You might think invisibility cloaks exist only in the Wizarding World, but think again. A research team at the Korea Advanced ...

AS A jet fighter screams away from the deck of an aircraft-carrier a swirl of vapour trails from the steam-driven catapult that launched it into the air. Catapults are an ancient technology, developed ...

Hearder's Magnetometer, an electro-magnet steel-yard and weight on wooden base used as an experimental electromagnetic lever apparatus. A 13 inch lever arm is pivoted at one end near an electromagnet.

IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. The “TELEGR WERSTAETTE / G. HASLER / ...