Library / Science & Math

Science & Math: 9 courses, every one in the same shape

Three courses are free each week. $9 gets all 119, plus a course built on your own topic. Join.

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Members

Astronomy for Backyard Stargazers

Learn to find your way around the night sky, plan real observing sessions, and see far more with the gear you already own.

Science & Math
Members

How Airplanes Fly

Explain lift, stalls, and drag correctly, spot the myths almost everyone repeats, and read a wing like an engineer.

Science & Math
Members

Statistics for Reading the News

Read any headline number, poll or study result and judge in minutes how much of it you should believe.

Science & Math
Members

Probability for Everyday Decisions

Read forecasts, test results, odds and risk numbers well enough to make calmer, better decisions every week.

Science & Math
Members

Algebra Refresher for Adults

Rebuild algebra from scratch in seven days, from reading expressions to solving linear and quadratic equations with confidence.

Science & Math
Members

How Electricity Gets to Your House

Trace power from the generator to your outlet and understand every step, every voltage, and every wire in between.

Science & Math
Members

Understanding Climate Change Science

Read the physics, the data and the IPCC's own language well enough to judge any climate claim you meet.

Science & Math
Members

How Vaccines Work

Understand how a vaccine trains your immune system, why the platforms differ, and what herd immunity really takes.

Science & Math
Members

The Basics of Genetics and DNA

Read, explain, and reason about DNA, genes, and inheritance without falling for the myths most courses teach.

Science & Math