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Category: Tech
Date: 11/24/10 02:00 PM

60 Responses to Rock Melting With A Solar Furnace; It`s Melty!

  1. Profile photo of DickenMcHunt
    DickenMcHunt Male 18-29
    1299 posts
    November 24, 2010 at 12:25 pm
    Link: Rock Melting With A Solar Furnace; It`s Melty! - The BBC visits a Solar Research facility and witnesses the incredible power generated by highly concentrated sunlight.
  2. Profile photo of Angelmassb
    Angelmassb Male 18-29
    15511 posts
    November 24, 2010 at 2:07 pm
    We are all doomed
  3. Profile photo of PfulHouse
    PfulHouse Male 30-39
    371 posts
    November 24, 2010 at 2:07 pm
    3,500 degrees...
    If you put your hand in there it would disappear.
    Your hand would literally evaporate.
  4. Profile photo of danky
    danky Male 18-29
    559 posts
    November 24, 2010 at 2:12 pm
    whattttttt thats crazy
  5. Profile photo of SPARTAKITTY
    SPARTAKITTY Female 18-29
    2123 posts
    November 24, 2010 at 2:18 pm
    It would be awesome to have one of these on my lawn to teach trick or treaters a lesson
  6. Profile photo of Greylights
    Greylights Male 18-29
    29 posts
    November 24, 2010 at 2:24 pm
    "If my hand went there, what would happen?"
    "Don`t"
    Sage.
  7. Profile photo of Dartamis
    Dartamis Male 18-29
    26 posts
    November 24, 2010 at 2:34 pm
    I need to build one of these
  8. Profile photo of lisalezah
    lisalezah Female 18-29
    255 posts
    November 24, 2010 at 2:41 pm
    I want to watch this series!
  9. Profile photo of ruthless1990
    ruthless1990 Female 18-29
    3001 posts
    November 24, 2010 at 2:54 pm
    mental
  10. Profile photo of mykunter
    mykunter Male 40-49
    2424 posts
    November 24, 2010 at 3:20 pm
    I want to burn ants with it.
  11. Profile photo of Axejst
    Axejst Male 30-39
    130 posts
    November 24, 2010 at 3:30 pm
    I want one of these. I would use it to ....well, I don`t know. But I WANT one.
  12. Profile photo of s8tan
    s8tan Male 18-29
    90 posts
    November 24, 2010 at 3:32 pm
    I`m totally putting this on my christmas list :P
  13. Profile photo of s0rd3dvis1on
    s0rd3dvis1on Male 18-29
    2389 posts
    November 24, 2010 at 3:41 pm
    it does make you wonder why renwable enrgy is so difficult
  14. Profile photo of megavidiot
    megavidiot Male 30-39
    901 posts
    November 24, 2010 at 3:44 pm
    cool!
  15. Profile photo of Angilion
    Angilion Male 40-49
    12390 posts
    November 24, 2010 at 3:47 pm
    It`s a good popular science series, one that hasn`t thrown the science part away. It helps that the presenters are qualified (only one of them doesn`t have a relevant degree and he has relevant experience).

    lisalezah...there are some illegal ways to obtain at least some episodes. Streaming TV websites have some. You could probably get them from P2P. Oddly, it`s not available legally at all. Not even in the UK except for a week after broadcast. No DVD, nothing.
  16. Profile photo of chimmeychang
    chimmeychang Male 30-39
    685 posts
    November 24, 2010 at 3:57 pm
    Nicoli Tesla...
  17. Profile photo of Angilion
    Angilion Male 40-49
    12390 posts
    November 24, 2010 at 4:03 pm
    it does make you wonder why renwable enrgy is so difficult

    It isn`t...if you have constant very strong sunlight 24/7 and huge amounts of spare land to build the solar power stations in.

    Since that can`t exist anywhere, renewable energy is difficult. Not entirely impossible, but difficult.

    There are CSP power stations operating today, but they can`t provide baseload power and they can`t compete with fossil fuel power stations for cost or size or generating capacity.

    We don`t control the sun. We don`t control the wind. We don`t control the sea. We need to be able to control our electricity output and we need a reliable controllable baseload.

    It`s possible, at least on paper, but it isn`t easy.

    The USA has vast amounts of spare land, so solar power could work during the day if you were willing to cover thousands of square miles with solar power stations. It would complicate power distribution, but it could be done
  18. Profile photo of nastyn800
    nastyn800 Male 18-29
    174 posts
    November 24, 2010 at 4:14 pm
    somebody find these guys some giant ants
  19. Profile photo of MountainBord
    MountainBord Female 18-29
    1894 posts
    November 24, 2010 at 4:29 pm
    haha more more more more!
  20. Profile photo of freddyferret
    freddyferret Male 40-49
    11742 posts
    November 24, 2010 at 4:38 pm
    That`s hot yo!
  21. Profile photo of ROK9
    ROK9 Male 18-29
    1834 posts
    November 24, 2010 at 5:04 pm
    now put that in a gun
  22. Profile photo of dude21862004
    dude21862004 Male 18-29
    768 posts
    November 24, 2010 at 5:13 pm
    Didn`t even show the rock melting. Just a bright light :/
  23. Profile photo of D3rAnG3d
    D3rAnG3d Male 18-29
    1598 posts
    November 24, 2010 at 5:26 pm
    That. Was. Awesome!
  24. Profile photo of SilverThread
    SilverThread Male 30-39
    3435 posts
    November 24, 2010 at 5:49 pm
    That`s a big magnifying glass. Sick!
  25. Profile photo of Geogypsy
    Geogypsy Female 18-29
    2546 posts
    November 24, 2010 at 6:12 pm
    Dearest ozone layer,

    I love you

    That is all.
  26. Profile photo of Fatninja01
    Fatninja01 Male 30-39
    25405 posts
    November 24, 2010 at 6:22 pm
    Thats just so cool! i want one!
  27. Profile photo of inaria
    inaria Female 18-29
    1515 posts
    November 24, 2010 at 7:18 pm
    you could burn a whole colony of ants at once with that!
  28. Profile photo of LtFurpie
    LtFurpie Male 30-39
    1014 posts
    November 24, 2010 at 7:34 pm
    Frigging ginger haters...
  29. Profile photo of Facehooker
    Facehooker Female 30-39
    68 posts
    November 24, 2010 at 7:44 pm
    @ 1:09
  30. Profile photo of handys003
    handys003 Male 50-59
    2402 posts
    November 24, 2010 at 7:47 pm
    This would be great where a supply of light is found all day Such as desert regions. Up in the artic regions it would only be good for part time season wise. It`s freaking cool though.
  31. Profile photo of BigMordecai
    BigMordecai Male 18-29
    94 posts
    November 24, 2010 at 8:00 pm
    Angilion has good points but I will remind people of loss of efficiency in several areas. One is in large grids, one is in maintenance another is in production. Its a simple economic fact that it becomes more expensive and costly to produce and more hard resources are required to use them as they are in less ideal areas. When we model this solar and wind power cannot be used on a large scale. Will it be usable in the future? Probably.
  32. Profile photo of Wai-Yu
    Wai-Yu Female 13-17
    246 posts
    November 24, 2010 at 8:13 pm
    so umm... can it make my chicken so it`s crunchy on the outside and juicy and tender on the inside?
  33. Profile photo of davymid
    davymid Male 30-39
    12151 posts
    November 24, 2010 at 8:46 pm
    Why did the voice of Grand Moff Tarkin in my head?

    "You may fire when ready"
  34. Profile photo of Angilion
    Angilion Male 40-49
    12390 posts
    November 24, 2010 at 8:47 pm
    BigMordecai:

    Transmission loss can be minimised by using HVDC lines. It`s not cheap to build them, but it is existing technology. Loss is ~5% per 1000 miles. You could build HVDC lines from massive solar power stations in hot deserts and patch them into the existing grid where needed.

    Production costs can be kept down by using simpler technology, e.g. CSP instead of photovoltaic or a mix of CSP and less efficient but cheaper PV.

    You`re not going to be able to power the USA from it, but it could be done on a large scale and produce a fair chunk of the required electricity much of the time, if you use a lot of land for it. Which will, of course, play hell with any local ecosystems. They`re still arguing over the Mojave desert.
  35. Profile photo of ardystic
    ardystic Male 18-29
    1083 posts
    November 24, 2010 at 8:51 pm
    where`s the melting rock? i only saw a smoking rock.
  36. Profile photo of LazyMe484
    LazyMe484 Male 18-29
    10443 posts
    November 24, 2010 at 9:29 pm
    "I see steel melt every day"

    ... wow, what do you do for a living?
  37. Profile photo of kribbe
    kribbe Male 18-29
    2006 posts
    November 24, 2010 at 9:58 pm
    @lazyme: perhaps he knows how to weld stuff
  38. Profile photo of LoofahBoy
    LoofahBoy Male 18-29
    3302 posts
    November 24, 2010 at 10:00 pm
    How can we weaponize this?
  39. Profile photo of Linkenberger
    Linkenberger Male 18-29
    1164 posts
    November 24, 2010 at 10:11 pm
    No Wai-Yu, the only thing that is known to do that is a deep fryer.

    Or some mad baking skillz.
  40. Profile photo of LionHeart-72
    LionHeart-72 Male 18-29
    521 posts
    November 24, 2010 at 10:19 pm
    Aww... too short. I wanted to see more stuff melt.
    Oh and anyone know what this is for?
  41. Profile photo of sylphies
    sylphies Female 18-29
    282 posts
    November 24, 2010 at 10:26 pm
    @LoofahBoy Giant Magnifying glass. IN SPAAAAAAAAAAAAACE!
  42. Profile photo of Djarum
    Djarum Male 18-29
    307 posts
    November 24, 2010 at 10:35 pm
    Time to make a new YouTube show, "Will this melt?"
  43. Profile photo of Arvz
    Arvz Male 18-29
    236 posts
    November 25, 2010 at 12:30 am
    @LoofahBoy

    I think the Greeks did it once. Archmides had the idea of using Mirrors to set aflame incoming ships :)
  44. Profile photo of Angilion
    Angilion Male 40-49
    12390 posts
    November 25, 2010 at 12:33 am
    "I see steel melt every day"

    ... wow, what do you do for a living?

    He makes things. If you want a one-off machine to do something, especially for a TV program, he`s the man for the job. His background is aeronautical engineering, but he`s mainly a maker of things. He does a lot of work with metal, so that`s where he sees steel melt. Sort of like the Mythbusters people with more welding.
  45. Profile photo of watbid
    watbid Male 40-49
    2 posts
    November 25, 2010 at 12:44 am
    @LionHeart. It`s from a show `Bang Goes The Theory`.
    Clicky here
    Full Vid might be there, but it`s a very good show.
  46. Profile photo of Angilion
    Angilion Male 40-49
    12390 posts
    November 25, 2010 at 12:51 am
    Oh and anyone know what this is for?

    Experiments into high temperature conditions. It`s an efficient way to generate extremely high temperatures and rapid changes in temperature. They can rig up various conditions around the furnace, so you can answer questions like "what happens if this material is heated by 1000C in 1 second in a vacuum?".

    The one in the video is one of the very small ones.

    The main one is outside. It`s about 200 times as powerful.
  47. Profile photo of SvampeBob
    SvampeBob Male 18-29
    3076 posts
    November 25, 2010 at 1:12 am
    HELL yeah science FTW!!!
    @Djarum pointless the answer is yes it will melt except for what chuck Norris and C. Dale Petersen touches
  48. Profile photo of Jonno22
    Jonno22 Male 18-29
    55 posts
    November 25, 2010 at 1:57 am
    ....and then someone builds it into a weapon.
  49. Profile photo of slab-of-rage
    slab-of-rage Male 18-29
    769 posts
    November 25, 2010 at 4:21 am
    Bang Goes the Theory is an AWESOME show, (plus has the cutest scientist in the world on it) but was anybody else watching this and hoping they would bring in some gigantic irradiateed ants like in `Them!`?
  50. Profile photo of TalcumX
    TalcumX Male 50-59
    561 posts
    November 25, 2010 at 5:18 am
    spambot
  51. Profile photo of SebastianLam
    SebastianLam Male 13-17
    730 posts
    November 25, 2010 at 9:25 am
    That`s awesome
  52. Profile photo of pumba62
    pumba62 Male 40-49
    1018 posts
    November 25, 2010 at 9:37 am
    hey buddy got a light? imagine the energy you could produce using this to heat water and it could be used as hot water heater or power generator .....wow how come we aren`t using this on Mass production or plant situations ?
  53. Profile photo of k-two
    k-two Male 40-49
    122 posts
    November 25, 2010 at 12:01 pm
    @pumba62: This is being used in power plants, and has been been for a long time. It`s not that easy (or cheap) though, because the Earth rotates and you need to keep track of the sun with the mirrors.
  54. Profile photo of Djarum
    Djarum Male 18-29
    307 posts
    November 25, 2010 at 1:41 pm
    @k-two, No, keeping track of the sun`s position isn`t that hard. The equipment to any commercial generator is the hard part with expenses, because no one wants to take a risk loaning you money on an iffy venture.
  55. Profile photo of W2
    W2 Male 13-17
    244 posts
    November 25, 2010 at 2:12 pm
    sunhax!
  56. Profile photo of Angilion
    Angilion Male 40-49
    12390 posts
    November 25, 2010 at 3:04 pm
    hey buddy got a light? imagine the energy you could produce using this to heat water and it could be used as hot water heater or power generator .....wow how come we aren`t using this on Mass production or plant situations ?

    People are. It`s the CSP (concentrated solar power) that I referred to earlier. It`s used to generate electricity the same way that most power stations do it - by boiling a fluid and using the steam to drive a turbine.

    Making a very small area very hot is not the same thing as boiling fluid on a huge scale, though. That`s much harder and much less dramatic. You need to elevate the tank so that more rows of mirrors can focus on it over the top of the row in front of them, which quickly leads to unfeasibly tall towers. 380ft for an 11MW tower at the moment and there`s not very much scope for improving on that.
  57. Profile photo of Angilion
    Angilion Male 40-49
    12390 posts
    November 25, 2010 at 3:11 pm
    The other problem is the amount of land used.

    California is a good place for this sort of thing - lots of strong sunlight, lots of land that isn`t already built on, lots of "green" frenzy.

    So they`re planning on a record-sized CSP power station.

    It generates 370MW, which makes it a small-medium power station.

    It covers 3400 acres.

    It damages or destroys fragile ecosystems.

    This sort of thing is part of an answer, but it`s not the magic wonderthing some people make it out to be.

    Details and a picture of a small-scale CSP tower in Spain

    Good looking power station, though.
  58. Profile photo of Angilion
    Angilion Male 40-49
    12390 posts
    November 25, 2010 at 3:14 pm
    Oh, and the cost per watt is a couple of times as much as it is for coal/oil/gas.

    Fancy your electricity bill doubling? Tripling?
  59. Profile photo of Angilion
    Angilion Male 40-49
    12390 posts
    November 25, 2010 at 3:27 pm
    On the plus side...if you look at the numbers, it`s possible on paper to meet the entire world demand for electricity a fair few times over with CSP blanketed over deserts.
  60. Profile photo of tuapui
    tuapui Male 18-29
    94 posts
    November 26, 2010 at 4:34 am
    whoaaaaa.........


    .....it`s a double rainbow!

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