Max’s Demons: a digital resource for mastering college-level physics.
Recently explained
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Potential Energy
Potential energy can be easy to understand, tricky to define, and confusing to use. Here, we not only define potential energy, but explain what it …
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Centrifugal force
Fictitious forces such as the centrifugal force are fake forces – they don’t really exist! However, fictitious forces are helpful when working in non-inertial reference …
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Rocket equation
How much fuel does it take to accelerate a rocket to a given velocity? Here we navigate a step-by-step derivation of the rocket equation, explain …