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todayilearned

Jul 12, 2020

TIL that the Mayan people constructed the temples in a way that a handclap at the base of the temple produces an echo that sounds like the call of the sacred Quetzal bird. For them the bird was a messenger of the gods.

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todayilearned

May 18, 2020

TIL honey doesn't spoil even after thousands of years, like pots of it found still preserved in Egyptian tombs. It is highly acidic and low in moisture making it inhospitable for anything that tries to grow and bees have an enzyme that leaves hydrogen peroxide as a byproduct of breaking nectar down.

physics

todayilearned

Mar 17, 2020

TIL: what it means to measure immortality (sometimes called "lifespan") of an electron, in experiment that failed to disprove immortality assumption, but has offered its minimum lifespan at 66,000 yottayears, which is more than five-quintillion times the current age of the Universe

conservation of energy decay electron gizmodo particle decay particle physics physics science

todayilearned

Jan 27, 2020

TIL a group designed and built a life size 'mouse trap' game. It can be fully packed up and moves with them. It involves crushing a car.

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todayilearned

Jan 05, 2020

TIL there are 18 types of ice crystal including recently confirmed Ice XVIII or Supersonic Ice. It exists under extreme pressure, is black, very hot, and heavier than regular ice. Scientists believe it's the most abundant form of water in the universe and is found deep in icy planets like Uranus.

berkeley chemistry christoph salzmann condensed matter physics crystals federica coppari johns hopkins university lawrence livermore national laboratory livia bove marius millot national center for scientific research omega laser physics pierfranco demontis pierre and marie curie university planetary science raymond jeanloz sabine stanley superionic ice university college london university of california university of rochester’s laboratory for laser energetics

todayilearned

Dec 22, 2019

TIL Shuttlecocks used in professional badminton are made of feathers from the left wing of a goose. Feathers from the right wing make them spin the wrong way.

animals olympic science physics science science & chill short

todayilearned

Nov 20, 2019

TIL that after winning the Nobel Prize in 1922, Carlsberg brewery gave Niels Bohr a special gift: a house with a pipeline connected to its brewery next door, thus providing him with free beer for life.

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todayilearned

Nov 03, 2019

TIL J. Edgar Hoover recommended that Einstein be kept out of America by the Alien Exclusion Act, but he was overruled by the U.S. State Department. FBI spied on Einstein for 22 years and kept a dossier with 1400+ Pages on him.

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todayilearned

Oct 22, 2019

TIL When two subatomic particles called “bottom quarks” fuse, they release more than 7x the energy of individual fusion reactions in hydrogen bombs. The physicists who made this discovery kept it a secret until they were certain the discovery cannot be weaponized.

bottom quarks particles physics

todayilearned

Oct 22, 2019

TIL When two subatomic particles called “bottom quarks” fuse, they release more than 7x the energy of individual fusion reactions in hydrogen bombs. The physicists who made this discovery kept it a secret until they were certain the discovery cannot be weaponized.

bottom quarks particles physics

todayilearned

Oct 14, 2019

TIL that it is impossible to predict the paths of colliding billiard balls after only a few collisions. Tiny differences in initial positions accumulate to such a degree that by the sixth or seventh collision even the force of gravity from people standing near the pool table changes the outcome.

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todayilearned

Oct 01, 2019

TIL that Stephen Hawking once made a bet of $100 with Gordon Kane that physicists would not discover the Higgs boson. After losing the bet he lamented the discovery, saying it made physics less interesting.

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todayilearned

Sep 03, 2019

TIL guns can be fired in space. Gunpowder contains its own oxidizer, which allows guns to work even in the vacuum of space.

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todayilearned

Sep 03, 2019

TIL Humans are bioluminescent and glow in the dark, but the light that we emit is 1,000 times weaker than our human eyes are able to pick up.

biochemistry and molecular biology biology chemistry physics science

todayilearned

Jul 31, 2019

TIL scientists searching for an explanation for an unusually cool area of sky instead discovered a 'supervoid'; an empty spherical blob 1.8 billion light years across that is the largest object in the known universe. An estimated 10,000 galaxies were “missing” from the part of the sky it sits in.

astronomy physics science space

todayilearned

Jun 01, 2019

TIL that Einstein never received a Nobel prize for relativity and he did not attend his prize giving, Despite being informed that he was about to receive the prize, he chose to continue with a lecture tour of Japan, because he simply no longer valued it.

astronomy nobel prizes physics science science prizes

todayilearned

Apr 26, 2019

TIL that Einstein was an excellent violinist saying that "life without playing music is inconceivable for me".

history and civilization musicians physics

todayilearned

Apr 23, 2019

TIL Grapes in a microwave create plasma because the wave lengths are the same size as the grapes

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todayilearned

Apr 19, 2019

TIL Humans are bioluminescent and glow in the dark. The light is just too weak for human eyes to detect

biochemistry and molecular biology biology chemistry physics science

todayilearned

Apr 10, 2019

TIL that Pistachio Nuts are prone to spontaneous combustion if improperly stored or transported in large quantities due to a chemical reaction that continues to take place in the nuts even after they are harvested

chemistry explosions food io9 physics science top

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