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6 December 2014
- 21:0621:06, 6 December 2014 diff hist −925 Spacecraft propulsion Pulsed plasma thruster is defined as an electromagnetic plasma thruster by the ESA. http://www.esa.int/esapub/br/br187/br187.pdf current
21 June 2012
- 15:5815:58, 21 June 2012 diff hist +6,713 N Boundary-layer thickness →Shape factor: H=2.59 for laminar flows and H=1.3 to 1.4 for turbulent flows, not the opposite