390: Up to Date | Nanoparticle toothbrushes and a promising Alzheimer's drug

This week: new research into using nanoparticles and programmable magnets to clean your teeth; a potentially breakthrough study on a drug for Alzheimer's disease featuring the first positive trial ever for a disease of aging; recapping NASA’s recent Double Asteroid Redirection Test mission; and a look into how much control you actually have over what Youtube decides to show you.

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391: The Overlooked Gifts of Visual Thinkers with Temple Grandin

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389: These Numbers Explain the Nature of Reality