Did America really land on the moon? If you did, why didn't you land on the moon for 37 years?

Apollo's landing on the moon is irrefutable evidence, from rocket research and development, to pre-planned orbit change, orbit docking and data link construction, to a large number of videos and photos left on the lunar surface, as well as a large number of scientific experiments and collected lunar specimens on the lunar surface. And the reaction of the Soviet Union at that time, and then the detector clearly photographed the traces of landing on the moon that year.

But most trees are windy (no one doubts the Soviet Moon 24 because they have never heard of it). Based on the mysterious nature, conspiracy theories or irrational patriotism, the Internet is full of all kinds of dirty problems. I don't want to talk about technical issues here. I just want to say a very simple truth. Are those friends who send WeChat pointing fingers smarter than the 300 million Soviet people?

The latter question is a good one. In fact, the reason is not complicated, the cost-effectiveness ratio.

Let's talk about the benefits of space flight first. In addition to its limited scientific value, it is mainly to invigorate the national spirit and enhance national cohesion. Maybe this is hard to understand now. However, after 1957, the manned space flight over the eastern part of the Soviet Union was completed, the superiority of socialism began to be naturally discussed in the United States. However, after the completion of the Apollo program, this haze was swept away. This can also be felt today. After India put a very different man, Garian, into orbit on Mars, didn't the Internet clamor that China didn't understand space?

Of course, with continuous success and repetition, spiritual strength will gradually decline. However, the cost of rocket launch will not change. If nothing else, a launch vehicle Saturn V alone will cost billions. You know, before the collapse of the Bretton Woods system, 35 dollars could be exchanged for 1 gram of gold. In contrast, the input-output benefit ratio is getting worse and worse. When NASA put forward the plan to send a man to the moon again in 1977, it was rejected by Congress because of the high cost.