Ciro Santilli @cirosantilli 37

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Fingerprinting (cybersecurity) Updated 2025-07-16

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Finitely generated group Updated 2025-07-16

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Finite projective linear group Updated 2025-07-16

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First-person shooter Updated 2025-07-16

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First Sibling of Special Relativity Updated 2025-07-16

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First Solvay Conference (1911) Updated 2025-07-16

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First They Ignore You Updated 2025-07-16

First They Ignore You, Then They Laugh at You, Then They Attack You, Then You Win

quoteinvestigator.com/2017/08/13/stages/

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Fiscal paradise Updated 2025-07-16

Fiscal paradises must be invaded and destroyed.

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Fish Updated 2025-07-16

Vertebrates minus tetrapods.

This paraphyletic subgroup is easy to form the "acquatic only" (fishes) vs "things that come out of water" (tetrapods). Though mudfishes make that distinction harder.

Which kind of makes sense, why would you want for limbs unless you are going to stay out of water!

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Fishers of men Updated 2025-07-16

Gospel of Matthew 4 King James Version:

18 And Jesus, walking by the sea of Galilee, saw two brethren, Simon called Peter, and andrew the Apostle his brother, casting a net into the sea: for they were fishers.
19 And he saith unto them, Follow me, and I will make you fishers of men.

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Fish subclade Updated 2025-07-16

Once Ciro joked in a twenty questions-like game that humans are animals.

But counting humans a fish would have been a stroke of genius.

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Fiverr Updated 2025-07-16

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FluidSynth Updated 2025-07-16

Synthesizes MIDI input. vmpk + aconnect + Advanced Linux Sound Architecture hello world: askubuntu.com/questions/34391/virtual-midi-piano-keyboard-setup/1298026#1298026

Supports only very basic effects it seems: chorus effect and reverberation. The main way to add instruments to it is via SoundFont files.

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Fourier series Updated 2025-07-16

Approximates an original function by sines. If the function is "well behaved enough", the approximation is to arbitrary precision.

Fourier's original motivation, and a key application, is solving partial differential equations with the Fourier series.

Can only be used to approximate for periodic functions (obviously from its definition!). The Fourier transform however overcomes that restriction:

The Fourier series behaves really nicely in

L^{2}

, where it always exists and converges pointwise to the function: Carleson's theorem.

But what is a Fourier series? by 3Blue1Brown (2019)

Source. Amazing 2D visualization of the decomposition of complex functions.

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FPGA company Updated 2025-07-16

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FM broadcasting Updated 2025-07-16

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Food without photosynthesis Updated 2025-07-16

This is the future of course, fusion power to generate electricity, and then converting electricity into food somehow.

Hopefully without going through photosynthesis, which feels complicated and wasteful.

Others:

solarfoods.fi/ hydrogen chemosynthesis-based like NeoCarbonFood

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Football variant Updated 2025-07-16

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Formal language Updated 2025-07-16

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Form (mathematics) Updated 2025-07-16

A form is a function from a vector space to elements of the underlying field of the vector space.

Examples:

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