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    Will a lightbulb inside a ceramic cube generate far infrared?

    No, I meant will the far infrared radiate from the outside of the tiled box in all directions? So what is the difference in frequency between a ceramic infrared heater and a metal element radiator?
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    Possible to have safe low density infrared leds in board?

    Is it possible to have an array of very low power near infrared leds where each one is so low power and spaced out significantly so you cannot look at them all at once and it is safe for your eyes? Or is it still a bit risky?
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    Will a lightbulb inside a ceramic cube generate far infrared?

    But will it radiate in the range of far infrared?
  4. V

    Will a lightbulb inside a ceramic cube generate far infrared?

    Would an incandescent lightbulb put inside a cube made of ceramic tiles effectively generate far infrared heat? For instance if you paint the inside with heat tolerant black paint.
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    Why are halogen ovens more efficient than regular ovens?

    Is it because the wavelength(s) given off is more effective at heating the air? Or is there another reason? If so will any light wavelength light bulb be able to heat the air in a house to a greater degree than others? Or will it only make .00001% difference?
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    Is it possible to stimulate a tourmaline crystal to release ions or far infrared

    I read that tourmaline crystals can release ions and far infrared in response to heating and cooling (temperature changes) or mechanical compression. Would it also be stimulated by an electrical signal, or would that be almost useless with a whole crystal chunk? Is this a project that would be...
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    Salt lamps - what effect would the salt have on the light from incandescent bulb

    Thanks, what happens to the light the iron absorbs, does it get re-radiated as a small amount of far infrared?
  8. V

    Salt lamps - what effect would the salt have on the light from incandescent bulb

    Thanks
  9. V

    Salt lamps - what effect would the salt have on the light from incandescent bulb

    What is the scientific term for the light wavelength(s) that a material allows to pass through it or blocks? I'll look at getting a prism just for interest, I hope it works with such an omni directional source. What wavelengths would you expect pure salt to block/pass? I assume it blocks the...
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    Salt lamps - what effect would the salt have on the light from incandescent bulb

    A salt lamp is a solid chunk of salt (with some minerals in it) with a hole drilled in the middle where an incandescent bulbs goes. So the light shines through quite a few cms of salt before leaving. The salt lamp appears to be a lower colour than the bulb would be by itself. What is actually...
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    Are deep red 660nm LEDS completely safe?

    No not grow lights. I think they use some red and some blue for grow lights. I just want red only. At least I hope I don't get grow lights because I don't want any blue. For this application I read red was better for night time lighting vs white which is what I have now. I would have just...
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    Are deep red 660nm LEDS completely safe?

    Thanks, yes I will put a heatsink on each one. I won't be looking at it or into it, but I want to make it fairly safe in case you did. Idealy I would have it overhead but I'll have to explore my options because I can't really build it into the standard light fitting so it might be high up in a...
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    Are deep red 660nm LEDS completely safe?

    Thanks. Would that wavelength be diffused with a standard fogged plastic diffuser? Or would it need more thickness?
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    Best wall power supply for automotive 12v 1w ioniser module

    So they will detect ions vs no or low ions.
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    Are there any dangers associated with ceramic coated reptile heating bulbs?

    Ok thanks, it's a shame I thought it would be efficient because it is coated with ceramic which I believed generated far infrared which was as fairly efficient heater, for water for example or anything composed mainly of water.
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    LED driver for my LED

    Thanks. When placed in an enclosed wood (seed germination) box how thick would the pine need to be to definitely block any dangerous ir rays?
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    Are there any dangers associated with ceramic coated reptile heating bulbs?

    OK thanks, I had planned to use it as an overhead heat lamp, do you think it would be effective or too far away to do much?
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    Are there any dangers associated with ceramic coated reptile heating bulbs?

    Ok thanks. So are they giving off the same wavelength as a stove heater?
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    Are deep red 660nm LEDS completely safe?

    Ok thanks. 5-10w overhead should be fine.
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    Electro Magnetic field biological effects - AC vs DC, current vs voltage?

    Thanks yes I understand there will be theories and the answer isn't crucial it's more a topic of interest where I want to hear the theories as well.
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