All speakers can work as microphones and vice-versa; if you plug your headphones into a mic input, you can speak into them and use them as a microphone. The inverse is true as well. digitaldjtips.com/2014/05…
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…
In the late 1800s- early 1900s butt plugs were available through prescription. They were used to treat constipation, hemorrhoids, piles, nervousness and even insanity. They were called rectal dilators. sexualhistorytour.com/the…
Today I learned of the kappa, a water imp in Japanese folklore famous for sneaking up peoples intestines through the anus in order to steal their livers and shirikodama, an organ believed to plug the anus; however, you can repel a kappa by farting at them. atlasobscura.com/articles…
Jackie Chan has permanent hole in his head filled with plastic plug en.wikipedia.org/wiki/Arm…
Diesel engines don’t have spark plugs because they fire based off compression. mtaq.com.au/why-dont-dies…
If your headphone plug has 1 stripe, it's mono; if it has 2 stripes, it's stereo; if it has 3 stripes, it's stereo and also passes microphone input geeksmate.io/rings-on-the…
During its original airing, "How the Grinch Stole Christmas" featured sponsor plugs for the Foundation of Full Service Banks en.wikipedia.org/wiki/How…
The largest fire in California's history was caused by a man trying to plug a wasp's nest with a stake and hammer en.wikipedia.org/wiki/Men…
, a Bugatti Veyron has 16 oil plugs and changing the oil takes 27 hours, costing $21,000. topspeed.com/cars/car-new…
Honduras in 2000 tried to ban parents from giving children names like Motor or Bujia (Spark Plug). theguardian.com/world/200…
Today I learned about the cookiecutter shark. The name refers to its feeding habit of gouging round plugs, as if cut with a cookie cutter, out of larger animals. Marks made by cookiecutter sharks have been found on a wide variety of marine life, as well as on submarines, undersea cables, and even human bodies! en.wikipedia.org/wiki/Coo…
During the beginning of invention of electric appliances. They experimented with electric tablecloths. You could basically plug in an outlet anywhere on the table and the lightbulb would light up. Only downside was that you couldn’t spill any liquids on it culture24.org.uk/history-…
Some animals and insects, like squirrels and bumblebees, use a β€œmating plug” to prevent other males from inseminating females they have already mated with. bbc.com/earth/story/20170…
Diesel Engines doesn't use Spark Plugs youtube.com/watch?v=rlK7J…
American electrical plugs have holes in the prongs because if you were to take apart an outlet and look at the contact wipers that the prongs slide into, you would find that they have have bumps on them. These bumps fit into the holes so that the outlet can grip the plug's prongs more firmly. home.howstuffworks.com/tw…
Wernher Von Braun's early years at NASA included a failed "four-inch flight" during which the rocket only rose a few inches before settling back onto the launch pad. It was determined to be the result of a power plug with one prong shorter than the other because a worker filed it to make it fit en.wikipedia.org/wiki/Wer…
The movie Cruel Intentions 2 starring Amy Adams was originally planned and shot as a series for FOX called Manchester Prep before FOX pulled the plug. youtube.com/watch?v=piKFO…
Bears can go the whole hibernation season without pooping due to their bodies forming a β€œfecal plug” in the anus. nps.gov/yell/learn/nature…
A broken piece of a spark plug (a.k.a. "ninja rocks") can be used to shatter a car window if thrown with minimum force ridelust.com/obscure-burg…
There is a nozzle cleaner built into the drain plug of oscillating sprinklers. community.homedepot.com/h…
Electrical plugs have holes in the prongs to grip onto the corresponding bumps in the electrical socket. This prevents the plug from just slipping back out of the socket. worldstandards.eu/electri…
The MTV show Celebrity Deathmatch once planned to have a showdown between Captain Kirk vs. Captain Piccard with William Shatner even blessing the episode. Paramount was unhappy and pulled the plug because they didn’t want MTV β€œF***ing with their billion dollar franchise”. awn.com/blog/celebrity-de…
That up until the early '90's, Appliances sold in Britain were NOT required to have a plug on them. If you purchased a toaster, you were expected to buy a plug and wire it in. articles.philly.com/1992-…
Early water mains were made of wood and firemen would drill into them to get access and then put in a fire plug which was marked for possible future fires and evolved into modern day fire hydrants. sewerhistory.org/grfx/com…
There's systems in which you have pipes across your house that vacuum instead of portable vacuum cleaners, which you can just plug into. en.wikipedia.org/wiki/Cen…
Today I learned about the mating plug: a gelatinous plug secreted by male animals (primates, reptiles, rodents e.t.c.) during copulation that seals off the female reproductive tract, making it difficult for other male competitors to mate with the same female. en.wikipedia.org/wiki/Mat…
Charlie Chaplin considered pulling the plug on his movie "The Great Dictator" because he was worried that it might be banned or that people might not find mocking Hitler funny. When he heard about this, FDR sent Chaplin a message, urging him to make the movie. medium.com/war-is-boring/…
Bears eat things that don't digest to plug their rectum during hibernation. The result is a very painful BM in the springtime. wikipedia.org/wiki/Tappen…
; there are more mobile phones than people in the world, and if everyone plugs their phones to charge at same time, it would consume over 40 gigawatts of electricity, assuming all over 8 billion phones use 5W chargers. That’s over 9 Palo Verde nuclear powerplants. bankmycell.com/blog/how-m…
Plug socket covers designed to reduce the chance of small children electrocutiolng themselves could increase risk by bypassing the built in safety feature the plug socket is designed with. fatallyflawed.org.uk
Today I learned about the SEGA Channel. A videogame streaming service from the early 90's that allowed users to plug a coaxial cable adapter into the cartridge port of their Genesis. This allowed them to download tons of games and demos for the low monthly price of $14.99. youtube.com/watch?v=-T3mG…
That, until 1992, electrical appliances sold in England were not required by law to have a plug attached. Appliances were mostly sold with only a raw wire, and users were expected to wire the plugs themselves. nytimes.com/1992/01/31/wo…
In 1986, the International Electrotechnical Commission published an international standard for internationally compatible plugs. Only South Africa changed their plugs to comply. en.wikipedia.org/wiki/IEC…
When Frito Lay launched SunChips in a biodegradable bag, the new bag was so loud it was measuring 95 decibels when it crinkled, so Canadian customers were offered free ear plugs popsop.com/2010/11/frito-…
During the days of private service there was a position called the plug ugly fireman. It was his job to keep other rival companies away from their water supply. hookandirons.com/blogs/ho…
Brazil has the most robust, compact, and safe plug/socket system in the world, but falls short by not having standardized voltage. worldstandards.eu/electri…
Until the invention of the wall outlet, people had plug their electric appliances into an empty light bulb socket. illumin.usc.edu/122/a-pow…
Hibernating bears don't eat or drink, and thus don't poop or pee, but they develop a fecal plug in their intestines that can grow to 7 to 15 inches long and 1 to 2.5 inches in diameter. They defecate when they emerge from hibernation. "Fecal plugs have a light odor that is not unpleasant." thedodo.com/how-bears-poo…
Our modern idea of headphone plugs is >130yrs old. It was invented in 1878, and is thus possibly the oldest electrical connector standard still in use today! en.wikipedia.org/wiki/Pho…
Until 1992 it was not required for electrical appliances in Britain to be sold with plugs at the end. Often the consumer had to attach it themselves. articles.philly.com/1992-…
Butt plugs used to be sold as a β€˜miracle cure’ for headaches and acne pinknews.co.uk/2016/10/24…
Fragments of porcelain from spark plugs are so effective at breaking windows easily and quietly, that they're known as 'Ninja Rocks' and listed by the State of California as burglary tools. en.wikipedia.org/wiki/Nin…
The satirist Willie Rushton once pranked the Victoria and Albert Museum by placing a label next to a plug socket that read "Plug hole designed by Hans Plug (b. 1908)" which remained in place for a full year, even fooling the cleaning staff who began using an extension cable. en.wikipedia.org/wiki/Wil…
After a male Darwin's bark spider fertilizes a female, he plugs up the female's genitals with a mating plug. Using silk, the female traps the male so that he's stuck to her genitals, saving him for when she's hungry. huffingtonpost.ca/the-nat…
The Micro-USB plug was chosen as the universal charging Standard for cellphones by the EU arstechnica.com/telecom/n…
Those tall, almost mountainous rock structures you see in the backdrop of many western films are called volcanic necks or plugs, and are the remnants of ancient volcanoes. amp-livescience-com.cdn.a…
Volkswagen had a promotion where every car came with a limited edition electric guitar that could plug into the car as an amp autoblog.com/2006/10/03/v…
Japanese Buddhists would self-sacrifice by sealing themselves inside a ship boarded-up like a coffin. At sea they either pulled a wooden plug from the hull and drowned or died of thirst or starvation. atlasobscura.com/articles…
In 'The Godfather', McCluskey's shooting was done by building a fake forehead on top of actor Sterling Hayden. A gap was cut in the middle, filled with fake blood, and was bunged up with prosthetic flesh. The plug was yanked out with fishing line, making a hole suddenly appear. emanuellevy.com/comment/g…

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