The "greatest common divisor" of two integers and , denoted is the largest natural number that divides both of the integers.
This is actually pretty good! Makes a small first step into The missing link between basic and advanced.
By the Simons Foundation.
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The most important physics experiments by 
Ciro Santilli 37 Updated 2025-06-17 +Created 1970-01-01
Ciro Santilli 37 Updated 2025-06-17 +Created 1970-01-01Videos should be found/made for all of those: videos of all key physics experiments
- speed of light experiment
- basically all experiments listed under Section "Quantum mechanics experiment" such as:
- Davisson-Germer experiment
Quantum Field Theory lecture notes by David Tong (2007) puts it well:This is also mentioned e.g. at Video "The Quantum Experiment that ALMOST broke Locality by The Science Asylum (2019)".
In classical physics, the primary reason for introducing the concept of the field is to construct laws of Nature that are local. The old laws of Coulomb and Newton involve "action at a distance". This means that the force felt by an electron (or planet) changes immediately if a distant proton (or star) moves. This situation is philosophically unsatisfactory. More importantly, it is also experimentally wrong. The field theories of Maxwell and Einstein remedy the situation, with all interactions mediated in a local fashion by the field.
This section is more precisely about classical mechanics.
Our definition of "film" is a broad one, including any moving picture, of any length, animated or not.
Official Command-line interface to convert a directory of OurBigBook Markup files into a static website. See also: cirosantilli.com/ourbigbook/ourbigbook-cli
www.youtube.com/watch?v=H_H_TF5Kxks This Lab is RIDICULOUS (2021) gives an overview of their new laboratory, and hints of the types of projects they want to carry out.
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