Scholars · Ages 18+ · university· λ = 410 nm

Nuclei, Particles and the Cosmos

Watch unstable nuclei decay and date ancient bones, meet the 17 particles of the Standard Model and build protons from quarks, then stretch space and measure the age of the universe.

3 lessons 42 min 210 XP

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Lessons

1☢️Radioactivity and half-lifeNo one can say when a nucleus will decay, yet half of any sample always goes in one half-life.14 min70 XP
2🧩The Standard Model of particlesSeventeen particles and three forces build everything we have ever seen, except gravity.14 min70 XP
3🌌The expanding universeGalaxies rush apart as space itself stretches. Run the film backwards and you reach the Big Bang.14 min70 XP