46″ PARABOLIC MIRROR STEAM BOILER SOLAR POWER STEEL WOLL NANOPARTICE GreenPowerScience | Solar & Wind Products; View Hundreds of Solar & Wind Products Here!


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This is a big 46″ parabolic mirror with a 1M focal length. The lens can reach about 2700F max collection. Not 100% sure about those figures yet as a mount is still needed and the mirror flexes a bit. Superheating steel wool creates surface nanoparticles when the wool turns bluish in color.



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  1. Great mirror ! One problem with idea is constantly focussing moving sun on hot spot.

  2. i'm italian, so i ask you:
    can i cook pasta with it?

  3. Where did you get that mirror?

  4. Bugsy1000 says:

    Good one thanks for your hard work

  5. ali log says:

    I hv a question. Can we hv a steam generator that can cycle the water within itself, without the need to fill water again n again.

  6. There is a fairly simple method for adjusting focal length. I'd like to know how to make the mirror in the first place.

  7. Dan,While watching your video, I thought why not use your parabolic mirror to make a reflecting telescope?  I bet it would work great and with your expertise, you could do it.

  8. nice trick about heating wool ! I remember when I was young , a fist of dark tarnished silver coins instead of steel wool , to boil water in a pyrex beaker. the mirror was a tensioned rectangulare bathroom one which finally broked being too thick.

  9. Would it help if the glass was painted black on one side? That might stop the light from passing through.Good video and good luck.

  10. Telescope mirrors have to be accurate to a few millionths of an inch or about 1-1,000 as thick as cellophane. Your mirrors is one thousand times less accurate than required.

  11. How were you able to make such a big mirror?? I wanted to give a try… Thanks Dan!

  12. Good video, and information. Now, the question of the day is how can you produce enough steam and pressure to power a turbine generator, and use the cooled steam to produce purified drinking water from sea water in a large scale?

  13. Can be used as preheater if not boiler. :)

  14. Tony Hardy says:

    The long focal length could be excellent for making an array of them, as many as you can fit in an area side by side and still be able to point them at the same point. Ex; 4 of your 1 meter focal point parabolic mirrors pointing at the same jar. Then test to see how fast it boils, then later when you are prepared with a oil system, test oil in it to see how hot it gets, or keep oil pumping thru it to prevent damage if it goes to get too hot. lol Speed up the pumping, also the pump and oil need to be hooked to a radiator to cool it fast enough.

    But either way a person could just put up 4 of these with independent heat collectors on each focal point of the 4 mirrors and hook the fluid piping together mechanically in series, etc…will still add the energy to the liquid, but it will take more parts and space.

  15. I wonder how a mason jar would fare? After all they're designed to be under pressure in a pressure cooker. Not sure the psi capabilities. Maybe if you put a pressure release valve in the cap it would keep it from over pressuring.

  16. BBWulf says:

    When I was in 2nd Grade I invented and actually made a rolling parabolic oven and took it to school for a science project. I was only 7. Because of this and other things I ended up graduating high school by the time I was 11 🙂 But I did finish my PHD until I was 56 :(

  17. GroupMax1000 says:

    I used to have a 1/4 mile race car.. the gas tank in the trunk was a 5 gallon fuel cell.. it had a thin wire substance in it like your steel wool.. but the reason was opposite to what you are showing.. the wire in the fuel cell would not concentrate heat but rather disperse it.. so that even if a spark were to hit the gas, it could not catch on fire.. the product as I recall was called "Explosafe" and there were demonstrations… first putting this thin wool mesh in the tank would not displace the fluids.. hardly at all.. and 2nd was the disbursement of heat.. I would think your experiment would work better with tinfoil on the outside of your glass jar on the opposite side of the light rays to reflect light that otherwise would have traveled through the glass… in short I think the wire wool might be hurting your experiment by dispersing heat :)

  18. I think everyone should learn from this video.  In just case, the war will break out.  The EMP will kill electronic everywhere.  You have to follow this video…I guess.  I have to learn this video.

  19. Chris Carter says:

    Could try clear acrylic tube for steam generator

  20. Rvey Michael says:

    Hi. Any idea for solar concentrator coupled with thermoelectric as a power generator?

  21. Instead of steel wool, could you just use like a specially designed 'heatsink'/'radiator'/heat-exchanger, you get what I mean, finned steel, so you collect and disperse a high percentage of the heat?

  22. heating water in the presence of steel wool actually produces hydrogen due to the increased temperature and therefore increased rate of oxidization of the steel 
    and guess where it gets its oxygen 
    tesla experiment

  23. MIMIXC audi says:

    U can use this steel wool inside pop cans for solar air heater

  24. When designing these devices you need to keep track of some things.
    1) you need to know the ambient temperature of your system. You need this to account for heat transfer back to the surroundings.
    2) you need to know the initial temp of your system
    3) you need to know the final temp of your system – boiling temp is different at different elevations
    4) you need to keep track of the exact time it takes to raise the water to boiling.
    6) you need to know the mass of the water that makes up your system.
    7) you need to know the area of your mirror
    8) you need to have your mirror track the sun. 
    you could make a simple tracking device with a German equatorial mount from any telescope. One of those mounts should easily support the weight of your acrylic mirror. 
    Do all of this for me and I will run some calculations that can quantify the energy output of your heat collector. 

  25. Glenn Hough says:

    awesome trick.. wanna try that for my water bath.. 

  26. I saw your episode on Doomsday Preppers. GREAT INFO! Thanks. I will check out the website now.

  27. I will look on your web site how does it cost, looks very high qualty 🙂 

  28. lirim hasani says:

    can i use that for a telescope

  29. derek acala says:

    can we have a powerplant from this principle? i mean using this kind of mirror heat a boiler and produce steam that will drive a steam turbine?

  30. Hi,
    That could be a good idea if the steam tube is insulated as the steam would cool and condense as it travels down the length of the tube. If the steam volume is great enough it should work. The only problem I see is the down pipe's insulation solution. There are also new solar deep well magdrive pumps that can lift 200' foot to head at 500 gallons per day from a single 80 watt PV panel. Low pressure but the lift is completed to a tank.

  31. Gohan Lee says:

    please make video to learn us how to make a telescope mirror

  32. Juniortore1 says:

    Yea, like the first 5 second includes a fine example of Stratospheric aerosol geoengineering (SAG). The use of sulfate aerosols pumped into the sky. google it. Fucking kick ass lens tho!!

  33. Zenith Solar uses CPV and has no practical future compared to regular PV as the cost per watt is much higher. The 75% efficiency claims include warm/hot water. By placing regular PV panels under circulating water, efficiency jumps to 20%+, heat removed produces better current. The water is warmed equaling overall 50% efficiency. You could build 5 PV plants for the cost of one of theirs. Also true continuous mirrors like this one are 30% more efficient than square glass arrays like the Z system.

  34. pmryan25 says:

    Unambitious, I'd like to burst your bubble, for betterment of all. 75% Solar efficiency – it's been here, see Zenith Solar.

  35. Cerebral says:

    Not to burst any bubbles, but… solar panels only operate within a certain 'band gap' of light which is proportional to the amount of voltage you get. There are some companies that produce cells with layers of material each tuned to a different band gap, but they are more $ and are only 40%. The most cost effective solution I can think of is to have mirrors reflect more light onto a solar panels which would gather more light of the same band gap. Also filter out useless light to reduce heat…

  36. George Clay says:

    I build steam engnes as a hobby. I am also a member of a Historical society that restores Stationary Steam Engines and Steam Traction Engines. I also enjoy watching your videos.

    You seem to think that 60 lbs of steam is sufficient pressure to run an engine. Most engines in the 19 the century ran on more like 130 lbs of pressure. Late 19th and 20th century locomotives ran on more than 200 lbs of pressure.

    Many of your ideas are not yet ready for practical use, but keep on experimenting 🙂

  37. 786baqi says:

    Copper wool in the bottle for water purification????

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