Quantum statistics Updated 2025-07-16
Quaternion Updated 2025-07-16
Kind of extends the complex numbers.
Some facts that make them stand out:
- one of the only three real associative division algebras in addition to the real numbers and complex numbers, according to the classification of associative real division algebras
- the simplest non-commutative division algebra. Contrast for example with complex numbers where multiplication is commutative
Average number of steps until reaching a state of a Markov chain Updated 2025-07-16
TODO how to calculate
Barn (unit) Updated 2025-07-16
DNA Updated 2025-07-16
Since DNA is the centerpiece of life, Ciro Santilli is extremely excited about DNA-related technologies, see also: molecular biology technologies.
Hexagon Updated 2025-07-16
Matrix multiplication Updated 2025-07-16
Since a matrix can be seen as a linear map , the product of two matrices can be seen as the composition of two linear maps:One cool thing about linear functions is that we can easily pre-calculate this product only once to obtain a new matrix, and so we don't have to do both multiplications separately each time.
The best television series Updated 2025-07-16
The BBC 1979-1982 adaptations of John Le Carré's novels are the best miniseries ever made:They are the most realistic depiction of spycraft ever made.
Some honorable mentions:
- Futurama
- S02E15 The Problem With Popplers, see also: animal rights. There has to be prior art on this idea, there has to, can someone please point it out?
- S06E09 A Clockwork Origin
- Rick and Morty before it turned to shit on season 3 had some genius moments:
- S02E04 Total Rickall
- Rick and Morty A Life Well Lived
The best YouTube channels Updated 2025-07-16
- www.youtube.com/channel/UCM2YmsRUeIbRkqjgNm0eTGQ Journeyman Pictures. Basically a VICE-like, focused on fucked-up things happening in poor countries or regions.
- Mediocre Amateur
The Big Short (2015) Updated 2025-07-16
The book binding broke three times Updated 2025-07-16
韦编三绝 is a chengyu that means "to study diligently", i.e. to read so much to the point that your book starts to wear down.
There is a Chinese Wiki page for this song: zh.wikipedia.org/wiki/韦编三绝 which says it dates from the early Qing dynasty
Bell's theorem Updated 2025-07-16
Basically a precise statement of "quantum entanglement is spooky".
Potassium Updated 2025-07-16
Spinor Updated 2025-07-16
- Physics from Symmetry by Jakob Schwichtenberg (2015) page 72
- physics.stackexchange.com/questions/172385/what-is-a-spinor
- physics.stackexchange.com/questions/41211/what-is-the-difference-between-a-spinor-and-a-vector-or-a-tensor
- physics.stackexchange.com/questions/74682/introduction-to-spinors-in-physics-and-their-relation-to-representations
- www.weylmann.com/spinor.pdf
Spin-statistics theorem Updated 2025-07-16
Video "The Biggest Ideas in the Universe | 17. Matter by Sean Carroll (2020)" at youtu.be/dQWn9NzvX4s?t=3707 says that no one has ever been able to come up with an intuitive reason for the proof.
Big O notation Updated 2025-07-16
Big tech Updated 2025-07-16
Bijection Updated 2025-07-16
Bill Nye Updated 2025-07-16
The problem as with many well known science communicators is that he falls too much on the basic side of the the missing link between basic and advanced.
Binet (École Polytechnique) Updated 2025-07-16
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