Din nou despre EMDrive

Evaluating NASA’s Futuristic EM Drive
April 29, 2015 by José Rodal, Ph.D, Jeremiah Mullikin and Noel Munson - subedited by Chris Gebhardt
no alt

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.

EM Drive:

Last summer, NASA Eagleworks – an advanced propulsion research group led by Dr. Harold “Sonny” White at the Johnson Space Center (JSC) – made waves throughout the scientific and technical communities when the group presented their test results on July 28-30, 2014, at the 50th AIAA/ASME/SAE/ASEE Joint Propulsion Conference in Cleveland, Ohio.

Those results related to experimental testing of an EM Drive – a concept that originated around 2001 when a small UK company, Satellite Propulsion Research Ltd (SPR), under Roger J. Shawyer, started a Research and Development (R&D) program.

The concept of an EM Drive as put forth by SPR was that electromagnetic microwave cavities might provide for the direct conversion of electrical energy to thrust without the need to expel any propellant.

This lack of expulsion of propellant from the drive was met with initial skepticism within the scientific community because this lack of propellant expulsion would leave nothing to balance the change in the spacecraft’s momentum if it were able to accelerate.

However, in 2010, Prof. Juan Yang in China began publishing about her research into EM Drive technology, culminating in her 2012 paper reporting higher input power (2.5kW) and tested thrust (720mN) levels of an EM Drive.............................etc

Udita Cadita a scris:Nope, stiu ce vreau.

Stiati ca...doar prostii mor de grija altora?

WoodyCAD a scris:Este foarte interesant studiul erorilor, cand ceva nu e in acord cu teoria cunoscuta...se scot erorile in prim plan!
Cum ar putea sa explice, maimutica savanta, ...lucruri inexplicabile!
Cum ar putea maimutica savanta sa spuna....ACESTE TESTE NE ARATA CA EXPERIMENTUL DE PE MASA NU ESTE IN ACOORD CU NICIUNA DIN LEGILE FIZICII!
. . . . .

Razvan a scris:După cum ai fi putut să observi, este un citat!
Bunicul meu habar n-avea despre EMDrive, aşa că nu l-aş fi putut cita în limba lui.

o maimutica needucata a scris:Oameni buni, lasati-l sa discute cu maimuticile lui! Are un tupeu
nemaipomenit!