Author Topic: Photo of a single atom  (Read 3376 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

  • Timelord
Re: Photo of a single atom
« Reply #1 on: February 14, 2018, 11:57:55 pm »
 :o

Best pale blue dot since Voyager.   :thumbsup:
Careful, Kim. Your sarcasm's showing...

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
"Whoever fights monsters should see to it that in the process he does not become a monster. And when you look long into an abyss, the abyss also looks into you." ~ Friedrich Nietzsche

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

  • Tea tank
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

  • Timelord
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...
Careful, Kim. Your sarcasm's showing...

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
There are two ways you can get exercise out of a bicycle: you can
"overhaul" it, or you can ride it.  (Jerome K Jerome)