Lighthouses had different techniques for rotating the light, most being too slow, making the light less visible. Augustin Fresnel proposed a mercury flotation system in 1825. Despite some lenses weighing over 6,000 lbs. the design reduced friction, increased rotation, and ultimately saved lives. uslhs.org/lens-rotation
Today I learned about Einstein's "Year of Miracles". In one year he published 3 papers that changed modern physics. The first about the particle theory of light (won him his Nobel Prize), the second led to people accepting the existence of atoms, and the third introduced special relativity (E=mc^2). He was 26. npr.org/2005/03/17/453832…
The human body literally glows, emitting a visible light in extremely small quantities at levels that rise and fall with the day, scientists now reveal. Past research has shown that the body emits visible light, 1,000 times less intense than the levels to which our naked eyes are sensitive. nbcnews.com/id/wbna320909…
Frank Sinatra died the night of Seinfeld's finale and his ambulance made it to the hospital in record time because traffic was so light due to everyone watching the show. groovyhistory.com/frank-s…
Researchers successfully killed MRSA (the antibiotic resistant superbug) with a blue laser and peroxide. They found a blue light can "bleach" the protective layer of the MRSA membrane which then makes it more vulnerable. This weakened it enough for hydrogen peroxide to finish the job. bu.edu/articles/2019/blue…
There is a ancient monument in Ireland called Newgrange and every winter solstice its chamber is illuminated for 17 minutes by a beam of light which reveals the mysterious carvings within. history.co.uk/articles/th…
If you folded a sheet of paper in half 103 times, it would be as thick as the observable universe (93 billion light-years) theinterrobang.com/thick-…
Billy Bob Thornton did get drunk for scenes in Bad Santa. In the escalator fall scene Thornton actually passed out after drinking 3 glasses of red wine for breakfast followed by vodkas and cranberry juice then a few Bud Lights. ew.com/movies/2019/10/18/…
The Finnish Alcoholic Beverage Retailer, Alko, Mass-Produced Molotov Cocktails in the 1940s for use during the Winter War between Finland and the Soviet Union. They even improved the Molotov Cocktail's design, allowing it to ignite on impact without having to light it beforehand. en.wikipedia.org/wiki/Mol…
Today I learned about brothel candles, which burned for precisely 7 minutes and were heavily used during Victorian times. The individual would pay the fee, light the candle, and when the candle burned out, the session was over. gleek.com/nothing-says-ro…
In nightclubs in Ireland in the 80's & 90's the music had to be turned off and lights turned on half ways through the night because the nightclub had to serve a substantial meal by law so the clubs could keep their alcohol licence dublininquirer.com/2017/0…
Squid fishers off the coast of Argentina use such enormous lights to attract squid that it shows up as brighter from space than most cities at night earthobservatory.nasa.gov…
The age of whales can be approximated from their earwax plugs. The earwax builds in layers overtime, and it alternates between a light and dark layer each season between fasting/migration to feeding times, so the layers can be counted to estimate age ocean.si.edu/ocean-life/m…
Originally, the classic banker's lamp had a green shade to lessen one's eyestrain due to early incandescent lights. The green eye visor commonly worn by accountants, telegraphers, and copy editors in the late-19th and mid-20th century were worn for similar reasons. en.wikipedia.org/wiki/Gre…
The speed of light was first estimated in 1676 by a Danish Astronomer who was timing the eclipses of Io caused by Jupiter. He noticed the period between eclipses increased with Earth's distance from Jupiter and guessed it was because light had to travel a longer distance. en.wikipedia.org/w/index.…
An escaped convict was captured in Wisconsin after living for 3 years in a homemade bunker in the woods. The bunker was so sophisticated that it even had a TV, fans, and lights that were powered by pedaling a bicycle. bgr.com/2019/09/01/bunker…
Contrary to myth, bats aren't blind. Research shows that depending on the circumstances, bats sometimes prefer using eyesight to sound when hunting. In fact, many bats don't echolocate at all. These species have particularly sharp vision, and can even see ultraviolet light britannica.com/story/are-…
Today I learned of United Airlines Flight 173 in which the flight crew became so preoccupied with troubleshooting a faulty landing gear light that they didn’t notice the plane run out of fuel, resulting in a crash. en.wikipedia.org/wiki/Uni…
In 1992, a SEAL team performing reconnaissance for the Somalia invasion was ambushed by over 400 journalists camped out on the Mogadishu coastline. Lights from the flashing cameras nearly caused a devastating wave of supressing fire from Navy vessels. sofrep.com/news/operation…
Albert Einstein was Charlie Chaplin's special guest at the 1931 premiere of Chaplin's movie, City Lights. The two became friends, and Chaplin would go on to remember Einstein fondly in his autobiography. indiatoday.in/education-t…
Today I learned about the fascinating research being done in biotechnology in the use of spider silk. 5 times stronger than steel and ultra light the possibilities in uses are vast. There exists a spider goat born by gene splicing in labs that has spider genes and can produce silk in its milk. singularityhub.com/2019/0…
Shel Silverstein wrote a book called "Uncle Shelby's ABZ Book" a parody of his other books with a more adult twist. It encouraged kids to do bad things such as give daddy a haircut, Throw eggs at the ceiling, or put sugar in the gas tank through Shel's 'light-hearted' writing style. en.wikipedia.org/wiki/Unc…
Robert Millikan disliked Einstein's results about light consisting of particles (photons) and carefully designed experiments to disprove them, but ended up confirming the particle nature of light, and earned a Nobel Prize for that. scienceblogs.com/principl…
Ancient Greeks celebrated the moon goddess Artemis by baking round cakes and putting candles on them to represent the moon’s light rd.com/article/origin-of-…
We are currently in the Stelliferous Era, which in the grand scale of the universe is the age where stars are created throughout the universe. Eventually all stars will burn out, & we will enter the Black Hole Era followed by the Dark Era, where there is no longer any light in the universe. en.wikipedia.org/wiki/Fut…
There have been reports of "Earthquake lights" dating back to 869, where lights are said to appear in the sky near areas of tectonic stress, seismic activity or volcanic eruptions. Although skeptics will point to the lack of confirmed documentation en.wikipedia.org/wiki/Ear…
People with a lightly pigmented eye color are more sensitive to light than people with dark eyes. rxoptical.com/eye-health/…
We've only ever measured light that has traveled in two directions; out to a reflecting point and back. With no good way to measure light traveling just one direction, this means the one way speed of light isn't empirically verifiable, and light could travel faster in one direction than another. youtube.com/watch?v=pTn6E…
Photosynthesis can be found in insects. Solar-Powered Hornet Found; Turns Light Into Electricity nationalgeographic.com/an…
Starving male humans can sense the Earths geomagnetic field when under blue light and with a previous food association. The mechanism is unknown but thought to be entangled radical pairs in the eye. journals.plos.org/plosone…
Snow plows do not have to stop for stop signs or red lights. dl-online.com/news/522489…
Octopuses have 2/3 of their neurons in their arms. When in captivity they regularly occupy their time with covert raids on other tanks, squirting water at people they don't like, shorting out bothersome lights, and escaping. theguardian.com/environme…
Light doesn't always travel at the speed of light and has been recorded as slow as 38 m.p.h. (17 meters per second) dash.harvard.edu/handle/1…
Audie Murphy, the most decorated American soldier of World War II, suffered from battle fatigue for the rest of his life. He endured chronic insomnia and recurring nightmares, and kept a loaded pistol under his pillow. He eventually took to sleeping alone in his garage with the lights on. historynet.com/let-there-…
Today I learned about ongoing Greek TV show "Light in The Tunnel" which among solving countless muder and missing cases in Greece, was added twice on the Guinness W.R.; once for finding 85 missing persons in the span of 75 episodes and again for finding a woman missing for 58 years, in just 10 minutes en.wikipedia.org/wiki/Lig…
Gravity has a speed, the speed of light. en.wikipedia.org/wiki/Spe…
If a doll has acrylic eyes, they can turn pink or red when exposed to extreme sunlight or florescent light. dollsdollsdolls.net/2017/…
The infamous CGI plane crash at the end of "Air Force One" was an unfinished shot. The VFX team had run out of time because director Wolfgang Petersen was fixated on adjusting the brightness of an F-16's tail light. vfxblog.com/2017/07/25/ai…
Sagittarius A* - the supermassive black hole at the center of the Milky Way - has a mass 4 million times that of our Sun, but a diameter only 31 times the Sun's. It is so dense that it could fit in the space between the Earth and the Sun, but can attract things 50k light years away. en.wikipedia.org/wiki/Sag…
Today I learned of the beard-second, which is a unit of length inspired by the light-year, but applicable to extremely short distances such as those in integrated circuits. It is the length an average beard grows in one second. en.wikipedia.org/wiki/Lis…
A meter has a history of complicated and at times esoteric definitions of its length. An early measurement used the distance from the North Pole to the equator. Another used a wavelength of light as a measurement. Today, the official definition is based on the speed of light in a vacuum nist.gov/si-redefinition/…
There are 10 million stars within one parsec (3.26 light years) of the center of the Milky Way. For comparison, there is 4.36 light years of space between the Sun and Alpha Centauri. en.wikipedia.org/wiki/Gal…
The Young Ones comedy had bands playing at random parts in episodes so it was classed as 'light entertainment' and not a sitcom, as the BBC has no budget for sitcoms at the time eightieskids.com/you-wont…
Thomas Kinkade "Painter of Light", marketed his paintings as investments that would appreciate over time. Unfortunately, Kinkade paintings bought for $3k - $5k years ago are worth maybe $200 today, if a buyer can even be found. Kinkade was worth $70M when he overdosed on pills and alcohol bizjournals.com/columbus/…
Harry Houdini in disguise would attend magic shows by people who claimed to be "spiritual mediums", knowing their trick, he would finally light a flashlight that left the deception in the open and stand up and cry β€œI am Houdini! And you are a fraud!" bbvaopenmind.com/en/scien…
Spies can eavesdrop on a conversation from hundreds of feet away, just by watching a light bulb’s vibrations through a telescope. wired.me/technology/priva…
One of Jupiter's moon, Europa is known to have a huge ocean underneath its icy surface. NASA is developing an ice-penetrating technology called ARCHIMEDES that uses laser light to penetrate Europa's crust and allow explorers to access its underlying ocean. science.nasa.gov/technolo…
Today I learned about structural coloration, the production of colour by microscopically structured surfaces fine enough to interfere with visible light. Peacock feathers are actually pigmented brown! magazine.scienceconnected…
Johnny Cash was banned for life from the Grand Old Opry for smashing the stage lights with a microphone stand (while battling with drug and alcohol abuse) in 1965. The ban was later lifted and he continued to perform at the auditorium until his death in 2003. rollingstone.com/music/mu…
Today I learned about the world's smallest motorized car. About the size of a grain of rice, it is a micro-model of a 1936 Toyota AA, and includes a body, tires, spare tire, wheels, axle, bearings, headlights, tail lights, bumpers, step, number plate and emblem. It travels at 5-6 mm per second. trussty.com/2016/05/japan…

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