Who uses glass plates?

I otherwise am in full agreement, but a glass plate seems like a terrible idea.

I also just learned they exist.

To add to the last bit: part of the post processing is taking advantage of the fact that celestial objects move so slowly they might as well be static.

Now, when cameras take pictures, sometimes there are tiny "blips" in the photo (for a myriad of reasons) which creates noise in the photo (slight colour irregularities; you'll see a lot of noise in low-light photography with your cell phone, for example).

But since objects in space don't really move at all over days/weeks/months/years (depending on what we're talking about) you can take as many photos as you want.

Aside: Even crazy long exposure photographs. With a computerized motor that matches the rotation of the Earth, you can take photos with exposure times of hours.

Then you put all those images into computer software that compares them all. If most of the images agree on a pixel, then it's probably "correct", so any "blips" of noise can be eliminated (or at least drastically reduced).

You can also use different lenses and filters to only look at specific frequencies of light one by one, then combine them all using computers. And do all the exposure and stacking techniques above to make the individual spectrums more clear.

Combine the above, and you can get incredibly clear photos, even with a backyard telescope (with the right tools and a lot of patience!)

Another thing I didn't see above is using multiple radio telescopes that are very far apart. Looking at some lower frequencies of electromagnetic radiation, they can effectively combine their images to make a "virtual" telescope that's way bigger than they are.

Which part? Microwaves heat food by causing the water molecules to vibrate.

An ice cube cools your drink by absorbing the heat from the beverage. Likewise, the plate being colder, absorbs the heat from the food that is generated by the vibrating water molecules.

This happens because the ceramic or its glaze is not completely radio-transparent. Many ceramics and glazes have metal elements in them, which absorbs microwave energy. Dishware marked "microwave safe" should not have this problem.

Just to piggy-back, basic first aid to quickly cool someone suffering from heat stress/exhaustion, use ice packs or cold, wet towels on the head, neck, groin, trunk and under armpits.

More info from OSHA

Peer pressure, yes, but also gullibility.

I was on a jury for a DWI case. Our initial vote was a 50/50 split. Evidence leaned toward a guilty verdict, but b/c the defendant refused a breath-test, not conclusive. Other tests were administered (like follow-the-finger and walk-a-straight-line), and their techniques were explained.

One juror, a teacher named Terry, was very loquacious and also convincing. He seemed to get stuck on a technical aspect of one of the tests, but also seemed to be overly enthusiastic about this. He said, "I just don't think the prosecutor proved his case." By the end of the 1st day, he had (singularly) convinced all but one of us to vote 'Not-Guilty'.

I'm nowhere near as vocal as Terry, but to me, the evidence we had indicated 'Guilty', and Terry's logic wasn't making sense. I'm not eloquent enough to have changed others' minds, but I wasn't buying Terry's arguments, either, and he knew this. We adjourned for the day.

When we resumed the next morning, Terry started off by saying, "I was thinking about it overnight, and I think the prosecutor proved his case, after all." Within just a few minutes, we had a unanimous 'Guilty' verdict.

It’s good to have goals

I'll be asking all my friends on discord I'll tell you what

I gotta know now just how Super I really am, this will determine the course of my life

Some plates get hot in microwaves, and shouldn't be used in them. Other plates don't absorb microwaves and stay cool.

The difference is mainly in the type of clay used to make the ceramic plates (there's also some types of plastic that shouldn't be used in microwaves, but that's another topic). Clays that contain a lot of iron oxide, which tends to make for a dark reddish-brown colour though that may be covered by glaze, are especially bad for microwaving. Plates made from such clay can get very hot, and in the process they absorb a lot of the microwave energy instead of letting it go into the food. Hence, the food doesn't warm up as much as you expect.

Microwaves sort of bounce around inside the oven, reflecting off the metal walls, until they hit something that absorb them. That something then gets heated up. Glass and some types of ceramic (porcelain) are transparent to microwaves, just like glass is transparent to visible light. So if the microwave hits such a plate, it just goes right through and bounces off the oven floor. That wave then has a good chance to hit the food.

Plates made from red clay with lots of iron oxide, or that are glazed with some color made with a lot of metal or metal oxides, are opaque to microwaves and absorb them much like black paint is opaque to visual light and absorbs it. If a microwave hits such a plate, it gets absorbed and heats the plate instead of having a chance to heat the food.

>I know we get them through massive telescopes…. But how do they capture images so far away? How do they work?

Actually, quite a lot of them are from very light telescopes - ones attached to interplanetary probes sent to explore the planets. Quite often these images are mosaics, stitched together from multiple pictures.

For sure, idk what the percentage is.

And I suppose heat shielding still adds to the weight and there's no way to ditch the extra shielding before you're air/spaceborne

Your blood makes a complete circulation three times every minute. This includes your extremities. I have always attributed the instant cool feeling to this fact coupled with the blood vessels close to the surface. It’s also the reason you can cool down really quickly by putting you hands in cold water in the summer time.

"it remains cooler" Lol wut? It's basic thermodynamics that something cool cannot transfer heat energy to something warm.

Dishware gets hot, even more than the food, if the ceramic or glaze contains metal elements, which can absorb microwave energy. Products marked "microwave safe" do not - they are transparent to microwaves. Clear glass is almost always non-absorbing, but many glass items cannot stand the heat from the Hot food.( More precisely, they cannot stand the stresses from uneven heating and cooling.)

TIL some people cannot do this on purpose

It's not. I spent the entirety of my youth being barefoot at every opportunity... all summer long, every summer. Never had any problems. Still go barefoot whenever possible and have fewer foot problems than when I wear shoes.

Don't overestimate how detailed they are. They're showing a lot of features, but those features are very, very large.

When you see swirls in the atmosphere of Jupiter, like on this page: https://solarsystem.nasa.gov/planets/jupiter/in-depth/

Be sure to look at the size comparison: those details you're looking at are the size of Earth. Something as small as, say, Alaska, you probably wouldn't be able to see, because the pictures aren't that detailed.

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You could be one now and not know it! Oops, I've said to much.

Let’s say 4 competitors all have 25% of market, selling laptops for $500 that cost them $300 to make. Now one cuts price to $460 so they’re making $160 instead of $200 per unit. But if they can boost their share to 32% of sales instead of the 25% they had, they’ll make more money overall.

Or even better, they’ve developed some sort of manufacturing advantage (efficient custom made to order rather than prebuilt configs, for example) that allow them to build each computer for only $270 instead of $300 so they’re not even losing per-unit margins.

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"Being barefoot" isn't innately unsanitary. though a lot of people might just not want to see your feet.

With that said, most people don't want your shoes all over the place, either.

And it'd absolutely be unsanitary to walk around barefoot outside. Because nobody really cleans that.

Some of what you see is long exposure photography, where the camera is attached to a telescope that moves with the rotation of the Earth. Some photography you see of distant galaxies, etc are not photographs, or are only infrared and the astronomers add false color later.

So you can search this sub for "how do cameras work" for more detail, but you need the TL;DR: that photography is literally "capturing light". And the more massive your... light capture device, the more light you're going to capture. So being a "massive telescope" really helps.

You know how you see long exposure images? That's a camera keeping the shutter open and absorbing more light as it streaks by.

These massive telescopes can keep the "shutter" open for ages, and can move around so they're pointing at the same patch of sky. That way get sharp images rather than streaks.

There's also no atmosphere in space to distort things.

Finally, a lot of post-processing happens after images are taken.

EDIT to add that for planets in the solar system, we actually send spaceships over to take up-close pictures.

Discounting cash sales is literally charging more for credit card sales.

So no it's not actually illegal because gas stations do it all the time.

The truth is this isn't a legal question but rather has to do with the service agreements the gas station signs with the credit card processor. For most stores, the CC processor forces stores to charge the same for cash versus credit cards. However they make exceptions for super low margin businesses like gas stations who literally cannot afford to pay the transaction fees and still make money on gasoline.