I’m an electrical engineer living in Los Angeles, CA.

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Cake day: June 17th, 2023

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  • Ten movies streaming across that, that Internet, and what happens to your own personal Internet? I just the other day got… an Internet was sent by my staff at 10 o’clock in the morning on Friday. I got it yesterday. Why? Because it got tangled up with all these things going on the Internet commercially. They want to deliver vast amounts of information over the Internet. And again, the Internet is not something that you just dump something on. It’s not a big truck. It’s a series of tubes. And if you don’t understand, those tubes can be filled and if they are filled, when you put your message in, it gets in line and it’s going to be delayed by anyone that puts into that tube enormous amounts of material, enormous amounts of material.












  • ooterness@lemmy.worldtoScience Memes@mander.xyzstrobe party
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    8 months ago

    Strictly speaking, you are correct. The key assumption for my statement above is that both objects are black-body radiators.

    In practical terms, it still ain’t happening when the light source is a bunch of fireflies.

    Aside: Lasers are a really weird case. The population inversion required for stimulated emission is basically the opposite of a classic thermal equilibrium. By some definitions, they are so hot their “temperature” wraps around to negative (i.e., less than zero Kelvin). That factoid took me a while to wrap my head around.


  • ooterness@lemmy.worldtoScience Memes@mander.xyzstrobe party
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    8 months ago

    Unfortunately, this idea isn’t going to work.

    Lenses and mirrors can’t focus a diffuse source to a sharp point. They are also reciprocal; any light that can move one way through an optical system can also move the other way. As a result, you can’t use a lens or mirror to heat something beyond the temperature of the light source. The net flow of energy is always from the hot thing to the cold thing.

    For the sun, that limit is almost 6000K, so you can do some damage. For fireflies, not so much.