Today I learned of one of the largest non-nuclear explosions ever, the 1947 Texas City chemical explosion. The blast killed all but one of the city’s fire department and was sensed by detectors in Colorado abc13.com/amp/disaster-fi…
Airbus has a patent for a trap door that is positioned in front of the cockpit door and can be triggered by any number of sensors such as seat occupancy sensors, motion detectors, video cameras and microphones worldwide.espacenet.com/p…
In 2004, a woman's steel chastity belt triggered a security alarm at the metal detector. The woman explained that her husband had forced her to wear the device to prevent an extramarital affair while she was on vacation in Greece. She continued her flight to London on the pilot's authority. abc.net.au/news/2004-02-0…
Alexander Graham Bell invented the metal detector to try and find the bullet lodge in President James Garfield. The device worked but had interference from the metal springs in the bed. The chief physician only allowed a search of the right side of the body. The bullet was on the left side. history.com/news/10-thing…
Harvey Milk and George Moscone were assassinated, at San Francisco's City Hall, by a former City Supervisor who snuck the weapon in by going around metal detectors history.com/this-day-in-h…
James McCormick sold the ADE 651, a fake β€˜bomb detector’, all over the world (specifically Iraq) by purchasing novelty golf ball detectors for less than $20 and reselling it for $5000 each. His scam has cost lives and the β€˜bomb detectors’ are probably still in use today. bbc.co.uk/news/uk-2238036…
The lie detector was invented by Wonder Woman creator William Moulton Marston. comedy.co.uk/tv/qi/episod…
The largest treasure hoard in Britain was accidentally found by a man when he set out with a metal detector to find a hammer he had lost in a farm. It was a 1500 year old treasure hoard hidden by the Romans. The British government rewarded him with Β£1.75 million. He found his hammer afterwards. en.wikipedia.org/wiki/Hox…
Today I learned about how African Pouched Rats are being used in Cambodia to sniff out landmines. They have an exceptional sense of smell which allows them to detect TNT in amounts as small as 1 oz, and are able to clear a 200sq m area in 30min where a human will take up to 3 days with a metal detector npr.org/sections/parallel…
Today I learned of an organization in Belgium training giant rats (nicknamed "HeroRATs") to sniff out landmines in countries where explosive remnants of war pose a large threat to communities. The rats are extremely effective, outperforming both metal detectors and bomb-sniffing dogs. boredpanda.com/hero-rats-…
Americium, a chemical element, was originally named Pandemonium due to the difficulty in discovery and because Pandemonium meant Hell (the word is of Greek origin and the capital of Hell in Milton's Paradise Lost). Today, Americium's most common use is in smoke detectors which detect fire. en.wikipedia.org/wiki/Ame…
In 1992, a retiree was out searching for a lost hammer with a metal detector. During his search he found a huge cache of Roman treasure, including 15,234 coins. The British government gave him and the owner of the land Β£1.75 million for finding it. Later on, he also found the hammer smithsonianmag.com/histor…
Today I learned of an incident in which an extortionist claimed a nuclear weapon had been hidden in Boston. A team of nuclear experts rushed in, but their radiation detection gear arrived at the wrong airport. The FBI then rented vans to carry detectors around the city, but forgot to bring the required tools. en.wikipedia.org/wiki/Nuc…
The bullet inside US Prez Garfield was so difficult to locate by doctors of that time that a metal detector was designed by Alexander Graham Bell to search for it. He was fed egg yolks and whiskey rectally. It is claimed his wound was nonlethal and death was mainly due to unsterile practices weirdnj.com/stories/cemet…
β€œthat when we see really ancient images of far off and very, very old objects, that light has traveled from that star through the universe for sometimes billions of years and the first object it hit was our telescope detector.” scienceline.ucsb.edu/getk…
Giant Gambian Rats make excellent explosive detectors. They can be trained to sniff out mines and are too light to trigger them. apopo.org/en/herorats/her…
Dr. William Marston is the creator of Wonder Woman and the "lie detector" en.wikipedia.org/wiki/Wil…
Today I learned about the ADE651 bomb detector device. Sold to over 20 countries including Β£52 million in sales to the Iraqi government. The device was a glorified dowsing rod. en.wikipedia.org/wiki/ADE…
US Army still has dummy tanks. They have dummy M1 tanks that imitate not only in appearance but also in its heat signature in order to appear real to infrared detectors. These decoys cost only $3,300, compared to $4.35 million for a real M1. It's the same size as a duffel bag when disassembled. wikipedia.org/wiki/Dummy_…
There are blue bandaids that have metal in them so that they can be found by a metal detector if they fall off a worker in the food preparation industry. uline.com/BL_6721/Metal-D…
The ADE 651; an inert rod of metal with a plastic hinge, was sold as a bomb detector. It was used by the militaries of Iraq, Afghanistan and more than a dozen other countries for years before anyone noticed that it did nothing at all. en.wikipedia.org/wiki/ADE…
British-made A.D.E. 651 advertised as a foolproof bomb detector. Tens of millions of dollars’ worth were bought by Baghdad military. They turned out to be pieces of plastic with antennae glued on at the end and their batteries were business cards with the word C4 markered on them. vanityfair.com/news/2015/…
All-natural kitty litter is made from clays that are naturally high in thorium, uranium, and potassium-40. The quantities we (and our kitty friends) are exposed to are negligible, but in large shipments it's enough to set off radiation detectors. orau.org/ptp/collection/c…
Smoke and CO detectors expire after 7 to 10 years due to decay of a radioactive component & become unreliable. For this reason most modern ones have an internal clock & will start chirping non stop once it reaches 7 to 10 years to indicate expiration (CO & smoke expire sooner than smoke only). howtogeek.com/361151/what…
Canada developed gay detector called the "fruit machine" and was employed in the 1950s and 1960s during a campaign to eliminate all gay men from the civil service. en.wikipedia.org/wiki/Fru…
Coal miners used to carry caged Canaries down into the mines, as a detector of toxic gases such as carbon monoxide and methane. The Canary would show signs of distress and/or died before the gases affected the miners, leaving them some time to escape. en.wikipedia.org/wiki/Dom…
Alexander Graham Bell, inventor of the telephone, developed the first metal detector in an attempt to locate a bullet lodged inside President James Garfield after he was shot in 1881. The machine failed, in part, due to interference caused by steel wires in the president's bed mattress. history.com/news/10-thing…
Despite popular perceptions about the effectiveness of "lie detectors" (ie, polygraphs), there is little scientific evidence they actually work, and this unreliability has led to most courts rejecting polygraph tests. apa.org/research/action/p…
The Aurora Ice Hotel in Alaska was made entirely of ice. Ice walls, ceiling, beds, bar, barstools, even martini glasses were made of ice. It was closed by the fire marshall for not having smoke detectors. hotels.about.com/od/alask…
The inventor of the smoke detector (Duane Pearsall) originally wanted to make an ion generator designed to control static electricity in factories and photo labs called a β€œstatic neutralizer.” But when one of his technicians lit up a cigarette, a meter measuring the ions went haywire. nytimes.com/2013/12/22/ma…
Some radar detectors use radar detector detector detectors to detect radar detector detectors to prevent detection en.wikipedia.org/wiki/Rad…
Smoke detectors are radioactive. epa.gov/radtown/americium…
Georges Charpak was awarded the 1992 Nobel Prize in Physics for his invention and development of particle detectors. In 1944 he was deported to the Nazi concentration camp at Dachau, where he remained until the camp was liberated in 1945 en.wikipedia.org/wiki/Geo…
Your house can get so humid that it triggers the smoke detector. whyy.org/articles/extreme…
The LIGO gravitational wave detector can detect a change in a 4km beam of less than 1/10,000 the diameter of a proton. en.wikipedia.org/wiki/LIG…
Not only are there radar detectors, but radar detector-detectors, and even radar detector-detector-detectors en.wikipedia.org/w/index.…
Afghanistan's first modern-style indoor shopping mall opened in 2005. The mall is equipped with escalators and see-through elevators. For security, the mall's glass windows are explosive resistant. Visitors are screened by metal detectors before being allowed to enter en.wikipedia.org/wiki/Kab…
Smoke Detectors mostly chirp in the dead of night because the chemical reaction in batteries slows down when the air get's colder thus tripping the detectors low battery detector. sdinspect.com/home-facts/…
In the UK there is an annual license fee of Β£150.50 per household just to watch live TV. There are even special detector vans (with people in them) that catch and prosecute violators watching live TV illegally without a license. en.wikipedia.org/wiki/Tel…
The man who created Wonder Woman and her magical Lasso of Truth, William Marston, was also the inventor of an early version of a more common instrument of truth-finding: the Lie Detector. en.wikipedia.org/wiki/Wil…
A polar bear won't set off an infrared motion detector. asknature.org/strategy/fu…
A former Governor of Arizona, aged 96, was detained by the US Border Patrol because his pacemaker set off radiation detectors. usnews.newsvine.com/_news…
In 2003 a man in Belgium stole diamonds worth 100M Dollars after getting past a lock with 100M possible combinations, infrared heat detectors, a seismic sensor, Doppler radar, a magnetic field and security force. He was caught because he left a partially eaten sandwich near the crime scene en.wikipedia.org/wiki/Ant…
Today I learned of Landsat 8, a satellite designed by Nasa and the US Geological Survey. It can detect what minerals are hidden below the surface using near infrared and short wave infrared spectral bands as well as a panchromatic band. This includes, silver and gold. Essentially the worlds best metal detector. landsat.gsfc.nasa.gov/lan…
There is such a thing as a "pee detector" in some elevators to prevent public urination and it locks you in the elevator if it detects urine. vice.com/en_us/article/av…
Lie detectors aren't reliable, and the creator of the polygraph himself called the machine a "Frankenstein's Monster" due to law enforcements use of it. youtube.com/watch?v=nyDMo…
A man unearthed a hoard of Roman gold coins worth $156,000 within 20 minutes of his first time using a metal detector. huffingtonpost.com/2013/0…
Smoke detectors contain radio active material large.stanford.edu/course…
There was supposedly a "magic bomb detector". Iraq for one spent 85 million on them. They were fake. theguardian.com/uk/2013/a…
Smoke detectors are more likely to chirp in the middle of the night because smoke detrctors are sensitive to voltage fluctuations and they often happen at night when there are less people are using the grid theatlantic.com/notes/201…

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