Dawn, the spaceship currently heading out to Vesta and Ceres, uses ion thrusters. Now, the Wikipedia and the NASA JPL website both say the thrusters have a specific impulse of 3100s, which works out to 68 thousand mph.
However, on the NASA JPL video, Leonard Nimoy clearly says "78 thousand" at around 2:40 (as does the CC).
So, the question — is Spock wrong, or is the Wikipedia?
⇦ Heart of gold | ⇨ Dr Jiří Baum |
21 October 2008, 19:16 UTCcomment by piero papini settepani
Answers @ Questions
Today many questions require answers, One why the Earth rotates on his axle? Two do exist another planet where life is possible? Three how the universe exists? Fourth is the big bang a reality? Fifth is the black hole a reality? Sixth why the Moon orbit around the Earth? Seventh why humanity has started to worry about the warming of the planet Earth? This last question is an inevitable happening and is related to the fact that on the Earth after the acquisition of the Moon started the beginning of the Ice age and ever since the Earth has started to get warmer and the two poles have started to loose Iceberg and will continuo to do so, regardless from the action positive or negative of society. To read in more detail you must visit the Google web page, Called the Infinitum Theory.
