posted on 12-10-2009 @ 04:47 PM by EnlightenUp
reply to post by Scooby Doo


en.wikipedia.org...

I know someone working on a new project in the desert southwest where they use molten salt to store energy collected during the day. It uses mirrors to concentrate the energy like what the video shows but on a larger scale.


reply posted on 12-10-2009 @ 07:25 PM by ALLis0NE
reply to post by DaMod


Or better yet, heat ocean salt water into steam, and then collect the steam, and then bottle it and drink it.

....droughts.....


reply posted on 12-10-2009 @ 07:29 PM by Scooby Doo
Originally posted by ALLis0NE
reply to post by DaMod


Or better yet, heat ocean salt water into steam, and then collect the steam, and then bottle it and drink it.

....droughts.....


Thats not a silly idea at all. We have so many resources with great potential, and we never see them being used.


reply posted on 13-10-2009 @ 04:48 PM by billybob
reply to post by darklife


mythbusters couldn't get a hundreds of pounds of thermite to melt through a truck, but brainiacs melted through 4 inches(two on top, two on the bottom) thick of steel safe, plus a pile of coins in the safe with a small bucket of thermite.
i think the mythbusters are overrated, and perhaps, something more sinister: DISINFO ARTISTS!!!
or maybe the english are just better at science.



anyone fancy a nice cuppa?

[edit on 13-10-2009 by billybob]


reply posted on 13-10-2009 @ 06:11 PM by Udo Hohnekamp Lux.
The system is over two thousand years old, attributed to Archimedes
(around 215 BC), who is said to have inflamed Roman battleships that
attacked besieged Syrakus, with an array of polished shields focussed
on the sails.
See www.mlahanas.de...

The authenticity of the Burning Mirrors of Archimedes have for centuries
been a topic of controversy.

The efficiency of a multitude of mirrors focussed on sails or metals has
been proven. One of those researchers has described his experiments
in 1747 in his "Memoires de Paris".
He melted tin at a distance of 20 feet with 45 plane mirrors 6x8 inches,
silver with 117 of them that also heated iron red.
He inflamed wood at 200 feet, melted tin at 150, lead at 130, silver at 60
feet, increasing the number of mirrors.
In that time many mirrors up to 3 1/2m diameter were produced for
professional melting.
You still can see one of 3 feet diameter with a focus of 30" in the Royal
Cabinet of Paris, which was able to even vitrify within seconds the densest
metals along with the earth, the stones, and the pan.
A German school test in 2002 with 500 pupils, holding concave mirrors of 45x45cm each within a 108° angle, set a sail at a distance of 50 m on fire, although the Sycilian sun is by far hotter.

Foreign aid is already sending sun-reflecting cooking dishes to the Third
World.


reply posted on 13-10-2009 @ 06:23 PM by ALLis0NE
reply to post by darklife


The problem with Mythbusters is that they were trying to light something on fire that was several feet away (more than 10 feet). They couldn't get it to work because it would require the ability to change the focus of the beam on the fly. Also, because of the atmosphere, the intensity of the beam would decrease with distance. They also weren't allowed to use modern mirrors, they had to use polished metal.

In the O.P.'s video, they have a short and fixed distance that never changes. This means they can focus the beam with precision. They also had the technology to change the focus if they wanted (Mythbusters didn't).

Mythbusters didn't bust the death ray Myth, because it IS possible to melt things with the Sun. What they DID bust was someone having this tool on their boat back in the days when they didn't even have modern mirrors, they only had polished metal plates.





[edit on 13-10-2009 by ALLis0NE]
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