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Can someone explain this to the uninitiated? I remember when that black hole picture came out, it turned out actually to be: "how this algorithm we invented ge
by _jasper 7y ago
Can someone explain this to the uninitiated? I remember when that black hole picture came out, it turned out actually to be: "how this algorithm we invented generates an image of a black hole", so not really a "picture" in the colloquial sense.
Here I'm having trouble understanding how we could actually "record video" of a bond forming and I'm not even sure the words "record" and "video" are what I think they mean. For instance, could the frame rate of our video-recording technology really be high enough to "capture" something that probably happens near-instantaneously? And what "wavelength" is the light used to record these videos -- wouldn't it need to be tinier than the kind of light we usually use, in order to capture atoms? I'm sorry if this is vague, but I don't know enough terms to pose this question rigorously.
- friendlybus 7y agoFor the lazy it's a next level microscope making a short video of two 0.2nm black dots jamming into each other, walled in by grey carbon nanotubes. They used TEM for imaging. https://www.umassmed.edu/cemf/whatisem/ https://www.umassmed.edu/cemf/whatisem/ Read the article, it didn't capture the minutia of a bond happening, just a few frames of what atoms look like when they do bond.
- lysp 7y agoAnd 0.2nm is 1mm divided by 5 million. And the other way 1g of rhenium contains 3234111231049296000000 atoms (3.23 x 10^21). This experiment is looking at the joining of 2 individual atoms.
- d0mine 7y ago> how this algorithm we invented generates an image of a black hole", so not really a "picture" in the colloquial sense. It is not as artificial as it appears. What people see with their own eyes is an image generated by their brain using algorithms shaped by evolution.