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[QUOTE]Originally posted by Alpha Centauri: [QB] "12x solar escape velocity" - this tells us something about the Charybdis' cruise speed. Just like you need to accelerate to 11 km/s to break free from Earth's gravity (this is Earth's escape velocity), you need to travel at no less than 600 km/s to break free from Sol's gravity. Travel slower, and you can't leave the Sol system. 12 times solar escape velocity translates to 12*600 = 7200 km/s = (7200/300,000) = 0.024c. That is indeed a whole lot faster than what NASA spacecraft can achieve now (40,000 km/h = 11.1 km/s = 0.000037c). [/QB][/QUOTE]
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