suction cup
device
Quick Summary
Why suction cups won't work in space
Learn why the lack of atmospheric pressure in the vacuum of space makes suction cups unusable there.
A suction cup is a cup-shaped device designed to create a partial vacuum when pressed against a smooth surface. This vacuum allows the cup to adhere firmly to the surface. The principle behind its function is related to atmospheric pressure; when the air is expelled from under the cup, the external atmospheric pressure pushes the cup against the surface, creating a strong hold. This simple yet effective mechanism is utilized in various applications, from hanging objects to more complex industrial uses.123
Summary created from Britannica articles
using AI.
AI can make mistakes, so verify using Britannica articles.
3 Britannica Sources
Ask Britannica AI about this topic
Britannica doesn't have a full article on this topic, so we've curated a list of our relevant coverage.