the.com/suction
Nature hates a vacuum, so it fills it with whatever's nearby — usually your finger.
means The force that pulls or holds things together when pressure is removed from a space, creating a pull toward the lower-pressure area.
from From Latin 'sugere' (to suck), via 'suctio' — a noun built straight from the act of sucking, the same root that gives us 'suck' itself. It entered English in the 1600s through scientific and medical writing, as thinkers started describing pumps, syringes, and lungs in terms of vacuum and pressure rather than mystery.
- not pulling
- higher pressure outside pushes, nothing actually sucks
- octopus trick
- suckers taste chemicals, not just grip surfaces
- geckos cheat
- they use van der Waals forces, not suction
- medical use
- ventouse delivery uses suction to assist childbirth