How does an electron microscope produce an image? | AskScience Blog

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Saturday, April 7, 2018

How does an electron microscope produce an image?

How does an electron microscope produce an image?


How does an electron microscope produce an image?

Posted: 06 Apr 2018 09:00 PM PDT

How does Atomic Force Microscopy (AFM) works inside liquid?

Posted: 07 Apr 2018 01:18 AM PDT

AFM produces better results in liquid as disturbance is less but how exactly does it work inside liquid.

submitted by /u/ab_messi
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Why is the center cube of a Menger Sponge removed?

Posted: 07 Apr 2018 01:23 AM PDT

Wouldn't removing the center cubes of each side leave another floating Menger Sponge in the middle, albeit 1/27 the volume of the original (after the first iteration)? If so, would there be infinite Sponges in each complete model, theoretically?

submitted by /u/dfk411
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How does soap remove germs from our hands better than just plain water does?

Posted: 06 Apr 2018 07:56 PM PDT

How Do we take Photos of Atoms Without affecting them?

Posted: 07 Apr 2018 01:44 AM PDT

Is the QM two slit experiment done in a vacuum? Why or why not? Does it matter?

Posted: 07 Apr 2018 12:28 AM PDT

Wondering if ambient molecules in air impacts outcomes.

submitted by /u/somebodyetc
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Can you measure or determine the amount of data a phone is using by analyzing the electromagnetic radiation being received and transmitted by the phone?

Posted: 06 Apr 2018 10:12 PM PDT

Would it make a difference if you knew the phone was using for wireless transmission, such as Wifi, 3/4G, bluetooth, etc.?

Is it possible to determine this without transmitting any signals, that is, operating only in a passive capacity?

submitted by /u/CelineHagbard
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How do neutron relectors work?

Posted: 07 Apr 2018 01:09 AM PDT

Since neutrons have no electric charge, I'd expect neutrons to travel straight through most stuff. How do different materials reflect neutrons?

submitted by /u/MmmVomit
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Making something radioactive seems simple enough nowadays. Is there any possible way to revert or neutralize radiation?

Posted: 06 Apr 2018 04:08 PM PDT

I just read this reddit post and was wondering... Maybe there is a de-radioactivator 2000 machine or something?

submitted by /u/iamsubs
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Are there telescopes, available for purchase, powerful enough to see the flag on the moon?

Posted: 06 Apr 2018 11:34 AM PDT

How do long-necked animals breathe?

Posted: 06 Apr 2018 03:09 PM PDT

Please, allow me to elaborate: I understand that they breathe in and out with lungs and a diaphragm, just like other vertebrates.

My question is, every intake breath anyone takes has some amount of stale air, which is air that wasn't completely expelled and never left the throat on the previous exhale. In short-necked animals this amount is fairly small and somewhat inconsequential.

If you're a giraffe or a brontosaurus, on the other hand, this seems like it would be a rather large percentage. Evolution hasn't granted any lung-based animals breathing holes closer to the lung (that I'm aware of, with the exception of whales). Do they solve this by simply having excessive lung capacity and taking much longer breaths? Are there other tricks that they do?

Thanks!

submitted by /u/quintus_horatius
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How do electron microscopes produce 3D looking images with depth and shadows?

Posted: 06 Apr 2018 11:26 AM PDT

If only electrons are being used, how are images like these produced. Images like this makes more sense.

submitted by /u/FilmingAction
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How exactly do natural springs form and what gives them the pressure to move water?

Posted: 06 Apr 2018 03:05 PM PDT

If my beard has black and ginger hairs, does that mean certain hair follicles produce specific colored hairs, or is it random and hair follicles can produce either?

Posted: 06 Apr 2018 10:22 AM PDT

Just found out I have ginger beard hairs, very curious.

submitted by /u/C_BearHill
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As someone lactose intolerant, do I get less calories from dairy foods since my body cant properly break it down?

Posted: 06 Apr 2018 06:18 AM PDT

Can you get burned by sunlight through a window?

Posted: 06 Apr 2018 12:44 PM PDT

How stable are our personalities?

Posted: 06 Apr 2018 09:04 AM PDT

Considering the literature on dissociative identity disorder, is having a split personality an all or nothing disorder or does everyone show varying degrees of personality dissociation?

submitted by /u/Dogfoodburger
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If the Great Pacific Garbage Patch is almost the size of France, why doesn't it show up on google earth?

Posted: 06 Apr 2018 09:14 AM PDT

Some articles I read said this garbage patch is located in between California and Hawaii. I have also read it is the size of Texas and nearing the size of France. So shouldn't something so big show up on maps such as google earth?

submitted by /u/LightBlindsAtFirst
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How to understand the potential energy curve for the Higgs field?

Posted: 06 Apr 2018 10:25 PM PDT

I'm reading a semi-technical book on the theory and discovery of the Higgs boson and its quantum field and the chapter that describes the mechanism for how it breaks symmetry is interesting but i want more information. Why does the Higgs field have a bump at the bottom of its potential energy curve? And why didn't it settle into the depressions around this bump initially? Finally why do these lowest potentials correspond to false vacuum states as opposed to actual zero values for the field? I might just have to keep reading but I'm curious

submitted by /u/37litebluesheep
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What are some ways animals have adapted to humans and civilization?

Posted: 06 Apr 2018 12:17 PM PDT

Why can you refuel a plane mid-flight, but you can't refuel a car while it's running?

Posted: 06 Apr 2018 02:12 PM PDT

How does a star produce a continuous spectrum?

Posted: 06 Apr 2018 09:08 PM PDT

If a star is made of mostly hydrogen and helium, how is it able to produce a continuous spectrum? Since H and He can only produce specific emission lines, my thinking is that it would have to be composed of every single element to produce all the lines along the spectrum.

submitted by /u/wasit-worthit
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