A group at NASA’s Johnson Space Center has successfully tested an electromagnetic (EM) propulsion drive in a vacuum – a major breakthrough for a multi-year international effort comprising several competing research teams.
Thrust measurements of the EM Drive defy classical physics’ expectations that such a closed (microwave) cavity should be unusable for space propulsion because of the law of conservation of momentum.
According to classical physics, the EMDrive should be impossible because it seems to violate the law of conservation of momentum.
The law states that the momentum of a system is constant if there are no external forces acting on the system – which is why propellant is required in traditional rockets.
A controversial design for a new, advanced type of space travel received a boost as German scientists confirmed that it does in fact work.
The EMDrive propulsion system would permit travel at speeds until now only seen in science fiction.
When the concept was first proposed it was considered impossible because it went against the laws of physics.
But subsequent tests – further backed up by this announcement – have shown that the idea could revolutionise space travel.
The system is based on electromagnetic drive, or EMDrive, which converts electrical energy into thrust without the need for rocket fuel.
Read more: http://www.dailymail.co.uk/sciencetech/article-3177449/Nasa-s-impossible-fuel-free-thrusters-work-German-scientists-confirm-viability-super-fast-space-travel-slash-journey-moon-4-HOURS.html#ixzz3j9oxYx4K
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