Classification of closed surfaces Updated 2025-07-16
So simple!! You can either:
A handle cancels out a Möbius strip, so adding one of each does not lead to a new object.
You can glue a Mobius strip into a single hole in dimension larger than 3! And it gives you a Klein bottle!
Intuitively speaking, they can be sees as the smooth surfaces in N-dimensional space (called an embedding), such that deforming them is allowed. 4-dimensions is enough to embed cover all the cases: 3 is not enough because of the Klein bottle and family.
Gas chromatography etymology Updated 2025-07-16
The name makes absolutely no sense in modern terms, as nor colors nor light are used directly in the measurements. It is purely historical.
The amount of detail in which he remembers all that happened is astounding. Not too different from the Murray Gell-Mann interview in that aspect.
Qsynth Updated 2025-07-16
Business film Updated 2025-07-16
Ciro Santilli defines a "business film" as a film about business, enterprises or entrepreneurship. Political thrillers are closed related as well.
This is one of his favorite film genres!
Some lists:
Crime film Updated 2025-07-16
Fantasy film Updated 2025-07-16
Mystery film Updated 2025-07-16
Samurai cinema Updated 2025-07-16
Chanbara (チャンバラ).
Those movies are "all the same". A quasi lone superhuman samurai with a good inside but painful problems helping out random people, mostly villagers in trouble and bitches in debt.
Spy film Updated 2025-07-16
War film Updated 2025-07-16

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