Transport
Discover facts about transport. Small discoveries that change the way you see familiar things.
Transport
A Japanese winter train still heats its cars with coal
On the Tsugaru Railway's Stove Train, glowing stoves warm the carriage while snow passes outside. Passengers can grill dried squid over the heat, so the…
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Saliva immediately transports digestive enzymes into food
Saliva wets each bite and brings amylase along for the ride. The enzyme starts chopping starch into smaller sugars while you chew—your digestive system clocks…
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Why a bobsled can cost over $100,000
The shell has to slice through air while its runners grip the ice through curves at racing speed. Building and tuning that combination takes specialized…
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Tugboats utilize recycled tires as boat bumpers
Tugboats work close to much larger vessels, so they need a soft buffer between steel hulls. Recycled tires squash under impact, turning a potential…
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Why cars finally got cup holders
As American drivers increasingly expected to drink on the go, automakers redesigned center consoles to fit the large cups sold by fast-food chains.
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Early helicopters shook pilots like jackhammers
Without vibration-damping hubs, early helicopters shook so violently that test pilots struggled to hold the controls.
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Amazonian canoes are paddled while standing up
Standing gives a paddler a clear view over the water and a long reach for each stroke. The canoe becomes a quiet little observation platform, with the…
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Why skeleton racers wear spiked shoes
Skeleton racers sprint at the start, pushing the sled to build speed before diving aboard. Spikes on their shoes bite into the ice for traction during that…
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The real bumper is hidden behind the plastic
The plastic shell is mostly a cover; the real bumper is a reinforced beam with energy-absorbing material behind it. In a crash, that hidden layer crushes to…
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Excavator boom and stick arms mimic human joints
The boom works like a shoulder and the stick like an elbow; hydraulic cylinders push each section into position. That jointed reach lets the bucket dig close…
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Why longboards feel like surfing on asphalt
Longboard trucks pivot when the rider leans, steering the board into broad, flowing turns. Momentum carries it through each carve, so riding feels less like…
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Private jet upholstery features hand-stitched leather
Private jets get custom-shaped cabins, so hand stitching lets leather panels follow every curve without bunching. The result is less factory seat, more…
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Flight number 1 can be an airline's prestige label
Airlines often give a low number to a flagship or historically important route, rather than simply numbering every departure in order. The practice isn't…
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Draisines are light auxiliary rail vehicles
A draisine is light enough for rail crews to inspect or service a track, then clear the line when a train needs it. It’s a railway vehicle with a useful…
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Automatic transmission fluid is heavily dyed bright red
The red dye makes transmission fluid easy to spot under a car and easy to distinguish from other fluids. A bright puddle points mechanics toward the right…
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The rubber tiles that help submarines evade sonar
Rubber tiles with tiny cavities absorb sound instead of bouncing it back like a hard hull. That muffles the submarine’s own noise and weakens sonar…
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Yellow taxi cabs burn through brake pads incredibly quickly
City taxis brake constantly through stop-and-go traffic, turning motion into heat at every red light. That repeated friction wears the pads down fast; the…
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How double-decker trains fit under low bridges
The trick is to squeeze two seating levels into the train’s allowed outline: one above the other, with short stairs and less headroom than a house. The train…
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Wheelchair push rims are smaller than the wheels
A wheelchair’s small push rim lets the rider drive the big wheel with their hands. The size difference adds leverage: a modest push at the rim sends a much…
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A bicycle's low gear buys an easier push with more turns
The gearing changes how far the wheel moves for each turn of the pedals. A low gear reduces the force needed at the pedals but requires more turns to cover…
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Why wheelchairs have the right of way
A wheelchair needs a clear route, not a slalom course. Access rules give wheelchair users priority where people share narrow paths, helping keep ramps,…
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A returning rocket booster has to aim its braking force
Small thrusters orient the stage, and engine burns reduce its speed for the return and landing. The engine end must be positioned so thrust opposes the motion…
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A fireboat pumps its water supply from around the hull
Instead of carrying all the water it might need in a tank, the boat draws from the river, harbor, or sea and forces it through powerful pumps. Its practical…
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Helicopters land on hospital roofs using precise angles
A rooftop helipad has obstacles close by, so pilots follow a clear approach path and descend with careful control. The helicopter needs room for its rotors…
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