por que rubis são vermelhos e esmeraldas são verdes? alumínio transparente? mistérios de um dragão de verdade

Notas do episódio

The Apex Predator We Still Don't Understand https://youtu.be/1OSGNzrNXr8?si=FoVxTEm0iR1sAmJ5 Transparent aluminum: Tiny acid droplets turn metal into glass-like material https://phys.org/news/2025-02-transparent-aluminum-tiny-acid-droplets.html Isolamento e veto a redes sociais: as punições incomuns do Irã a dissidentes http://bbc.com/portuguese/articles/c4g3mr37knko Why are rubies red and emeralds green? Their colors come from the same metal in their atomic structure http://theconversation.com/why-are-rubies-red-and-emeralds-green-their-colors-come-from-the-same-metal-in-their-atomic-structure-247978 Yuval Noah Harari Feb 11 How is AI enforcing laws? In some countries, AI-powered surveillance systems are used to monitor public behavior, identify violations, and enforce laws without human involvement. https://x.com/harari_yuval/status/1889350864109793294 canal do radinho no whatsapp! https://whatsapp.com/channel/0029VaDRCiu9xVJl8belu51Z meu perfil no Threads: https://www.threads.net/@renedepaulajr meu perfil no BlueSky https://bsky.app/profile/renedepaula.bsky.social meu mastodon: rené de paula jr (@renedepaula@c.im) https://c.im/@renedepaula meu "twitter" no telegram: https://t.me/renedepaulajr meu twitter http://twitter.com/renedepaula radinho no telegram: http://t.me/radinhodepilha aqui está o link para a caneca no Colab55: https://www.colab55.com/@rene/mugs/caneca-rarissima para xs raríssimxs internacionais, aqui está nossa caneca no Zazzle: https://www.zazzle.com/radinhos_anniversary_mug-168129613992374138 minha lojinha no Colab55 (posters, camisetas, adesivos, sacolas): http://bit.ly/renecolab meu livro novo na lojinha! blue notes https://www.ko-fi.com/s/550d7d5e22 meu livro solo https://www.ko-fi.com/s/0f990d61c7 o adesivo do radinho!!! http://bit.ly/rarissimos minha lojinha no ko-fi: https://ko-fi.com/renedepaula/shop muito obrigado pelos cafés!!! http://ko-fi.com/renedepaula