Why is glass see-through?

Glass is a magic thing that is both solid as a wall and clear as the air. It starts out as sand and with tons of heat, and a few key ingredients, it becomes the super useful material we know and love. In this episode we look at how glass is made, why it's clear and how nature  makes glass too. Plus, hear about Sanden's latest invention and guess the all new Mystery Sound. This episode is sponsored by Indeed (Indeed.com/BRAINSON - to start hiring now. Terms and conditions apply. Cost per application pricing not available for everyone.) Shopify (Shopify.com/brainson - for a free 14-day trial and full access to Shopify's entire suite of features) Outschool (Outschool.com/brains - save $15 on your child's first class) Bombas (Bombas.com/brainson - Get 20% off your first purchase.) See omnystudio.com/listener for privacy information.