stayalive2020 t1_izdx66w wrote
The moon is slowly moving farther away from the earth. But for humans to notice you'd have to span out 10,000 plus years at a time. NASA claims its about 3.8 centimeters a year. Definitely not noticeable in one's lifetime.
dirschau t1_izdzzcr wrote
You wouldn't notice it over the span of the entire human history. Even per 10000 years, that's less than half a kilometer. The moon's orbit varies by 40 thousand kilometers between perigee and apogee every two weeks.
You might start noticing movement if you make frames of a million year's change, and even then after a minute of that video (so about the dinosaur extinction) it would have shifted by a few thousand kilometers, less than the perigee-apogee difference.
stayalive2020 t1_ize06av wrote
You should have answered first lol, thanks for the info!
dirschau t1_ize4div wrote
No worries, it's just funny when you learn that "oh, it's moving away almost 4 centimetres a year, that's a clearly measurable distance. Mountains grow that fast" but then realise you're talking about literal astronomical distances, lol
[deleted] t1_izh3tds wrote
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[deleted] t1_izdxtua wrote
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