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735 facts in Technology. Click any fact to see its full page.
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Air traffic control was developed in the 1930s after multiple mid-air collisions over major airports.
The longest commercial flight is Singapore to New York — approximately 19 hours nonstop.
The first hypersonic aircraft, the X-15, reached Mach 6.7 in 1967 — still the speed record for a piloted aircraft.
The 'Dutch Roll' is a lateral-directional oscillation in aircraft — gyroscopic autopilots were developed to counteract it.
Black box flight recorders are actually orange — for easier visibility in wreckage.
Turbulence cannot bring down a modern airliner — aircraft are designed to withstand 2.5x the forces they'll ever encounter.
The Saturn V rocket remains the most powerful rocket ever successfully flown — generating 34 million newtons of thrust.
SpaceX's Falcon 9 has achieved over 200 successful launches — with first-stage boosters landing and being reused.
The Apollo 11 guidance computer had 4KB of RAM — modern smartphones have over 1 million times more.
The first jet aircraft to fly was the Heinkel He 178 in 1939 — 3 years before the first Allied jet planes.
The Boeing 747's upper deck was originally intended as a lounge — it was converted to seats when airlines wanted more capacity.
The SR-71 Blackbird remains the fastest air-breathing plane ever built — top speed over Mach 3.3.
The Concorde could cross the Atlantic in 3.5 hours — passengers arrived before they left by local time zones.
The CT scan was invented by Godfrey Hounsfield in 1972 — enabling 3D internal imaging for the first time.
Magnetic resonance imaging (MRI) was first used clinically in the 1980s — producing images without radiation.
The laser was invented in 1960 — it now appears in medicine, manufacturing, communications, and consumer electronics.
The invention of the transistor in 1947 enabled the entire digital revolution.
Passive house buildings use 75–90% less energy than conventional buildings — through insulation, airtightness, and heat recovery.
Single-use plastic bans have been implemented by over 60 countries — but enforcement varies widely.
Zero-waste cities like Kamikatsu, Japan, sort waste into 45 categories — achieving 80%+ recycling rates.
B Corporations are certified for social and environmental performance — holding companies accountable beyond profit.
Community land trusts permanently affordable housing by separating ownership of land from ownership of buildings.
Urban green infrastructure (parks, green roofs, bioswales) reduces stormwater runoff by up to 65%.
Green hydrogen — made from water using renewable electricity — is a potential zero-carbon fuel for industry.
The Ellen MacArthur Foundation promotes the circular economy — designing waste out of the system from the start.
Cybercrime is now the most profitable criminal enterprise globally — generating over $1.5 trillion annually.
Phishing attacks account for over 80% of reported cybercrime incidents globally.
Plea bargaining resolves about 97% of US federal criminal cases without trial.
The dark web's largest criminal marketplace was Silk Road — FBI agents seized 144,000 Bitcoin when they shut it down.
Money laundering moves $800 billion to $2 trillion through the global financial system each year.
The FBI's CODIS database contains DNA profiles from over 20 million people.
The saxophone was invented in 1846 by Adolphe Sax — specifically to bridge the woodwind and brass sections.
The accordion was a Russian invention, developed in Berlin in 1822 — it reached Cajun music via French immigrants.
The first recorded music was made possible by Edison's phonograph in 1877 — 'Mary Had a Little Lamb.'
The electric guitar was not invented by one person — multiple inventors developed electromagnetic pickups independently.
The invention of the piano (fortepiano) around 1700 allowed musicians to control volume — unlike the harpsichord.
The internet has enabled both more democratic participation and more effective authoritarian surveillance.
Proportional representation systems produce more diverse legislatures than first-past-the-post systems.
Ranked-choice voting reduces polarization by allowing voters to express nuanced preferences.
Holographic memory stores data in three dimensions — a sugar-cube-sized crystal could hold petabytes.
Shape memory alloys return to their original form when heated — used in medical stents and spacecraft antennas.
Photochromic materials darken in UV light — used in transition lenses and smart windows.
Piezoelectric materials generate electricity when compressed — used in lighters, quartz watches, and pressure sensors.
Liquid crystals — between solid and liquid states — power every LCD screen and display.
Ferrofluid is a liquid that becomes magnetized in the presence of a magnetic field — forming spiked patterns.
The world's fastest text message — 17 words in 18.44 seconds — was typed on a touchscreen by Marcel Fernandes.
Cursive writing was developed to reduce the number of times a quill had to be lifted from parchment.
The Viking longship was the most advanced ocean-going vessel of its time — capable of both open-ocean and river travel.
Buildings in earthquake-prone regions use base isolators — allowing the foundation to move independently of the structure above.
Wind farms require careful spacing — turbines placed too closely create turbulence that reduces efficiency.