The earliest known vending machine was invented in 1st century Rome by Hero of Alexandria. Customers could insert a coin into his machine, and the coin's weight would depress a lever and open a valve to dispense holy water. en.wikipedia.org/wiki/Her…
One of the first functional digital home computers was the Digi-Comp I from 1963. It was entirely mechanical and used no electricity. It could output 3 binary digits and programmers used thin wires to set up primitive logic. With no power, the user had to pull a lever to perform each CPU cycle. en.wikipedia.org/wiki/Dig…
Archimedes once said, "'Give me a lever long enough and a fulcrum on which to place it, and I shall move the world." This is based on the law of the lever which has proven that by trading force for distance, a human could move the earth if they were given a long enough lever. en.wikipedia.org/wiki/Lev…
A UK study found that North American gray squirrels are smarter than UK red squirrels at tasks to get hazelnuts. Both gray & red equally opened a clear flap to get a nut. But in a multi-step task including operating a lever to get a nut, 91% of gray squirrels solved it vs 62% of red squirrels. nationalgeographic.com/ne…
The famous pull to refresh in most of our social medias is actually a psychologic trick linking the lever of a gambling machine, thus you anticipate more glory upon doing this some movement of finger on your screen ihpi.umich.edu/news/socia…
Heron of Alexandria invented the first vending machine in the 1st century AD to prevent people from stealing holy water. Temple goers stuck a coin in the slot to apply pressure on a lever that released water. Once the coin reached the end of its path, no more water came out. io9.gizmodo.com/the-first…
When juicing a lime with a press juicer (the kind with a lever) you put the half lime into the cup of the juicer pulp side down/curved side up so that the juicer turns it inside out when you press. youtu.be/KUd06ibsRkk
The soda can tab is engineered to be operate as two different levers: a second-class lever pulls open the middle vent which depressurizes the can and then the first-class lever opens the drinking spout. businessinsider.com/the-g…
Today I learned about a man named Wally Wallington, a retired construction worker, who has figured out a way for a single person to manipulate monoliths using only wooden levers, pebbles, and counterweights, and who may have solved the mystery of Stonehenge. youtu.be/uYQBDhkBfr0
The coin-operated vending machine was invented about 2,000 years ago by Hero of Alexandria, an engineer and mathematician in first-century Roman Egypt. Users inserted a coin, which fell onto a pan that was attached to a lever that opened a valve and dispensed holy water. en.wikipedia.org/wiki/Ven…
Rats who were trained to press a lever for food stopped pressing the lever once they saw that it also caused another rat to receive an electric shock blogs.discovermagazine.co…
In 2006 the NHTSA banned rocker/toggle switches in car power windows in favor lever switches (where the only way to raise a window is to pull back on the switch). 25 children have died after sticking their heads out the window and accidentally choking themselves on the window consumerreports.org/cro/2…
Rats feel empathy to such a degree that they will ignore a lever that releases a tempting chocolate treat in favor of one that saves a drowning friend bbc.com/earth/story/20150…
The first vending machine was invented in Ancient Egypt in 215 BCE and sold holy water. It worked by the use of levers meaning a coin would open a tap, letting water out. coca-colacompany.com/stor…
During the construction of Oslo's first metro line, a 800m2 section of the street lever caved in. So they just decided to build a station there. en.wikipedia.org/wiki/Val…
The first vending machine was invented 2000 years ago in Roman Egypt and sold Holy Water. When the coin was deposited, it fell upon a pan attached to a lever which let some water flow out. A counterweight snapped the lever up and turned off the valve once the coin was tilted off the pan. en.wikipedia.org/wiki/Ven…
Rats who were trained to press a lever for their food would stop pressing the lever once they saw that it would electrically shock other another rat blogs.discovermagazine.co…
[] A bird once crashed through the front windshield of an Israeli fighter plane, knocking the pilot out, but also hitting the ejection lever. nytimes.com/1985/09/17/sc…
Gears are actually levers cs.cmu.edu/~./rapidproto/…
A Carrilon is a large, Bell-tower housed keyboard type instrument, comprised of levers that trigger bells ranging from a weight of 16 lbs to 11 tons. It is played with fists instead of fingers, and is dwarfed only by the largest pipe organs. en.wikipedia.org/wiki/Car…
The Coast Guard trained pigeons to assist in finding people lost at sea. They sat in a dome attached to a helicopter, pressing a lever after spotting life preservers or debris. They had a 90% success rate in initial trials. washingtonpost.com/archiv…
Rats pressed a lever as many as 6,400 times to be administered one dose of cocaine, showing psychological dependence. In another experiment, monkeys were averse to repeat doses of LSD and antidepressants. ncbi.nlm.nih.gov/m/pubmed…
Today I learned of the LeMat 9-shot revolver produced between 1856 and 1865 which can also shoot a central buckshot cartridge by flipping a lever connected to the firing hammer. A version of this weapon can be seen sported by Ed Harris' character in the new HBO Westworld series. en.wikipedia.org/wiki/LeM…
During the 2012 Tunnel Creek avalanche, the roiling snow turned into something closer to liquid, thick like lava. Elyse Saugstad, a professional free skier, narrowly escaped being trapped inside the sudden snow fall by pulling the lever on her avalanche survival air bag before being sucked in. nytimes.com/projects/2012…
Keyboard Layouts Are Staggered Because Typewriters Needed Space For Levers. It's An Anachronistic Holdover. deskthority.net/wiki/Stag…
The reason the Famicom (and later the Super Famicom and SNES) had an eject lever was not because pulling out the game was bad for the cartridge but because the designer, Masayuki Uemura, felt that it could entertain children even when ejecting games en.wikipedia.org/wiki/Nin…
Country singer and accomplished pilot John Denver died because of poor usability. The lever to switch fuel tanks in his experimental plane was behind the pilot's seat and out of reach. airsafe.com/events/celebs…
A typical F1's steering wheel can have more than 35 buttons, switches, levers and lights popularmechanics.com/cars…
The little emergency lever in car trunks glow in the dark. Good to know in case of abduction abc13.com/news/how-to-esc…
There are six basic simple machines: the lever, the wheel and axle, the inclined plane, the pulley, the wedge, and the screw. idahoptv.org/sciencetrek/…
Soda can tabs are very smartly engineered. First they act as a second class lever like a wheelbarrow, but once the gas escapes it acts like a first class lever like a see-saw. businessinsider.com.au/th…
The inventor of the safety pin also invented a repeating lever-action rifle en.wikipedia.org/wiki/Wal…
Rats were allowed to press a lever that stimulated the pleasure center of their brain. They voluntarily pressed it repeatedly until they died of exhaustion and starvation. en.wikipedia.org/wiki/Ple…
Slot machines work by constantly generating random numbers and that as soon as the lever has been pulled the outcome is already decided and the machine knows if it is a win or loss en.wikipedia.org/wiki/Slo…
T.I.L.; The first primate in space, Ham the Chimp, was trained to be able to pull a lever in space. They conditioned Ham to pull the level within five seconds of seeing a blue light. If he responded incorrectly, he's feet were shocked. A correct response yielded banana pellets. en.wikipedia.org/wiki/Ham…
The origin of Balls to The Walls is from fighter pilots pushing the throttle lever all the way forward towards the bulkhead for full throttle. The lever had a ball on top, and the bulkhead is essentially a wall. Balls to the wall. idioms.thefreedictionary.…
The phrase "pulling out all the stops" originates from pipe organs, which have several levers or controls called 'stops' which allow control of volume and timbre of different pipes. Pulling out all the stops would result in a louder, fuller overall sound. idioms.thefreedictionary.…
Pulling out the pin on a grenade does nothing unless you throw the grenade releasing the safety lever which ignites the grenade's fuse. en.wikipedia.org/wiki/Han…
Slouching Creates a "Lever System" that Multiples Neck Strain 3x physioroom.com/experts/as…
When Grover Cleveland served as sheriff of Erie County, New York, he personally pulled the lever sending prisoners who stood on the gallows to their deaths. books.google.com/books?id…
The Soviet Union utilised 'suicide dogs' in WWII to combat advancing German tanks- trained dogs had anti-tank mines strapped to them, and were made to run underneath German tanks- doing so would cause a lever on the mine to hit the bottom of the tank, and detonate the explosives. environmentalgraffiti.com…
Former Pakistani prime minister Benazir Bhutto was killed at an explosion during a campaign rally where she fractured her skull on the lever of the sunroof of her Toyota Land Cruiser. Both Toyota and Pakistan Peoples Party deny this and said the report was "a pack of lies." cnn.com/2007/WORLD/asiapc…
Today I learned of a hidden water fountain constructed in the 1500s, adorned with water powered automata and and secret levers; it sits at the base of a statue called the Colossus en.wikipedia.org/wiki/Vil…
Goldfish are trainable. They can learn to swim through hoops, ring bells, and pull levers for food. tfhmagazine.com/details/a…
The name "soap opera" stems from the original dramatic serials broadcast on radio that had soap manufacturers such as Procter and Gamble, Colgate-Palmolive, and Lever Brothers as sponsors and producers. en.wikipedia.org/wiki/Soa…
Soda can tabs act as a second-class lever when initially lifting, and then as a first-class lever once the seal is broken. If it was solely a first-class, the tab would have to be significantly larger to open the can. youtu.be/hUhisi2FBuw?t=9m…
There is a hidden lever to raise airplane aisle seat armrests!! brokensecrets.com/2011/01…
Some harps, rather than using pedal or lever devices, achieve chromaticity by simply adding additional strings to cover the notes outside their diatonic home scale. en.wikipedia.org/wiki/Har…

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