Bagger 293 is a giant bucket-wheel excavator made by the German industrial company TAKRAF, formerly an East German Kombinat. Bagger 293 is 96 metres (314.9 feet) tall. It is 225 metres (738.2 feet) long, weighs 14,200 tonnes, and requires five people to operate. It is powered by an external power source providing 16.56 megawatts. It can move 218,880 tonnes of soil per day.
A forage harvester is a farm implement that harvests forage plants to make silage. Silage is grass, corn or other plant that has been chopped into small pieces, and compacted together in a storage silo, silage bunker, or in silage bags. Forage harvesters can be implements attached to a tractor, or they can be self-propelled units. In either configuration, they have either a drum (cutterhead) or a flywheel with a number of knives fixed to it that chops and blows the silage out a chute of the harvester into a wagon that is either connected to the harvester or to another vehicle driving alongside.Nautilus Minerals is the first company to commercially explore the seafloor for massive sulphide systems, a potential source of high grade copper, gold, zinc and silver. Nautilus is developing a production system using existing technologies adapted from the offshore oil and gas industry, dredging and mining industries to enable the extraction of these high grade Seafloor Massive Sulphide systems on a commercial scale.