• 28 Posts
  • 849 Comments
Joined 8 months ago
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Cake day: April 14th, 2025

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  • Okay J-Lo…I gotta go to a fancy party covering my penis in see thru cellophane. Purple color crotchless pants. Everything else is blue jeans but the cellophane covered crotch. You can totally see my penis jumping and jiggling around in there, but not enough to have full confidence of actually having seen it.

    To the sewing machine!







  • Yeah its pretty simple yet very much not trivial. You can get images that are relatively fine by just making one from cardboard even. All you need is 4 mirrors. Two pairs for one side and two for the other. The non trivial part is how to fill the whole sensor frame and what specific angles to use for your specific lens. I’m using a 40mm lens full frame. 35mm can see the inside of the adapter so that’s not good. It gets worse with the wide lenses on your phone, but you can still get an image you can crop. And its its really freaking cool to see your kids and family in 3D on your phone on a finished image. Unfortunately my family runs from the camera and doesn’t get the 3D effect at all…and doesn’t even want to try. But whatever. Maybe one day when I’m long gone, one of their kids will find an old rusty SD card and discover the awesome thing that 3D is. I don’t understand why all the 3D headset makers haven’t jumped on this with a standard…simple, have all new phones get 2 cameras, and then create the software to take the images or video. Finally have that video in a standard format for all viewers. There’s plenty of smart people that can do this.

    Oh and yes, you can do 3D video and it kicks wide angle viewed video so so much. It’s phenomenal to watch my kid slide down a slide in 3D. I know it sounds stupid but man…the possibilities for the right open minded community are endless.




  • You guys need UVB LEDs or fluorescent lamps.

    Peak Efficiency: Studies, often using skin samples (in vitro), have shown that wavelengths in the very narrow band of approximately 293 nm to 297 nm are the most effective at triggering this conversion.

    In vitro studies have shown that vitamin D3 production increases in a dose-dependent manner. Effective doses used in studies on skin samples include:

    0.75 MED (approximately 11.7 mJ/cm2)

    1.5 MED (approximately 23.4 mJ/cm2)

    3 MED (approximately 46.8 mJ/cm2)

    And the goal is 1MED.

        One study that achieved vitamin D synthesis in in vivo (rat) testing used a commercial UVB-LED system installed at 1.5 meters and an irradiance of 10.67 mW/m2 for general indoor lighting.
    

    Another device designed for supplemental use found that, at a distance of 20 cm, an exposure time of 33–40 minutes could achieve the daily recommended vitamin D synthesis (400 IU).

    A different device, using a broader spectrum (UVB fluorescent lamp), found optimal production at a distance of 14 cm with 10–15 minutes of exposure.