Transport
Discover facts about transport. Small discoveries that change the way you see familiar things.
Transport
When traffic lights needed a police officer to operate them
Before automatic controls took over, an officer stood at the intersection and changed the signals by hand. The light gave drivers instructions; the officer…
Discover more
Gondoliers call around blind corners like human horns
Buildings hide approaching boats in Venice's narrow canals, so gondoliers shout warnings before turning into a junction. The call carries around a corner…
Discover more
The chaotic art of getting off a ski lift
During normal operation, a moving chair reaches the unloading ramp and continues onward as riders slide clear. The timing turns a seated trip into a small…
Discover more
The secret race you run through crowded malls
Crowded walkways turn passing into a tiny negotiation: match the group’s pace, squeeze around, or wait for a gap. Your brain treats each opening like a…
Discover more
Skateboards offering a highly efficient method to immediately scrape your patella
A skateboard’s small wheels catch cracks, and when the board stops suddenly, the rider keeps traveling. Knees meet pavement in a hurry; knee pads let hard…
Discover more
Venice's gondolas are crooked on purpose
An asymmetrical hull helps counter the sideways force from the gondolier's single oar. The shape and the rower's technique work together to keep the boat on…
Discover more
STACKY FOR IPHONEA bigger world.
One discovery
at a time.
Keep discovering with Stacky. Interesting facts in an app that is always within reach.
A galloping horse has its own agenda
Reins are requests, not a steering wheel: the horse reads the ground and chooses how to handle it. A rider gets a four-legged co-pilot with veto power.
Discover more
The tide can decide whether your vehicle fits on a ferry
As the water level changes, a ferry's loading ramp becomes steeper or flatter. Washington State Ferries warns that extreme low tides can prevent some vehicles…
Discover more
Why a coffee ride can look like the Tour de France
Road bikes, matching jerseys, and clip-in shoes make even a relaxed ride look like a team time trial. Then the group rolls up for coffee, and the most…
Discover more
Drifting lazily through winding venetian canals on a highly decorated wooden gondola
The gondola's hull is asymmetrical, helping counter the sideways push of its single stern oar. That lets the gondolier steer through tight canals without a…
Discover more
Strapping heavy polyurethane wheels to your boots and hoping you do not crash into a solid wall
The wheels roll because their polyurethane tires grip the floor while their bearings spin freely. Your boots get speed; your balance gets promoted to…
Discover more
Making everyone stand helped a London escalator move more people
At Holborn, many passengers avoided walking up the long escalators, leaving much of the walking side unused. TfL reported that a trial with people standing on…
Discover more
The giant ship built to carry other giant ships
A semi-submersible carrier floods its ballast tanks until its deck sinks underwater. The cargo ship floats over the submerged deck, then the carrier pumps the…
Discover more
Modern roller coasters manipulate gravity to simulate absolute terror in willing passengers
The track does the frightening work: a steep drop trades height for speed, then a tight curve pushes riders into the seat. At the crest, the train briefly…
Discover more
Why Venice gondolas lean to one side
A gondola is built asymmetrically to counter the sideways force of its single oar. That lets the boat track straight while the gondolier rows from one side;…
Discover more
The sidewalk torture of walking behind slow groups
A slow group takes up the sidewalk, leaving anyone behind it with two choices: walk at their pace or attempt a tight squeeze past. That forced stop-start…
Discover more
Why spinning classes feel like a cult
The instructor calls the moves, the music sets the pace, and a roomful of riders sweats in sync. That shared effort builds group identity fast: less “exercise…
Discover more
Why buses seem to arrive in threes
A bus delayed by traffic collects extra passengers, so it stops longer; the bus behind it meets fewer waiting riders and catches up. One gap grows while the…
Discover more
Attaching small urethane wheels to a flat wooden board entirely revolutionized urban street commuting
Urethane wheels grip pavement and flex over cracks, unlike the hard wheels that made rough streets feel like a cobblestone obstacle course. Put them under a…
Discover more
Balancing perfectly on two impossibly thin rubber wheels while frantically pedaling a lightweight metal frame
When the bike starts tipping, the rider steers into the lean so the wheels move back beneath the body. That quick correction keeps the lightweight frame…
Discover more
The sprint to the wrong departure gate
A gate change turns a calm walk into a race because the old gate remains in your head while the departure board has moved on. Check the flight number, not…
Discover more
The sidewalk race that ends at the same red light
A car may cover a block faster than a person, then lose its lead at the next red light. The pedestrian keeps moving along the sidewalk while the driver waits…
Discover more
Camel humps store fat, not water
A camel’s hump stores fat, not a tank of water. When food runs short, the camel uses that fat for energy; storing it in one spot also leaves the rest of the…
Discover more
The dawn battle for a cruise-ship pool chair
Pool chairs beside the water are limited, so guests get up early and mark a spot with a towel before the deck fills. The towel becomes a tiny flag planted in…
Discover more