Science
Related: About this forumThis Photo of a Single Trapped Atom Is Absolutely Breathtaking
It looks incredible when zoomed in.
FIONA MACDONALD 14 FEB 2018
At the very centre of the image above is something incredible - a single, positively-charged strontium atom, suspended in motion by electric fields.
Not only is this an incredibly rare sight, it's also difficult to wrap your head around the fact that this tiny point of blue light is a building block of matter.
Tiny specks of energy just like this one are at the centre of so much of the stuff around us, and the thought that we can see this one makes our hearts hurt.
In case you're struggling to get a close-enough view to see what we're talking about, the team over at Gizmodo has done the zoom work for you.
More:
https://www.sciencealert.com/photo-of-a-single-trapped-atom-wins-uk-science-photo-prize
Pachamama
(16,887 posts)I love the purple light too...
AllaN01Bear
(18,242 posts)ohm myyyyy!!!.
dixiegrrrrl
(60,010 posts)Thank you for this.
FailureToCommunicate
(14,014 posts)SCantiGOP
(13,871 posts)but atoms are way too small to be seen even with the maximum magnification available.
jmowreader
(50,559 posts)It seems that a biologist wanted to see just how low a pay-for-play scientific journal would sink, so he wrote up the plot of a Star Trek episode to look like a research paper, sent it in (along with money), and they published it.
Stardust1
(123 posts)Great. Now right wing nut jobs will use that as a way to imply science that they don't like is phony. When really it should be a warning about what happens when you privatize things that shouldn't be privatized.
MFM008
(19,814 posts)Science but science shall overcome
and holds dominion
Over all.
hunter
(38,316 posts)The atom is zipping around like crazy in its confinement, "bouncing off the walls" so to speak, absorbing ultraviolet light and emitting visible light along the way.
I'd guess the spot of light the camera recorded represents the size of the cell the atom is trapped in and/or distortions in the camera's optics.
It's a very remarkable picture.
struggle4progress
(118,290 posts)and the dot is about 1/32 of an inch, or perhaps 1/64 of the pin separation
But the true separation of pins is reportedly about 2 mm, while the actual diameter of a strontium atom is around 2 angstroms (about one-ten-millionth of the pin separation)
So the true size of the atom is about a 1/150000 of the true size of that little dot
Unca Jim
(556 posts)If the two metal points are 2mm apart that's an awfully big atom!
This is a joke, right?
Jim__
(14,077 posts)From National Geographic:
Atoms are infinitesimally small, measuring only a miniscule fraction of an inch in diameter. At 38 protons and 215 billionths of a millimeter across, strontium atoms are relatively large by comparison. Still, the only reason why we can see the atom in the photo is because it absorbed and then re-emitted laser light at a speed capturable by a long camera exposure. So, the photo is actually of the laser light being re-emitted, rather than the outline of an atom. Without the long exposure effect, the atom wouldn't be visible to the naked eye. (Related: "The God Particle" )
...
hunter
(38,316 posts)... they too are essentially point sources of light, but this light is spread out by diffraction and other distortions to activate more than a single camera sensor pixel, or rods and cones in a human eye.