The moon (in case you aren't sure what we're talking about). Image from Wikipedia A seriously dodgy statistic from that renowned historian of science Cherie Blair, just had me jumping up and down in the coffee shop. She proclaimed in an article in the i newspaper: 'It took less than 40 years to put a man on the moon.' 'Really? did it really? And how the heck did you work that out?' I nearly shouted. Leaving aside whether or not it should have been 'fewer than 40 years', let's try to pin it down. The first manned moon landing was 1969, so assuming 'less than 40' is 30-39 years that puts us approximately between 1930 and 1939. I'm struggling to find anything that fits that date. Tsiolkovsky's Investigation of Outer Space Rocket Devices was published in 1903, Goddard was flying rockets by 1915 and published his paper A Method of Reaching Extreme Altitudes , where he suggested a rocket would reach the moon 5 years later. And, ...