Criticisms of VASIMR
Robert Zubrin is critical of the VASIMR claiming that it is less efficient than other electric based thrusters which are now operational. Zubrin also believes that electric propulsion is not necessary to get to Mars and therefore budgets should not be assigned to develop it. His second point of criticism concentrates on the lack of a suitable power source. Ad Astra subsequently responded to the criticism.
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Famous quotes containing the words criticisms of and/or criticisms:
“I have no concern with any economic criticisms of the communist system; I cannot enquire into whether the abolition of private property is expedient or advantageous. But I am able to recognize that the psychological premises on which the system is based are an untenable illusion. In abolishing private property we deprive the human love of aggression of one of its instruments ... but we have in no way altered the differences in power and influence which are misused by aggressiveness.”
—Sigmund Freud (1856–1939)
“I have no concern with any economic criticisms of the communist system; I cannot enquire into whether the abolition of private property is expedient or advantageous. But I am able to recognize that the psychological premises on which the system is based are an untenable illusion. In abolishing private property we deprive the human love of aggression of one of its instruments ... but we have in no way altered the differences in power and influence which are misused by aggressiveness.”
—Sigmund Freud (1856–1939)