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We launched Margins
A free online repository where you can
📝 Save and annotate your papers
🗣 Share papers and collaborate with anyone
💻 Annotate using LaTeX, Code, Markdown and more
fermatslibrary.com/margins
GIF
Fermat's Library
3,858 posts
Fermat's Library
@fermatslibrary
A platform for illuminating academic papers. We annotate and share a paper every week. Save, annotate and share papers with anyone: fermatslibrary.com/margins
Joined September 2015
- Here's a useful counterintuitive fact: one 18 inch pizza has more 'pizza' than two 12 inch pizzas
- Happy New Year! 🎉 2025 will be the only square year (45²) in many of our lifetimes.
- Cancellation of Momentum: A ball is fired at 50 mph, out of a cannon from a truck that is going at 50 mph. The two momenta cancel each other and in the Earth reference frame the ball has 0 momentum.
00:00 - A demonstration of the conservation of angular momentum using a Hoberman sphere. Angular momentum depends on the rotational velocity of an object, and on its rotational inertia. When an object changes its shape, its angular velocity will also change.
00:00 - 2¹³⁶²⁷⁹⁸⁴¹−1, discovered today, is the largest known prime. It's a Mersenne prime (2ᵖ-1), which are easier to find. It took nearly 6 years for the GIMPS software to find it after the previous largest known prime. It was also the first Mersenne prime found using GPUs.
- Start with 82 and go backwards to 1 8281807978777675747372717069686 7666564636261605958575655545352 5150494847464544434241403938373 6353433323130292827262524232221 2019181716151413121110987654321 ...this number is prime!
- The time period of a pendulum with infinite length is 84.6 minutes.
- Ramanujan said that he received his formulas from God
- In linguistics, Escher sentences are sentences which initially seem acceptable but upon further reflection have no well-formed meaning.
- List of people that have walked on the Moon: Neil Armstrong 🇺🇸🪦 Buzz Aldrin 🇺🇸 91 yo Pete Conrad 🇺🇸🪦 Alan Bean 🇺🇸🪦 Alan Shepard 🇺🇸🪦 Edgar Mitchell 🇺🇸🪦 David Scott 🇺🇸 89 yo James Irwin 🇺🇸🪦 John Young 🇺🇸🪦 Charles Duke 🇺🇸 86 yo Eugene Cernan 🇺🇸🪦 Harrison Schmitt 🇺🇸 86 yo
