Solar Furnace Melts Rock

[RickS]

A graphic example of why you shouldn't point an unfiltered scope at the sun...

http://articles.mercola.com/sites/articles/archive/2010/12/15/solar-furnace-melts-rock.aspx

[mswhin63]

That totally ROCKS :)

[jjjnettie]

omg, look at the way he kept waving his hands around it. :screwy:
Keep yer hands in your pockets matey.

Thanks for posting the link, that was amazing.

[h0ughy]

good reminder for golden rule number 1 - never ever look at the sun without proper protection (solar filter)

[OzRob]

That's cool!! Just lucky I didn't have a magnifying glass that big when I was a boy. I would have vapourised those ants...:rolleyes:

[multiweb]

hehe...I was thinking the same thing. I was a real bada$$ with a magnifying glass too :wink2::P

[RobF]

Me too, until the day I was messing about burning holes in paper in dad's new car. Leaving the paper on the seat wasn't a good idea I discovered.

Never saw that magnifying glass again.......
(I'm probably lucky to still be alive)

[Waxing_Gibbous]

This thing was on telly a few weeks back. I SO want one (recent 'landscaping has unearthed many, many rocks). I couldn't believe the bloke was waving his hands around like that either. Frenchmen....tch! :)

[MrB]

All I got at that link was an advert asking me to subscribe before going any further. Couldn't see any way around it, other than subscribing.

[mswhin63]

Got the same too, only recent into maybe wont appear in the near future. very annoying.

[CraigS]

Hi Albert;

This is do-able .. gold reflects infrared radiation strongly.
According to Wiki, a single gram can be beaten into a sheet of about 1 square meter.
Handling it might be a problem though, and you still need to glue it onto something parabolic, (or similar), in shape.

Cheers

Cheers

[mswhin63]

wonder if gold leaf is workable for this application. Plenty in the art industry

[DJDD]

was this it?
http://www.youtube.com/watch?v=z0_nuvPKIi8

love the use of water to show the focus

and the cool safety specs...

[OzRob]

Yeap that's the one!!