The first step to knowledge—to finding the answer—is to eliminate what isn’t true. Thomas Edison, during his struggle to create the incandescent light bulb, performed thousands of unsuccessful trials. When reporters asked him what he thought about his lack of progress, he replied: “I haven’t failed. I’ve just found ten thousand ways that won’t work!”
KeywordsLunar Surface Rocket Scientist Lunar Orbit Unsuccessful Trial Parking Orbit
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