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top 200 commentsshow 500

[–]bobide 1607 points1608 points ago

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It should be noted that this image has been colorized as it is not possible to get a color image from an electron microscope.

[–][deleted] ago

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[deleted]

[–]InglorionBasterd 514 points515 points ago

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Yeah, the earth tones and reds make it look like the painted desert. Like Wile E. Coyote is gonna blow by on an acme rocket.

Pretty sweet image though.

[–]tehgreek 620 points621 points ago

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Like Wile E. Coyote is gonna blow by on an acme rocket

Done

[–]I_B_Trolling 603 points604 points ago

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Like Wile E. Coyote is gonna blow by on an acme rocket

or get smoked by some steel crack

[–]zaferk 76 points77 points ago

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He needs to look down first before he falls down.

[–]I_B_Trolling 342 points343 points ago

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You are correct & here is the correction

[–]IDangleFreely 41 points42 points ago

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Where's the picket sign?

[–]I_B_Trolling 92 points93 points ago

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A picket sign?, for the wise guys ._0

[–]USMCsniper 34 points35 points ago

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oh a wise guy eh?! nyuknyuknyuk

[–]somecircadian 1 point2 points ago

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We are very amused. More gifs immediately.

[–]arcais 1 point2 points ago

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I believe he also has a long neck extension that follows his body

[–]McKrafty 58 points59 points ago

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BEEP BEEP

Road Runner says,"MEEP MEEP".

FTFY

[–]hexmasta 8 points9 points ago

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Road Runner says,"MEEP MEEP".

The actor only says "MEEP"

[–]Khavos 11 points12 points ago

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IT'S SUPPOSE TO SAY MEEP MEEP! Sorry for cap, childhood speaking (:

[–]tiszack 1 point2 points ago

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You dont smoke crack. Crack smokes you!

[–]brotherbond 13 points14 points ago

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And the internet delivers. Thank you!

[–]jamesbondq 2 points3 points ago

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I was hoping someone in here would have already made a picture of a flea dressed like Evel Knievel jumping it on a dirt bike, but this is definitely just as good.

[–]toast_5933 1 point2 points ago

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Even got the shadow, nice.

[–]docxcallahan 1 point2 points ago

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My god thats fucking classic thanks for that

[–]formfactor 1 point2 points ago

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You sir did not disappoint!

[–]chili_cheese_dog 85 points86 points ago

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Meep Meep!

[–]InglorionBasterd 126 points127 points ago

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TIL what a real roadrunner looks like.

[–]Rizzpooch 50 points51 points ago

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Just to take this full circle: Why did they colorize it like that?

[–]hemlockecho 45 points46 points ago

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ACME Crayon Box only includes 10 colors.

[–][deleted] 89 points90 points ago

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Because 9/11.

[–]the_maleinator 7 points8 points ago

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Probably to maximize the contrast.

[–]poccnn 2 points3 points ago

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Those guys are all over New Mexico. Fast as hell. They eat lizards.

[–]Gnadsy 1 point2 points ago

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Does it meep?

[–]dancingthemantaray 58 points59 points ago

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They only paid me to say it once, then they doubled it on the soundtrack. cheap bastards.

[–]nihilation 15 points16 points ago

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what? that's it, we're boycotting warner bros.

[–]newtothelyte 22 points23 points ago

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Road Runner (Meepus Beepus)

[–]C-3PO 1 point2 points ago

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Or Tremors.

They're under the ground!

[–]NoctGent 161 points162 points ago*

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[–]muggzymain 121 points122 points ago

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(zoolander vioice) What is this a canyon for Ants!

[–]EarthToBrint 38 points39 points ago

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Earth to derek, there is no way an ant could live in here there's no orange mocha frappuccinos.

[–]Pong_Reb 27 points28 points ago

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Uh, Earth to Meekus, DUUUUUUUUUUH. I already knew that

[–]shcavez1 24 points25 points ago

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Earth to Brint, I knew the crack was 30 microns wide, I just didn't realize it was and artistic rendering right away

[–]EarthToBrint 25 points26 points ago

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Earth to Derek, the crack has to be at least three times that size to be artistically regooglized

[–]SpaceMonkey23101 4 points5 points ago

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Oh - Did you think I was too stupid to know what regooglizing is?

[–]cloudcloud98 6 points7 points ago

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WILL YOU GUYS JUST STOP IT ALREADY! Don't you think there is more to life than being really really, rediculiously funny? huh?

[–]johnyutah 21 points22 points ago

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It needs to be at least... 3 times bigger.

[–]Binkleberry 4 points5 points ago

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Yes ... he's absolutely right.

[–]JoFL0 6 points7 points ago

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I got really excited for the original image. Oh well, guess you can't win them all.

[–]TrepanationBy45 21 points22 points ago

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It's almost like it's supposed to look like some kind of grand canyon...

[–]chili_cheese_dog 100 points101 points ago

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[–]ConfusesUrNameLoudly 48 points49 points ago

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YOU LOOK NOTHING LIKE A CHEDDAR CHEESE LOG!

[–]fistymcbuttpuncher 12 points13 points ago

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You sir, are one of the better novelty accounts out there.

[–]ConfusesUrNameLoudly 17 points18 points ago

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I APPRECIATE THE COMPLIMENT, BartyMcFistPumper!

[–]IAmNotYourBoss 5 points6 points ago

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Ow...my ears hurt...and this is text!

[–]Ghastily 5 points6 points ago

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Really I thought this was potato.

[–]bonesjones 6 points7 points ago

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The way it's colored reminds me of the scenery from DBZ.

[–]nomalas 6 points7 points ago

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To make it look like the fucking grand canyon.

[–]Glasweg1an 11 points12 points ago

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Oh my.... someone needs a hug !

[–]zmoney92 1 point2 points ago

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You run an EDX, it uses xrays to determine element composition of your scan area, then colorize based on that info.

[–]rzyua 123 points124 points ago

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Same photo in grayscale.

[–]Identity_disorder 43 points44 points ago

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I don't see why the colouring was needed. I still went straight to cliffs when I saw this.

[–]Walking_Pneumonia 45 points46 points ago

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To be fair, you saw the other one first.

[–]Identity_disorder 38 points39 points ago

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So long as it's fair.

[–]t00n13 2 points3 points ago

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I think it looks like a chunk of baker's chocolate 8I

[–]BurnZeZ 1 point2 points ago

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Is this the original photo, or is it a grayscale version of OP's?

[–]balixtron 31 points32 points ago

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also it is not possible to get clouds

[–]brentose 43 points44 points ago

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I was wondering why they were having a nice sunny day on this microscopic piece of steel.

[–]chili_cheese_dog 2 points3 points ago

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The sun still shines on microscopic things. No?

[–]safehaven25 11 points12 points ago

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im just going to allow radiation to wash over my $500,000 lab equipment, what about you?

[–]Pank 10 points11 points ago

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yeah, like the guy with the 500,000 dollar microscope is going to get light on it, come on!

[–]RichardBachman 18 points19 points ago*

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How far are we from this technology?

edit This... this is why I don't "just Google it". I love Reddit. Ask what time it is and you'll be building a clock.

[–]shadytradesman 127 points128 points ago

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I believe it actually has to do with a limitation in the wavelengths of light. Light simply can't reflect off of items of that small in a way our eyes understand. Everything would look infa-red, if that.

I could be totally wrong though.

[–]oldaccount 131 points132 points ago

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I believe you are correct. The concept of colors simply doesn't exist when you are talking about things smaller then the wavelength of visible light.

[–]polysemous_entelechy 49 points50 points ago

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Correct. If that worked, you could observe it with an optical (regular) microscope.

[–]cyclenaut 61 points62 points ago

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im learning so much.

[–]BusinessCasualty 16 points17 points ago

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Look up DeBroglie wavelength if you're interested in the physics behind it!

[–]Cat_Fish 45 points46 points ago

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Look up

I got that far in the sentence, took a look at my ceiling, and gave up.

[–]Glasweg1an 18 points19 points ago

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In the words of a great Springfieldian garbage commissioner "can't someone else do it ?"

[–]TheoQ99 10 points11 points ago

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For we proud and lazy redditors will not do further research unless given a direct link.

[–]stufff 118 points119 points ago

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I call bullshit. I distinctly remember protons being blue and electrons being red in Chemistry. Try and explain that with your technobabble.

[–]mathfreak123 16 points17 points ago

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My protons were green. There must be a conspiracy!

[–]flcknzwrg 10 points11 points ago

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Metric protons are green, imperial ones blue. Or the other way round.

Your faith restored?

[–]mathfreak123 3 points4 points ago

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Good enough for me. Thanks!

[–]mattb1615 25 points26 points ago

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You are sort of correct. There is a limitation on how resolved details of something can be. Diffraction limitations usually can only give you a resolution down to about 0.2 micrometers. Your eye can interpret what it sees, but no matter how much you magnify something with a light microscope, the best you can do is approximately 0.2 micrometers resolution. This helps explain why. Scanning electron microscopes can get down to the nanometer range because the electrons act more like a particle than a wave. (I frequently use SEM in my graduate research.)

[–]MunkeyBlue 6 points7 points ago

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This first half of your statement was great until:

"the electrons act more like a particle than a wave"

In an electron microscopy, a high tension is used to accelerate electrons to a high velocity. These electrons have an effectively very short wavelength and thus can be used to resolve objects with a higher resolution than an optical microscope.

In an electron microscopy, the optics aren't as well made as light optics. As such, for EM resolution is limited by the optics rather than the wavelength of the electrons. This relates directly to the Rayleigh criterion for describing resolution (though for SEM it's a little more complicated to describe resolution due to the raster like magnification process).

[–]stellarfury 10 points11 points ago*

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Just to give some idea of "how bad" the EM optics are:

Actual resolution of a high-quality FESEM: 1 nm.

Theoretical resolution of 5 kV electrons in that microscope: ~0.01 nm.

Our poor control over electromagnetic lenses (compared to glass, anyway) makes the resolution at least 100x worse than it could be.

[–]beizhia 60 points61 points ago

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Color comes from the wavelengths of reflected photons. This microscope doesn't shine photons on the object, it uses electrons because it can get a better resolution.

Our eyes cant see an electron beam like a photon beam, and anyways electrons can't work this way in an atmosphere, so trying to determine color from an electron microscope is mostly meaningless.

[–]stellarfury 9 points10 points ago

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It's literally impossible. We don't perceive electrons as colored, and also they simply can't be collimated under atmospheric conditions.

However, it is technically possible to get a "chromatic" picture of an object from an electron beam. Different colors of light are just different energies of light - electrons also have different energies. In order to meaningfully separate them out, you have to do STEM (that's "scanning transmission electron microscopy," electrons go through the sample rather than bouncing off) with an EELS ("electron energy-loss spectrometer") unit attached to the microscope. It's basically the electromagnet equivalent of a prism mounted in the bottom of the scope, with its own detector. This allows you to separate out electrons that interacted with the sample by their energies - specifically, by the amount of energy they lost while interacting with the sample. You can then create an x-y map of the elements on a given sample, and if your resolution is high enough, you can pick out individual columns of atoms and identify what kind of atom they are.

Pretty freakin' amazing, but it takes about a month's worth of training and 12-36 hours per sample.

[–]mindbleach 12 points13 points ago

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Color changes within the human range of vision are somewhere between arbitrary and impossible at scales smaller than violet wavelengths. However, if we could capture images with higher-energy photons, e.g. x-rays through gamma rays, we could map arbitrary sections of spectrum to 'red,' 'green,' and 'blue' for a genuine false-color image.

Based on my understanding of how ionizing radiation interacts with metal, mapping x- through gamma-rays to R/G/B would make this steel would look like red jello with a yellow-white filling.

[–]AverageGirls 2 points3 points ago

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A microscopist named David Scharf has already used a multiple electron detector system to detect separate ranges of secondary electron energies that produce coloration in the images. They aren't the actual colors of the objects in real life, but it's still pretty cool.

[–]Milol 2 points3 points ago

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As a result of this, I'm ignoring the fact that this is steel, and pretending it is a giant confectionery item of some sort that I desire greatly to eat.

[–]chrysus 2 points3 points ago

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Was this colorized in a way that brings attention to real differences in the steel, or is it just colorized to look like a canyon.

TL;DR Is it colorized for science or for art?

[–]ElectronMicroscopist 2 points3 points ago

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Also of note, this is most likely taken with an SEM (Scanning Electron Microscope). This is the type most people are familiar with. It images via backscattering of electrons (electrons bounce off the sample and are recorded with a sensor).

The second most common electron microscope is the Transmission Electron Microscopes, which image on a 2 dimensional plane by shooting electrons through a thin object. Here is an image of Magnesium Oxide crystals I have taken with a TEM: MgO Crystals 66,000x Notice how you can see the cuboid structure, some crystals are above others but it is difficult to tell as the TEM only views a 2D plane.

I'm in college learning about the field of electron microscopy, and training to be an electron microscopist. Made an account to post in this thread. Usually lurk... thanks for making me make an account, Reddit.

[–]mikb2br 4 points5 points ago

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[–][deleted] 1 point2 points ago

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That sux. I thought there was a new type of art formed :(

[–]laurren 1 point2 points ago

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Looks like Earth Porn.

[–]egodeath92 1 point2 points ago

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WHY IS EVERYTHING A LIE?

[–][deleted] 1 point2 points ago

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They do that with electron microscope pictures of bugs.

[–]skankinstephen 1 point2 points ago

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sigh the color fill ins usually make those pics so neat.

[–]Griime 205 points206 points ago

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[–]Cat_Fish 28 points29 points ago

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All this did was make me hate mosquitos more.

[–]TheBlindCat 22 points23 points ago

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Minnesotan here, there is is no "more".

[–]smith7018 2 points3 points ago

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And strawberries? God, those things are hideous up close.

[–]cormega 51 points52 points ago

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Someone needs to make an r/EMporn subreddit!

[–]FalcoLX 123 points124 points ago

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So you can finally find your dick?

Sorry, that was a low blow.

[–]ghost_of_bb_king 7 points8 points ago

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there are not many jokes that i find funny on reddit, but that one was both very relevant and very tasteless. well played

[–]Saywutwho 31 points32 points ago

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[–]blasian1988 4 points5 points ago*

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I dont think that these are pictures from an electron microscope. EM images are black and white and also you can get the same level of magnification of these images with a compound light microscope. They are still pretty cool to look at though

[–]smel_bert 10 points11 points ago

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These made me feel itchy.

[–]blukkie 8 points9 points ago

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This made me feel rather... uncomfortable.

[–]zanyplebeian 5 points6 points ago

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Yeah, TIL how disgusting I am.

[–]DavidCo23 2 points3 points ago

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The original image was a submission for a contest that FEI (the EM manufacturer) out on. Here are the rest of the entries for the contest:

http://www.flickr.com/photos/fei_company/collections/72157626310530903/

[–]id416 11 points12 points ago

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[–]Bignut_Squirrel 341 points342 points ago

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Quick, someone repost it as "Grand Canyon tilt-shift"

[–][deleted] 190 points191 points ago

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[–]JeremiahRossini 204 points205 points ago

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Crazy.... that almost looks like a micro-crack in Steel through an electron microscope.

Then:

Someone should repost as "micro-crack in Steel through an electron microscope", quick!

You dirty sons of bitches!

[–]Deeger 52 points53 points ago

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Aaaand you've discovered the perpetual karma machine.

[–]Se7en_Sinner 21 points22 points ago

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I thought that was a cat running on a hamster wheel.

[–]Se7en_Sinner 6 points7 points ago

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The circle is complete.

[–]yourotherusername 5 points6 points ago

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First time I've upvoted a tilt-shift post.

[–]heavyfuture121 12 points13 points ago

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That was my exact thought!

[–]TheImproviser 37 points38 points ago

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Do you happen to know the scale of this?

[–]holyice7 19 points20 points ago

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You're supposed to apply a scale measurement to any images taken on an SEM if you intend to use them for scientific purposes.

Seeing how as whoever took this probably just said "That's pretty" and had someone add color, the scale probably didn't seem important.

[–]DiamondAge 11 points12 points ago

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It was probably taken for a competition. This image won the NSF competition this year.

[–]Supercluster 3 points4 points ago

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What is that?>

[–]profburnz 2 points3 points ago

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I sometimes don't use a scale for images like this. The reason is that with a high depth of field and the angle not all of the image would correspond to a scale bar. I would include the instrument mag. though.

[–]polysemous_entelechy 93 points94 points ago

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tiny.

[–]AlexZander 7 points8 points ago

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Not sure what the scale is but the article above says the crack is about .03mm wide.

[–]Bawlsinhand 1 point2 points ago

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the crack is 30 microns (0.03mm) across

[–]panaflax 98 points99 points ago

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just like beggar's canyon back home

[–]Forensicunit 32 points33 points ago

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I used to bullseye womp rats in my T-16 in there.

[–]Etab 15 points16 points ago

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Those are balls.

[–]LobsterTaco 7 points8 points ago

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This close, they always look like landscape

[–]Haasts_Eagle 90 points91 points ago

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Mind boggling.

[–]M7600 23 points24 points ago

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like... the earf.

[–]Rubix22 2 points3 points ago

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What if we're just like a crack in the steel fabric of the space time continuum bro.

[–]mankindislost 11 points12 points ago

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What is this?

A Grand Canyon for ants?

[–]Quo_Vadimus7 9 points10 points ago

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enhance to see nano-people on nano-donkeys taking a nano-tour.

[–]TheEngine 26 points27 points ago

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Why is there blue sky and clouds in the picture? It's throwing me off.

[–]skintigh 21 points22 points ago

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Didn't you know there were always clouds in electron microscope photographs? Also: colors.

[–]Imsomoney 6 points7 points ago

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Electron micrograph.

[–]DancingWithKafka 40 points41 points ago

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Fuck. I love science and shit.

[–][deleted] 20 points21 points ago

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I'm not a particular fan of shit, but hey to each their own.

[–]shea241 7 points8 points ago

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Nice background. filter > render > clouds

[–]Mark_Lincoln 6 points7 points ago

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Life in a fractal universe.

[–]eroome 26 points27 points ago

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if that is for real, that is amazing! reminds me of the grand canyon!

[–]Drunken_Economist 5 points6 points ago

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I'd visit that on vacation

[–]jxj24 4 points5 points ago

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Or a routine expedition.

[–]Moleman69 3 points4 points ago

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I like to think somewhere enormous creatures are looking at things like the grand canyon on Earth through their enormous microscopes and saying the same thing... Posting it to their enormous alien-reddit

[–]emarkd 5 points6 points ago

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Fantastic. Looks like a clay model.

[–]AdventureIsland 7 points8 points ago

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Havn't played wow in years but reminds me of durotar.

[–]Speakcannotproperly 2 points3 points ago

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[–]s13rian 2 points3 points ago

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Nice try, Grand Canyon

[–]lucardo 2 points3 points ago

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Just like beggar's canyon back home!

[–]EatableTrich 2 points3 points ago

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Less colored version for your convenience!

[–]always_creating 2 points3 points ago

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That looks just like our Grand Canyon! Wait...what if there is a tiny civilization that considers that crack THEIR Grand Canyon? Could being be looking at our Grand Canyon through an electron microscope and wonder if there is a tiny civilization who considers that THEIR Grand Canyon? Wait...

[–]Maaaagill 3 points4 points ago

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I could seriously look at these kind of pictures all day. The electron microscope pics of bugs are crazy - you see how wild compound eyes look, and how freaking hairy most bugs seem to be. So rad.

[–]iggle_piggle 1 point2 points ago

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Freaking beautiful.

[–]icioula 1 point2 points ago

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colorized image but very cool anyway !!

[–]thinsoldier 1 point2 points ago

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Are there any organisms small enough that if placed in this picture they would look like mountain climbers?

[–]MinecraftHardon 1 point2 points ago

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What is this?? A fault line for ANTS?

[–]PNWd 1 point2 points ago

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Chaos, how does it work?

[–]-miguel- 1 point2 points ago

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I only have a rudimentary knowledge of materials science, but are the layers colorized to show layers of ferrite and cementite?

[–]PhilAB 1 point2 points ago

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/Artists rendition

[–]ironinjax 1 point2 points ago

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This picture makes me feel insignificant. We are living in a tiny crack right now.

[–]Wazowski 1 point2 points ago

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Viewing this image will to more to misinform people than educate them. The colors, depth of field effect and background were added by an artist. The strata you can see isn't part of the material and definitely wasn't in the image captured by the microscope.

[–]IndianaJwns 1 point2 points ago

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Nice try, tilt shifted Grand Canyon

[–]Tezdoll 1 point2 points ago

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[–]daveringstaff 1 point2 points ago

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Rock Climber here. Must find shrink ray and climb this.

[–]jdlyndon 1 point2 points ago

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Fractal

[–]tacotrucker 1 point2 points ago

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Dat gap.

[–]howunosnowflake 1 point2 points ago

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Damn that's cool

[–]GeneticYeti 1 point2 points ago

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The level of intricacy in the universe never ceases to amaze me.

[–]BetelgeuseSC 1 point2 points ago

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Lies! We all know its the Grand Canyon.

[–]iama_XXL 1 point2 points ago

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I just wonder how big we are looking, like I realize this is a EM photo, but can that crack be seen with the naked eye? Interesting stuff regardless.

[–]hellibot 1 point2 points ago

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If only I had a micro-pipe for all of that micro-crack!

[–]uberalles2 1 point2 points ago

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I went hiking there last year. Almost made it down to the Colorado river.

[–]kabanaga 1 point2 points ago

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TIL: The Grand Canyon is made of Steel...

[–]perhapsanewusername 1 point2 points ago

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That's gonna to concentrate some stresses, son

[–]bashobt 1 point2 points ago

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[–]chadpatrick 1 point2 points ago

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BS ... this is a screenshot of Durotar.

[–]skraptastic 1 point2 points ago

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I had a friend who worked at Napa Pipe in California. He spent 40+ hours per week inspecting new made pipe for micro cracks. It was years ago, I cant remember if it was xray, or electron microscope...it he looked at this all day long, his job was awesome!

[–]iownachalkboard7 1 point2 points ago

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That... IS AWESOME!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

[–]A2Aegis 1 point2 points ago

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What if the Grand Canyon was a microcrack?

[–]PoweredByMiniWheats 1 point2 points ago

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This is in my biology book. It sincerely is a micro crack in steel.

[–]Mcawesomeville 1 point2 points ago

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wow thats pretty amazing like a mini landscape, to the bottom of the pile i go now!

[–]tover 1 point2 points ago

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funny how something that small can look like the grand f@£$%ing canyon

[–]plazmamuffin 1 point2 points ago

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Oh the thinks you can think...

[–]whatamidoinghere78 1 point2 points ago

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Grand canyon rocks

[–]gx1400 1 point2 points ago

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My first thought was a tilt-shift photo of the Grand Canyon

[–]wheresmyname 1 point2 points ago

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I remember feeling those cracks on my hammer and then I realized I couldn't really feel them because they are microscopic cracks.. I remember on my birthday my girlfriend of two days asked me if I had felt the earthquake. I said I didn't, and her immediate response was, "then why do you have a crack up your butt." I broke up with her a day later (not because of the joke) but I thought of that when I saw this. Good times brought up by what seems to be a irrelevant topic. Thank you for helping me bring up these memories :)

[–]whisker_mistytits 1 point2 points ago

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A humbling reminder of the recursiveness of nature.

[–]vocabulator9000 1 point2 points ago

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I remember measuring stress fractures like this from a pipeline that had ruptured. Spending many hours with the SCEM and the bakelite oven over Xmas holidays. Thanks for the cool image. Mine were all B&W.

[–]Rojan32 1 point2 points ago

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It looks like the path to Orgrimmar.

[–]SerDelta 1 point2 points ago

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The Grand Crackyon.

[–]matthank 1 point2 points ago

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Earlier today, it was a tilt-shift of the Grand Canyon. Same shot.

[–]nitrorev 1 point2 points ago

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this is why you don't drop carabiners or anything else that is made of metal and supports all your weight.

[–]majormantastic 1 point2 points ago

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This is bullshit. I slave my ass off for 40+ hours contact a week trying to get a degree in Materials Science and Metallurgy to have some jumped up photoshop junky try to turn my subject into something impressive!!! Bitch I look at metal under a microscope all day long and it is never that impressive. ಠ_ಠ

[–]Lamelaser 1 point2 points ago

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EMs are one not in color and two do not have skies above em

[–][deleted] 1 point2 points ago

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Lo, though I walk through the valley of the micro-crack...

[–]PenguinMonster 1 point2 points ago

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Posted this on FB to see if anyone could guess what it was. Plan failed. I go to an engineering school. Within 5 minutes, someone commented on how they wen't over that in their materials class on this very day.

Damn!!!

[–]existential_tits 1 point2 points ago

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I just don't understand why someone would colorize it like this. The photo clearly shows goethite/hematite strata. Why? Also, the cloudy sky. Is it to give the idea that micro and macro scales are not so different, or are we just being trolled with a canyon photo?

[–]lexissopro 1 point2 points ago

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This would be a good argument against christians claiming that beautiful scenery can't be naturally made...

[–]Mikeonourroof 1 point2 points ago

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I am dubious to whether or not this is real. I'd have thought an SEM should be in focus all the way through, and it's obviously not a TEM. Also the angle seems unusual, mind you, I've only looked at biological samples with electron microscopy.

Verification please?