jawshoeaw

jawshoeaw t1_j99lvnv wrote

Usually no. There are a few very rare cancers like mesothelioma that are only caused by one thing (asbestos) or the more common squamous cell carcinoma of the cervix which is almost always caused by HPV . But usually we have no idea because cancer is an accumulation of errors. One error could be a diesel truck that spewed exhaust in your face, another error could be a cosmic ray or a random event or a chemical in the water you drank

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jawshoeaw t1_j94wu1p wrote

Tried it on a blurry photo of my wife taken in bad lighting. Her teeth were originally a pixelated messy blur. AI somehow drew in her teeth. Everything else was very realistic and didn’t look AI’d to me . Then I realized I had uploaded a “live “ photo from an iPhone. The website showed the before picture as a blurry image when the best frame of the live image was exactly sharp and well defined. So it kind of faked the before and after. That was disappointing. So I turned off Live Photos and picked a blurry frame as the default. This time the AI was able to sharpen it up. But it didn’t look anywhere near as good as the best frame of the Live Photo

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jawshoeaw t1_j8h85r6 wrote

No it cannot quit posting this bs. Someday machines might do it better but “3D printing” ain’t it . At best it does the cheapest easiest part of home construction, the walls. Homes are expensive because they are now incredibly complicated and need to last for 100+‘years.

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jawshoeaw t1_j8gw48k wrote

First of all, Light doesn’t “slow down” because of absorption and re-emission. This is fairly easy to prove by simply choosing a wavelength of light that isn’t absorbed by that particular medium. It will still slow down or appear to do so. Interestingly you can in fact shoot single photons through a medium and they will do the same thing that millions of them do: change direction and appear to slow down. But what’s actually happening is that the photon is interacting with the electric fields of the atoms in the medium. A photon is still a wave and the wave is altered as it adds and subtracts with the electric fields around it. You can’t label a wave since it’s not a thing. Is the photon that comes out the other end the same photon? Sort of. But not really because light is really more imo a wave with some peculiar particle like properties. And it’s wave like properties are subject to addition and subtraction

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jawshoeaw t1_j5qdu0v wrote

Reply to comment by bikerlegs in Why does hot air cool? by AspGuy25

From the very beginning of the article on Wikipedia:

"Wind chill or windchill (popularly wind chill factor) is the lowering of body temperature due to the passing-flow of lower-temperature air.

It's a non-scientific term with no agreed exact formula and has nothing to do with inanimate objects.

Edit: Of course wind cools things - didn't mean to be nit-picking, I just don't like "windchill" because it's poorly defined. I mean there could be moisture on inanimate objects, that could be removed by dry air and cool further.. but there are good terms for those phenomenon such as evaporative cooling, convective, etc.

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jawshoeaw t1_j5qd1il wrote

Reply to comment by bikerlegs in Why does hot air cool? by AspGuy25

Windchill is a human experience and does not apply to physical objects like a computer. No matter how fast the wind is blowing over your dry computer, it cannot reduce the temperature below the temperature of the air making up the "wind". What it can do is reach an equilibrium temperature faster. At least in my experience (and wikipedia) this phenomenon is called "air cooling your computer" and not wind chill.

edit for clarity: wind definitely cools things off faster than no wind :)

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jawshoeaw t1_j5qcc6n wrote

Reply to comment by TommyTuttle in Why does hot air cool? by AspGuy25

That's correct. Windchill annoys me. It's often misused and confusing. There are Reddit posts saying things like "Here I am in Michigan in a T shirt, it's -60F today". but it's actually 0F with windchill of -60F. And yes, wind does not cool things below ambient unless they are wet (or unless the wind itself is bringing in colder air)

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jawshoeaw t1_j4efrmy wrote

It’s because we look at a 3D world with 2D retinas and our brains do a lot of processing to try and make everything look straight and rectangular. Which is nice if you are living in a box. But when there are no straight lines for reference, your brain can’t make sense of it. That nice “straight” horizon you’re looking at is actually a circle which stretches behind you. Your poor brain is trying to process this raw data projected onto our retina (which btw is also a portion of a sphere ) . The whole thing is a mind fck tbh. It forces you to accept that in many ways the “reality” we perceive isn’t real. I hesitate to even call this an optical illusion…we are experiencing a constant illusion and when we look up and see curved lines in space connecting the moon’s terminator with the sun we think something is broken.

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jawshoeaw t1_j3usbqt wrote

Interestingly there is a limit to the bloods ability to transport proteins and it’s viscosity. Too many cells make the blood too thick and too may proteins make the blood too thick. And having antibodies doesn’t work if you have like one molecule-there’s a minimum amount required to work. That said, I’ve never heard of someone maxing out via vaccines.

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jawshoeaw t1_j2cosd4 wrote

I could see nuclear powered hydrogen generators yeah. Batteries do have some dirty components but they are finding ways around them. And lithium may someday be sourced more cleanly, and if we’re dreaming , from seawater . I’m excited about lithium - sulfur (that’s still in the lab ). But right now they are already starting to build iron batteries and iron salt flow batteries for grid scale storage , and if they live up to the hype I could see wind/solar finally scale up to base load.

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