Bore hole drilling machine (DDW-600) DDW-600 drilling rig is the integral steel-tracked chassis model with powerful mobile capability; advanced negative feedback 1  ... DW/TXS Construction Equipment (Beijing) Co., ...
Levitation. Maglev trains have no contacts with the rails while they move forward. They are levitated on the guide-way with the help of magnetic forces. Levitation is the process by which an object is suspended against gravity in a stable position without any physical contact.
Scientists build super-maglev train that could hit 1,800 mph. Scientists at Southwest Jiaotong University in China have reportedly built a maglev train that could reach 1,800 mph (2,900 km/h). According to The Daily Mail, a vacuum is used to minimize air resistance.