Old quantum theory Updated +Created
Raster graphics Updated +Created
Represents image pixel by pixel, rather than by mathematical primitives such as done in vector graphics:
OneZoom Updated +Created
Interesting fractal approach to a phylogenetic tree: www.onezoom.org/
Mostly data driven.
Radio Updated +Created
Subtle is the Lord by Abraham Pais (1982) Updated +Created
Los Alamos From Below by Richard Feynman (1975) Updated +Created
Amazing talk by Richard Feynman that describes his experiences at Los Alamos National Laboratory while developing the first nuclear weapons.
  • www.youtube.com/watch?v=uY-u1qyRM5w&t=2881s describes the computing aspects. Particularly interesting is the quote about how they used the typist secretary pool to emulate the IBM machines and debug their programs before the machines had arrived. This is exactly analogous to what is done in 2020 in the semiconductor industry, where slower models are used to estimate how future algorithms will run in future hardware.
Zermelo-Fraenkel axioms Updated +Created
Non-commutative Updated +Created
How large primes are found for RSA Updated +Created
Answers suggest hat you basically pick a random large odd number, and add 2 to it until your selected primality test passes.
The prime number theorem tells us that the probability that a number between 1 and is a prime number is .
Therefore, for an N-bit integer, we only have to run the test N times on average to find a prime.
Since say, A 512-bit integer is already humongous and sufficiently large, we would only need to search 512 times on average even for such sizes, and therefore the procedure scales well.
Scribe Updated +Created
Rectifier Updated +Created
Drug addict Updated +Created
Absorption (electromagnetic radiation) Updated +Created
Electronic warfare Updated +Created
Electron microscope Updated +Created
All of them need a vacuum because you can't shoot elecrons through air, as mentioned at Video "50,000,000x Magnification by AlphaPhoenix (2022)".
Comedy Updated +Created
Country Updated +Created
We shouldn't have countries.
We should have one big global government, with one global language that everyone can speak, and slightly different local laws, so you can choose where to live based on the laws you approve of the most.
Politics Updated +Created
Colony (biology) Updated +Created
It is hard to distinguish between colonies of unicellular organism and multicellular organism as there is a continuum between both depending on how well integrated they cells are.

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