Dynamos landscape: trains, cars, and bicycles racing along elevated roads and tracks, swinging streetlights, a jogging traffic light, gears on the hills, a small island with an airport, and cyclists climbing a mountain

Planet

Dynamos

On Dynamos nobody stands still. Ever. Trains, cars, bicycles, and planes race in every direction; houses glide along rails, streetlights swing like pendulums, and the traffic lights, so as not to get bored, jog in place. Even time, the locals say, runs a little faster here.

Dynamians measure their lives in miles per hour: they introduce themselves by stating how fast they’re going, and they take offense if anyone calls them “slow.” The only nearly motionless spots on the planet are a small island with an airport and the mountaintops, where cyclists catch their breath for a moment before plunging back downhill. Standing still by the side of the road is considered eccentric behavior, almost suspicious.

The moment she landed, Kinesys got hooked onto a conveyor belt. Dord spent hours complaining about the lack of reliable schedules, but then was pleased to discover that on Dynamos speeds, times, and distances always add up, if you do the math right. Liz has never had so much fun driving. M00N waves at everyone who goes by, which means waving at everyone, all the time.

Riddles from this planet

  • On the small airport island of Dynamos, several identical planes get ready to circle the planet, with the pilots passing fuel to each other and Liz in a helmet

    Flight Around the World

    On Dynamos, planes carry fuel for only half a lap of the planet. How many are needed so one flies all the way around…

  • On a Dynamos highway, Liz drives a space car past a line of trucks, with Dord stiff in the back seat and M00N at the window

    On the Highway

    Liz passes 40 trucks in half an hour on a Dynamos highway. How many trucks an hour would someone standing by the road see…

  • On a mountaintop on Dynamos, a sweaty alien cyclist checks his bike computer, while Liz breaks into a dance step

    The Cyclist

    A Dynamos cyclist climbs at 10 mph and descends the same road at 30 mph. What’s his average speed? Beware the easy answer.

  • On Dynamos, two trains approach each other on the same track from opposite directions, while a fly wearing goggles zips back and forth between the locomotives

    Two Trains and a Fly

    Two Dynamos trains race toward each other while a fly zips back and forth between them. How far does the fly travel before they…