Module
#
Order
Beta

Dry friction

LINK Cost
3
HYPerlink Cost
ability
Entropy (Progress 1 for each linked module you control.)
BasE Power
6
guardian CaRD
Guardian

Perpetual motion does not exist. This disillusion leaves a scar that burns like friction.

Illustr. Alex Rommel © 2022 Universität Innsbruck

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Friction hinders perpetual motion by transforming kinetic energy into heat. But you already knew that...otherwise, why do you rub your hands to warm them?

Friction is also the resistance one feels when one drags an object on the ground, and that makes it possible to walk, turn with our cars or hold a cup of tea. This odd force, which always resists movement, is caused by the interaction between the molecules on the two surfaces that rub against each other.

Illustr. Alex Rommel © 2022 Universität Innsbruck

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What is friction?

What does friction depend on?

Friction and energy conservation

Which penguin will slide for longer: one that weights 100kg or one that weights 20kg?