What happens when you strap a flywheel to a bicycle? More than you'd expect. In this project, I build a DIY flywheel system to store and release energy on the go. It’s part engineering experiment, ...

Many of us think of weight as the enemy, whether it’s our beltline or our Jeeps. Weight places additional stress on all kinds of Jeep parts from the suspension to the drivetrain, makes it more ...

As a means to store energy, power cars, or even ensure geopolitical survival, batteries suddenly rule our planet. Within the past two decades, however, racing minds briefly saw one of humankind’s ...