How insects walk on water?

I am sure that once in your lifetime you have seen some insects walking on water without any issues but did you question yourself how did this happen?
So you are in the right place keep scrolling!!

Insects walking on water

 

The actual reason

In one word you can say it's due to surface tension. What's that?
If you are a science student then you know that molecules of water attract each other from all directions but the molecules present in the topmost layer are not attracted equally in all directions because there are no molecules present above it. So this topmost layer experiences a force of attraction in the downward direction behaving like a spring.

Surface tension diagram

Insects have very very less weight. So when they walk on water their legs presses the water molecules and as result water molecules push them back creating a floating like condition.
Moreover, their legs are also widely spread causing the equal distribution of the weight of insects on the water.

Why humans can't walk?

Humans are way much heavier than insects. When you will try this then you will sink straight into the water because your whole body weight will concentrate on a single point on water creating much higher force on water molecules and they can't push you back.

Pro Tip- If you want to float then lie on your back on the water. You will automatically float because your weight will equally be dispersed on water.

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