Link List Labor
US Vereinigte Staaten von Amerika, États-Unis, United States
Verkehr, Circulation, Transportation

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ehow - Bike-Sizes - korrekte Fahrradmasse

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newscientist - New Scientist - Everyday Scientific Phenomena
Transport Phenomena

• "Warum fallen schlafende Vögel nicht vom Baum?" und
• "Was macht die Mücke beim Wolkenbruch?"

• Results 1 to 15 of 119
• Wrap up well: How are airliners insulated so well when the outside temperature is at -50°C?
• Tread mills: Why do car and motorcycle tyre manufacturers keep coming up with such varied tread patterns?
• Icycle: Why Shackleton's Imperial Trans-Antarctic Expedition take a bicycle to the Antarctic?
• Travel tips: Why are the wing tips on modern passenger jets upturned?
• Up in the air: What percentage of the world's population are flying on airplanes at any given time?
• Pane barrier: What is that tiny cylinder inside aircraft cabin windows for?
• Rubber reversal: If raw rubber is yellow, why are car tyres always black?
• Flying blind?: Do jet airline pilots actually look where they are going or just rely on instruments?
• Commuter conductor: On damp train platforms my umbrella tingles. Why? Is it harmful?
• Road markings: Why did Napoleon insist that Europeans drive on the right rather than the left like the Romans?
• Deadly arts: Why aren't oil paints allowed on airplanes?
• Greek mystery: The mystery of a flexible barge in a Greek harbour
• What's the hold-up?: What's responsible for the stop-start nature of traffic?
• Cars go loopy: Can a car loop the loop?
• Lean view: Why do aeroplanes have small, low windows?
• Results 16 to 30 of 119
• Taxed roads: Corrugations in dirt or sand roads--the full story
• Mind the gaps: What entry pattern maximises your chance of getting a seat in a crowded tube?
• Mercury rising: Why are mercury themometers prohibited on flights?
• On the turn: Why does the steering wheel of a car straighten itself if you remove your hands after turning?
• Which way is up?: How can an aeroplane fly upside down?
• On your bike: What happens to the tyre of a motocycle when it rounds corners?
• Bumpy ride: Why are airplane flights so bumpy, even in seemingly clear sky?
• Paper chase: Did paper aeroplanes exist before the Wright brothers began flying?
• Hand signals: Is it safer to have a left-hand or a right-hand drive?
• Holding the line: Railway lines and changes in temperature--an overview
• Road code: What are roadside barcodes for?
• Electric express: Why can underground electric trains achieve such rapid acceleration?
• Porthole paradox: Why are portholes round?
• Airless: Why air resistance in tunnels is lower
• Sloping off: Can cars roll uphill?
• Results 31 to 45 of 119
• Radar jam: Why wont my cars remote controlled lock work in the airport parking lot
• Hot shoe: Why train shoes dont overheat
• Dreamy sleepers: Why railway sleepers seem still from a train
• Wear and where?: Where does used tyre rubber go?
• Dirty films: What causes the oily film inside car windows?
• Concrete jungle: How much of the surface area of the UK is taken up by roads?
• Lighting up: How do airplane toilet lights work?
• Street life: Is there any evidence that animals are developing road sense?
• Words in the sky: How do pilots skywrite?
• On the hoof: What's the point of horseshoes?
• Cold start: Why does my car perform better on a damp, cold day rather than on a dry, warm one?
• Close to the wind: Can sail boats sail faster than the wind?
• Wings of gas: Mist mysteries of Concorde and the Boeing 747
• We have a problem: How do astronauts keep on course?
• Wakey wakey: What determines the angle of a boat's wake?
• Results 46 to 60 of 119
• Making waves: Why does a boat's wake take so long to disperse?
• Wavy train: Why do spacecrafth paths appear as wavy lines on Mission Control's map?
• New star: Seeing the International Space Station...
• Flight path: Why do rockets take off straight up?
• Waterfall: Why passing canal boats make the water level drop
• Effortless ascent: How flies fly in lifts (elevators)
• Backwash brio: How does the automatical cut-off on a fuel pump work?
• Route master: How does a guide dog know where to go?
• Beeline: Do bumblebees really defy the laws of physics when they fly?
• Free-fall falconry: Is there a terminal velocity that limits the speed at which birds can dive through the air?
• Landing lights: Why are airplane lights dimmed during take-off and landing?
• Belly flop: Why does the space shuttle roll over after launch?
• Smart sidesteppers: Why and how do crabs walk sideways?
• Bags of air: Why do airplane oxygen supplies have bags on them?
• Splat!: Can a fly stop a train?
• Results 61 to 75 of 119
• Taking the plunge: Why airplanes suddenly plunge during storms
• Stop-go: Why are road traffic signals and train traffic signals in reverse order?
• Thread for heights: How can spiders "fly"?
• Flying fins: Why do flying fish fly?
• Strait not narrow: How does the Chunnel compensate for the fact that the Channel widens from erosion?
• Scaling trees: How can snakes climb trees?
• Baa-rmy: Why do chased sheep run in straight lines?
• Bow how?: How does a rounded bow bulb eliminate the bow wave, and how does it improve efficiency?
• Older model: Given the energy required to make a car starting from raw materials is greater than it consumes in fuel, is it better to run "old bangers" for longer, rather than buying new fuel-efficient cars?
• Flying high: Why do aeroplanes fly higher than Mount Everest even where there are no mountains?
• Horse play: Stability of flat-bottomed horse ferries in 19th century Scotland...
• Stresses and strains: In Concorde, what design features were incorporated to compensate for expansion during flight?
• Pipe dream: What became of the scheme to transport solid goods by pipeline?
• Smelly surfaces: What causes the smell when rain wets roads and paths after a dry spell?
• Mountain mystery: How do fish get into high mountain lakes?
• Results 76 to 90 of 119
• Tow trucks/Cars in a drag: The effects of drag on cars and bicycles
• On the road again: All about car tyre road noises
• By the board: How do skateboarders jump their skateboards?
• Through the hole: Why is there a hole in the top of a parachute?
• Shafted: If you find yourself in a free-falling lift what do you do? Jump?
• Pressure situation: If aircraft cabins are artificially pressurised, why do our ears continue to pop on takeoff and landing?
• By the left: Why, when youre walking with another person, do your steps become synchronised?
• Heat haze: Why is light distorted by warm air off tarmac but not by ordinary air currents?
• How about gnat?: How gnats fly in the rain without getting hit by raindrops
• Swingers: Why do our arms move when we walk?
• Take the pils: Why do you stumble to the left?
• Driving range: The best speed and gear for fuel consumption?
• Bouncing along: Is high leg lifting while running efficient?
• Ice screens: Why do different kinds of ice appear on the same car?
• Lava wave: If I had to save myself by surfing down a molten lava flow, what would I be able to stand on that wouldn't melt from the heat of the lava?
• Results 91 to 105 of 119
• Boxing clever: How do box kites fly?
• All together now: Why is a double kayak faster with sychronised alternate paddling than with same-side paddling?
• Flat-footed: The human foot evolved to walk unaided. So why are all but the cheapest shoes designed with heels that are thicker than the rest of the sole?
• Boom boom: Why does the space shuttle returning to Earth cause two separate sonic booms?
• Crawling along: How does the up and down kick used with the crawl propel a swimmer forward?
• Pool pull: Can you swim faster in saltwater or fresh?
• On the double: What happens to a sonic boom at the speed of light?
• Pulling power: How rockets get out of the Earths gravitational field
• Major toms: What happens to a body in space?
• Burning issue: What's the strange burning smell on InterCity trains?
• Light flights: Shadows and haloes produced by aircraft
• Drip dry: Should you walk or run in the rain?
• Is it a bird?: Can a shadow travel faster than light?
• Just plane weird: What are the vapour tubes when planes take off?
• The charcoal burners: Whatever happened to the idea of charcoal-powered cars?
• Results 106 to 119 of 119
• One small step: How long will astronauts' footprints on the Moon's surface remain there?
• Pain in the leg: Why do my muscles ache more on the second day after exercising?
• Happy returns: Why does a boomerang come back?
• Space hop: What would happen to a pint of beer in space?
• Push bike: Why is it harder to cycle up a hill than push a bike up?
• Mistical: Why detergent prevents car windows misting
• The spinners: Do frisbees need to spin in order to fly?
• Cracking on: What is the mechanism responsible for noise and vapour effects in the wake of an aircraft?
• Heat reduction: When spacecrafts return to Earth--why cant they employ an opposing thrust to counteract Earths gravity?
• Gee! Force!: How do the forces of a fairground ride compare to those experienced by astronauts?
• Brim swim: Why is swimming in a full pool harder?
• Dive, dive, dive: Is there a terminal velocity when people dive?
• In the smoke: Do facemasks really protect against pollution?

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