A powerful DC motor including a flywheel was scavenged from one treadmill, the speed controller came from another. [Mike] won’t miss the workout bench: Once you’re welding a piece of steel ...

Learn how a scrap old flywheel plate is brought back to life ... Trump’s 25% tariffs on steel and aluminum imports take effect, Europe retaliates Yellowstone to Yosemite: Kevin Costner ...

Early flywheel energy storage systems were all-metal designs, followed by newer, more efficient carbon fiber composite versions that rely on carbon fiber’s lower weight and higher tensile strength ...