Water

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6,456 published items.

How to wear a mask without blurring of glass
Discover science

How to wear a mask without blurring of glass

In the middle of the storm, of course, a mask is needed, but for a team of four eyes, the experience is not easy because the glasses are always blurred by the steam.

February 13, 2020
Why do crabs foam?
Animal world

Why do crabs foam?

When we buy crab, we have to choose live crab with hard shell, release a lot of white foam. What is the rule of this?

February 9, 2020