Discover and read the best of Twitter Threads about #nanoscience

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In July 1969 the Apollo 11 astronauts conducting several tasks during extravehicular activity (EVA) operations on the surface of the moon. The EVA lasted approximately 2.5 hours with all scientific activities being completed satisfactorily. #OneGiantLeap

#Apollo11 landed on the Moon on July 20, 1969.

That's #OneSmallStep for [a] man, #OneGiantLeap for mankind.

Read 54 tweets
Or there's the classic sci-fi book Flatland, which asks: what would it be like if we lived in two dimensions? As if we lived in a piece of paper, or only on the surface of a table?
The notion of up and down would be meaningless; we’d only have left and right, and front and back. So we’d be moving in two dimensions rather than three, and we’d also perceive everything around us to have only two dimensions.
There wouldn’t be any going over a fence, or peeking under a door. If a thing blocked your way, it would block it completely, and everything behind it would be completely invisible.
Read 7 tweets
In grad school I studied nanocrystals, little tiny things a few nanometers in size (ten thousand times smaller than a human hair). I was working with @MDrndic who now does a lot of bio-nanoscience too, but when I started we were all focused on nanoelectronics.
There are a ton of cool things about nanomaterials, but what really drew me in is that the laws of physics are fundamentally different at the nanoscale. It's like a crazy sci-fi world that underlies our own!
I did my thesis looking at a type of nanocrystal that can generate current from light, for solar cells, LEDs, etc. What colour light they produce or respond to depends on their size, so each of these vials has a different size nanocrystal of the same material:
Read 6 tweets

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