How We Would Explain Size, Mass and Time to Aliens

What we consider obvious measurements might be unintelligible by an alien race.

Correlation Never Implies Causation? Not So Much
Analyzing data with causal models can prove whether there's evidence…
Why Does Time Go Forward Instead of Backward?
Why does time go forward and not backwards? It's a more complicated …
How Time Dilation Explains the "Twin Paradox"
If you travel in a spaceship and come back, you'll have aged less th…
The Enduring Danger of Nuclear Weapons

Even when they're not in use, massive nuclear arsenals pose an existential threat to humanity. 

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В интеренете нашел популярный портал , он описывает в статьях про капельное орошение.