This device can save you from seasickness. Seakeeper is an intelligent gyro stabilizer for boats. Its flywheel rotates at up to 9,750 rpm and generates gyroscopic torque that counteracts up to 95% of the boat’s roll motion. It was developed by California-based Seakeeper, a pioneer in the field of marine stabilization. | GIGadgets

Hybrid Gyroscope Top: the Advanced Gyro is a unique design by @physicshack and can defy of gravity as described by the physics of gyroscopic precession and conservation of angular momentum. No pull cord needed, this unique design spins up via friction with a working surface (thin cardboard works well) and applying a circular motion to bring the rotor up to 1000s of RPM. Machined from solid stainless steel this top weighs in at about half a kilo, providing inertia that produces long spin times. A