Hyperbolic gemoetry Updated 2025-07-16
IBM 650 Updated 2025-07-16
III-V semiconductor Updated 2025-07-16
Most notable example: gallium arsenide, see also: gallium arsenide vs silicon.
An important class of semiconductors, e.g. there is a dedicated III-V lab at: École Polytechnique: www.3-5lab.fr/contactus.php
Riemann hypothesis Updated 2025-07-16
visualizing the Riemann hypothesis and analytic continuation by 3Blue1Brown (2016) is a good quick visual non-mathematical introduction is to it.
One of the Millennium Prize Problems and Hilbert's problems.
Probability current Updated 2025-07-16
Readout (quantum computing) Updated 2025-07-16
Spock Updated 2025-07-16
Important mathematical group Updated 2025-07-16
Janko group Updated 2025-07-16
Mathematics website Updated 2025-07-16
Mathieu group Updated 2025-07-16
Pauli exclusion principle Updated 2025-07-16
Initially a phenomenological guess to explain the periodic table. Later it was apparently proven properly with the spin-statistics theorem, physics.stackexchange.com/questions/360140/theoretical-proof-of-paulis-exclusion-principle.
And it was understood more and more that basically this is what prevents solids from collapsing into a single nucleus, not electrical repulsion: electron degeneracy pressure!
Bibliography:
- www.youtube.com/watch?v=EK_6OzZAh5k How Electron Spin Makes Matter Possible by PBS Space Time (2021)
Provably secure symmetric-key algorithm Updated 2025-07-16
There aren't any 2020, except in the trivial one-time pad case where the key is as large as the message: crypto.stackexchange.com/questions/10815/how-do-we-prove-that-aes-des-etc-are-secure
Steve Jobs customers don't know what they want quote Updated 2025-07-16
TODO clear attribution source:
Some people say, "Give the customers what they want." But that's not my approach. Our job is to figure out what they're going to want before they do. I think Henry Ford once said, "If I'd asked customers what they wanted, they would have told me, 'A faster horse!'" People don't know what they want until you show it to them. That's why I never rely on market research. Our task is to read things that are not yet on the page.
Unitary symplectic group Updated 2025-07-16
Feynman diagram solver Updated 2025-07-16
Indefinite orthogonal group Updated 2025-07-16
Generalization of orthogonal group to preserve different bilinear forms. Important because the Lorentz group is .
Indel Updated 2025-07-16
Infineon Technologies Updated 2025-07-16
Innovative high school Updated 2025-07-16
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