Kofun are megalithic tombs for rulers in Japan, constructed between the early 3rd century and early 7th century. The most common type of kofun has a shape of a keyhole, having one square end and one circular end, when looked down upon from above. The funeral chamber was located beneath the round part and consisted of a group of megaliths.
Innespace’s Seabreacher Dolphin resembles a stylized dolphin, complete with dorsal fin and flippers that can leap from the water and dive into it, as well as perform “aquabatics”. Seabreachers enable their controllers to maneuver swiftly through the water: diving, jumping, rolling, porpoising… all within the safety and comfort of a dry, sealed cockpit.
A nice collection of photos of exercise machines from circa 1920.