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Today I learned that ...

2023-05-18
2021-08-29
There is std::ostream_iterator.
2021-06-14
GJK is used for collision detection in video game physics engines.
2021-06-11
That birds have very special legs.
2021-03-12
While there are min-Heaps and max-Heaps there are also min-max-heaps.
2020-11-25
Although they're resource-efficient, Green threads are named after their designers: the Green Team at Sun.
2020-11-12
The Kakapo is the only flightless, nocturnal parrot alive.
2020-11-03
Besides looking up, down, left and right you can also rotate your eyes. This is called cyclorotation. Your eyes do this to maintain a steady depth perception. And you can learn to do this actively.
2020-11-03
The speed of light is constant in all directions by convention.
2020-10-31
If you use your body to block someone from entering your home its a form of Phragmosis.
2020-10-18
There is not only Three-sided football but also Four-player chess.
2020-10-13
While CAP imposes a trade off between consistency and availability during a partition, PACELC describes the base state as a trade off between consistency and latency.
2020-10-10
Portia is a genus of intelligent spider-eating spiders that probably are capable of learning and problem solving.
2020-10-08
There is no consensus without timeouts.
2020-10-07
The Tesla valve is a one-way valve without moving parts and very durable. It doesn't block the flow completely though.
2020-10-05
There is an almost always division free algorithm to uniformly sample random integers from an interval.
2020-10-05
You can write a CPU using an HDL which then can be synthesized into a integrated circuit.
2020-10-03
The Möbius strip can be embedded into R3 without self intersection and a circle as boundary.
2020-09-30
A k-d tree is a great data structure for searching in multiple dimensions.
2020-09-28
Distributed consistency is easy when the problem is monotonic.
2020-09-03
I need a website where I can collect and share all the things I learn.