Parabolic mirror (3)
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Solar "Death Ray" PARABOLIC MIRROR REFLECTOR 37" SUPER STRONGby GREENPOWERSCIENCE357,362 views- 0:20
Solar Stirling Engineby stirlingfreak465,996 views
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3D Mirage Hologramby Energyfield76,303 views
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Parabolic mirror (2)by jensjacob24,766 views
- 1:46
Solar "Death Ray" PARABOLIC MIRROR 55.7 PARABOLOID STEAM GENERATOR Concaveby GREENPOWERSCIENCE726,517 views
- 4:34
How to Clean your Telescope Mirrorby OpticWaveLabs35,273 views
- 3:22
Parabolic Solar Reflectiorby dparham67,717 views
- 0:34
Balcony Solar Cookerby ajaychandak17,682 views
- 2:52
Infinia Stirling Solar Generatorby ecoparity97,251 views
- 0:37
Mirage Hologramby tonyb84177,649 views
- 0:30
parabolic mirror making steam from solar energyby BMCBrady15,022 views
- 0:31
Parabolic Antenna パラボラアンテナby ishtaek8313,847 views
- 0:24
Parabolic Solar Reflectorby dparham3,110 views
- 1:17
Mirage 3Dby dmitrek118,315 views
- 2:24
Parabolic mirror solar collectorby omegalab6,181 views
- 2:08
STIRLING ENGINE SOLAR POWER PARABOLIC MIRROR ELECTRIC GENERATORby GREENPOWERSCIENCE331,589 views
- 0:39
Radial engine motorcycleby jensjacob864,449 views
- 8:16
Mirror parabolic dish testsby gilbondfac32,914 views
- 0:45
Dual Axis Sun Trackerby SMvideo144,192 views
how big was this mirror, is it hot enough to melt sand
Ferroscene 3 years ago
Its reflecting surface is about 275 mm in diameter.
It will heat a red brick enough to create a black glasslike molten spot.
I did try to heat sand inside a small glass test tube. It didn't work though. Maybe because the sand was not dry enough and maybe the glass absorbed or defocused the spot a bit. I also think glass might have transported heat away from the sand as it cracked quite quickly.
jensjacob 3 years ago
Gotcha, back in NH I had a couple buddies that were CNC operators. One made me a throttle body adapter for my car with his spare time... Very nice man, Lots of time polishing? What's the distance of the focal point?
my83merc 4 years ago
It is made with a diamond tool and do not need any polishing after machining. I described the mirror along with my video named :
"Parabolic mirror collecting sun (1)"
It's nice to know people with the right machines :-)
Best regards
JJ
jensjacob 4 years ago
awesome mirror, was it pre fab, or home made?
my83merc 4 years ago
It is 'homemade' in the sense that I borrowed some time during a weekend on a precision cnc lathe that I operate at my work.
jensjacob 4 years ago