TED-Ed How do crystals work?

From: TED-Ed - Sunday Jun 23, 2019 02:02 pm

How do crystals work?

Lessons Worth Sharing

TED-Ed Original Lessons

How do crystals work?
By Graham Baird, directed by Franz Palomares
Many crystals have signature shapes— like the cascade of pointed quartz or a pile of galena cubes. Every crystal’s atoms have a defining feature: their organized, repeating pattern. The pattern isn't restricted to minerals- sand, ice, metals and DNA also have crystalline structures. So what causes them to grow into these shapes again and again? Graham Baird dives into the unique properties of crystals.
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How close are we to eradicating HIV?
By Kaitlyn Sadtler, directed by Andrew Foerster
Insulin pumps improve the lives of millions of people with diabetes around the world by monitoring blood sugar, delivering insulin, and preventing the need for constant finger-pricking. But there’s a catch: they’re temporary. And it’s not only insulin pumps that have this problem, but all bodily implants. Why is that? Kaitlyn Sadtler details how our immune system reacts to foreign bodies.
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There may be extraterrestrial life in our solar system
By Augusto Carballido, directed by Artrake Studio
Deep in our solar system, a new era of exploration is unfolding. Beneath the thick ice of Europa; in the vapor plumes on Enceladus; and within the methane lakes of Titan, scientists are hunting for extraterrestrial life. These moons are ‘ocean worlds’— they contain liquid oceans, which can support the formation of life. Does life exist on ocean worlds? Augusto Carballido explores the possibility.
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