Introducing to you The Copenhagen Wheel, a motor-equipped rear bicycle wheel that can turn an existing human-powered bicycle into an e-bike. As you pedal, the motor kicks in and adds a proportional amount of electrical assistance, with a top speed of 20 mph possible to attain. One charge of the battery is good for a range of up to 30 miles, and mounting the wheel is almost as simple as just taking your existing rear wheel off and replacing it.
This motor-powered wheel lets you turn any bike into an e-bike
More of Today's Solutions
Artemis II shows the moon can still unite a divided world
BY THE OPTIMIST DAILY EDITORIAL TEAM When 15 Girl Scouts in Pilot Mountain, North Carolina, gathered to watch the Artemis II launch, troop leader ...
Read MoreLight, scent, and sound: the free home refresh you haven’t tried yet
BY THE OPTIMIST DAILY EDITORIAL TEAM You've arranged the furniture. You've put up the art. The room looks fine. But it still feels a ...
Read MoreTransforming migrant rhetoric is key in preventing genocides
The recent outbreak of war in Ukraine has forced many refugees to seek safety in countries throughout Europe. They are one part of a ...
Read MorePoland protects 10 of its most ancient forests by proclaiming ban on logging
In a significant step toward environmental conservation, Poland's newly appointed climate and environment minister, Paulina Hennig-Kloska, declared a half-year halt on logging in ten ...
Read More
