Author Topic: Photo of a single atom  (Read 2154 times)

Photo of a single atom
« on: February 14, 2018, 11:49:58 pm »

(click through to the article, then click on the photo for a somewhat bigger version)

A very high resolution lens, to show a single atom  ;)

Kim

  • 2nd in the world
Re: Photo of a single atom
« Reply #1 on: February 14, 2018, 11:57:55 pm »
 :o

Best pale blue dot since Voyager.   :thumbsup:
To ride the Windcheetah, first, you must embrace the cantilever...

Re: Photo of a single atom
« Reply #2 on: February 15, 2018, 01:05:46 am »
It's impressive, but technically, that's not a photo of a single atom - it's a photo of the light emitted by the atom as its electrons shuttle between energy states under excitation by the laser.  ;)

If you actually want to resolve individual molecules, or even atoms, you need a GBFO electron microscope:

http://physicsworld.com/cws/article/news/2008/jul/16/electron-microscope-sees-single-hydrogen-atoms
https://motherboard.vice.com/en_us/article/8qxe7z/this-microscope-can-see-down-to-individual-atoms
We've all heard that a million monkeys banging on a million typewriters will eventually reproduce the entire works of Shakespeare.
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Re: Photo of a single atom
« Reply #3 on: February 15, 2018, 01:43:38 am »
You could equally say that a photo of a star is not actually a photo of the star, but a photo of the light emitted by the atoms of the star as they reradiate light absorbed from deeper within the star.

T42

  • Gaulois réfractaire
Re: Photo of a single atom
« Reply #4 on: February 15, 2018, 09:04:24 am »
Yebbut the atom is being stimulated externally; the star does it all on its own.
I've dusted all those old bottles and set them up straight.

Jaded

  • The Codfather
  • Formerly known as Jaded
Re: Photo of a single atom
« Reply #5 on: February 15, 2018, 10:47:41 am »
Rule 34 strikes again.
If you don't like your democracy, vote against it.

Kim

  • 2nd in the world
Re: Photo of a single atom
« Reply #6 on: February 15, 2018, 02:08:33 pm »
Yebbut the atom is being stimulated externally; the star does it all on its own.

Pretty much all photographs are of light emitted by atoms stimulated externally...
To ride the Windcheetah, first, you must embrace the cantilever...

Tim Hall

  • I want to eat the fleeting shade of your lashes
Re: Photo of a single atom
« Reply #7 on: February 15, 2018, 03:19:32 pm »
The Life Scientific this week features Richard Henderson explaining Cryo electron microscopy which allows viewing of atoms within biological molecules. http://www.bbc.co.uk/programmes/b09r4c8f
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