Transport
Discover facts about transport. Small discoveries that change the way you see familiar things.
Transport
How tugboats move sideways
A standard rudder is completely useless when you need to shove a massive metal wall into a tight port. Modern assist boats use pivoting drive units that can…
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Halifax transit ferries cross the harbor in just minutes
Rather than driving all the way around the massive basin, residents just step onto a cheap municipal boat. It slices the miserable commute down to barely…
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Dollies link multiple trailers together
For those times when dragging one massive trailer just isn't terrifying enough. A dolly is a tiny, single-axle platform with its own fifth wheel that sits…
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Outrigger canoes utilize side floats to prevent flipping
A very narrow hull is excellent for gliding quickly through water, but hilariously unstable. Bolting a secondary, smaller pontoon parallel to the main body on…
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Why stagecoach journeys were divided into stages
The agonizing journey cross-country in a cramped wooden box required constant stops because the draft animals would completely exhaust themselves. The route…
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Gondola lift towers feature rubber wheels to guide the rope
If a heavy steel cable just dragged over a bare metal tower, the horrible screeching sound and friction would tear the system apart instantly. Instead, the…
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Why deep-sea explorers used gasoline for buoyancy
When descending into extreme ocean depths, standard air tanks simply compress and instantly lose their buoyancy. Because gasoline is lighter than water and…
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Airplanes rotate around three invisible intersecting lines
Every single movement in the sky is strictly defined by an invisible 3D crosshair inside the fuselage. Whether pitching the nose, rolling the wings, or yawing…
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Buquebus passenger ferries race from Argentina to Uruguay
Instead of dealing with border traffic, commuters just hop on a high-speed boat that blasts across the Rio de la Plata. It is a shockingly fast international…
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Kingpins are the main truck coupling point
It sounds like a mafioso boss, but it is just a stubborn, thick metal cylinder hanging under a trailer. This incredibly vital nub slides into the truck's…
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Concrete roads hide thick steel bars inside to stop cracks
Concrete is incredibly strong until you try to bend it, at which point it shatters instantly. To stop highways from disintegrating into rubble, massive grids…
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Why submarines avoid the famous sonar ping
Hollywood loves a dramatic radar ping, but real submariners prefer not announcing their location to heavily armed enemies. Active sonar blasts an acoustic…
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Why roll-on ferries let drivers avoid reversing
Watching a hundred drivers attempt to back up their respective heavy rigs on a slippery metal deck would be sheer chaos. Modern transport vessels open at both…
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Infantry fighting vehicles provide extremely cramped seating
Riding in an armored personnel carrier is the ultimate test of claustrophobia. Dozens of heavily armed soldiers are shoved shoulder-to-shoulder into a…
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Why curlers put a slider on only one shoe
To hurl heavy stones across a sheet of ice, one foot needs grip while the other needs zero friction. Players wear a Teflon slider on a single foot, allowing…
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The first helicopters looked like flying death traps
The first successful choppers were essentially heavy metallic lawn chairs bolted awkwardly to exposed spinning pipes. Pilots wore goggles and intensely prayed…
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Flight attendants learn to restrain passengers
Being a cabin crew member involves a lot more than passing out napkins. Many international airlines mandate literal hand-to-hand combat training, teaching…
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Astronauts wake up to mission-picked music
Alarms are annoying, but being blasted with trumpets in orbit is next-level psychological warfare. NASA has a long tradition of waking up crew members with…
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Every step is a controlled fall
Your graceful stride is actually a chaotic cycle of losing your balance and catching yourself at the last second. If your brain miscalculates by even a…
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London’s first subway was dug by hand
Before giant boring machines existed, Victorian laborers just looked at the ground and started shoveling. The original London Underground was built using the…
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White blood cell transport skyrockets during infections
When a pathogen enters, your body's biological highway system goes into overdrive. Inflammatory signals dilate blood vessels, turning a normally slow…
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Lazy molecules needing special protein doors
Some molecules are simply too large or too polarized to bother squeezing through a membrane on their own. Facilitated diffusion solves this by providing…
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Elevators pull heavy metal blocks to assist the main motor
Lifting a steel box full of people straight up a skyscraper using only pure motor strength would require an insanely massive engine. Instead, a heavy stack of…
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Civil War spies sketched enemy lines from balloons
Long before spy satellites, military intelligence involved forcing some poor soldier into a basket and floating him precariously above enemy cannons. They…
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