3.9 • 1.7K Ratings
🗓️ 25 August 2025
⏱️ 10 minutes
🧾️ Download transcript
Glass windows are as solid as the materials that surround them, yet they let light through. Learn the physics of why glass can be so transparent -- and why it took humans thousands of years to create totally clear glass -- in this episode of BrainStuff, based on this article: https://science.howstuffworks.com/question404.htm
See omnystudio.com/listener for privacy information.
Click on a timestamp to play from that location
| 0:00.0 | This is an I-Heart podcast. |
| 0:06.6 | There's a vile sickness in Abbas town. |
| 0:10.4 | You must excise it. |
| 0:12.8 | Dig into the deep earth and cut it out. |
| 0:16.7 | From IHeart podcasts and Grimm and Mild from Aaron Manky, |
| 0:20.0 | this is Havoc Town. A new fiction podcast set in the Bridgewater Audio Universe, starring Jules State and Ray Wise. |
| 0:29.1 | Listen to Havoc Town on the IHart Radio app, Apple Podcasts, or wherever you get your podcasts. |
| 0:35.9 | Welcome to Brain Stuff, a production of IHeartRadio. |
| 0:41.0 | Hey, Brain Stuff, Lauren Vogelbaum here. |
| 0:44.8 | Think about the way a building, like a house, is constructed. |
| 0:48.9 | You've got outer walls made of materials like brick or wood, with openings built in or cut in for windows, |
| 0:55.8 | which are frames that hold panes or sheets of glass. |
| 0:59.8 | Windows make a home feel bright, warm, and welcoming, because they let sunlight enter. |
| 1:05.7 | But why should a glass window be any more transparent than the wood or brick that surrounds it? After all, both |
| 1:13.1 | materials are solid and both keep out rain, snow, and wind. Yet wood is opaque and blocks |
| 1:19.6 | light completely, while glass is transparent and lets sunshine stream through unimpeded. |
| 1:26.5 | You may have heard some people and even some science textbooks try to explain this by saying |
| 1:31.4 | that wood is a true solid and that glass is a highly viscous liquid. |
| 1:36.5 | They go on to argue that the atoms in glass are spread farther apart and that these gaps |
| 1:41.3 | let light squeeze through. |
| 1:43.5 | They may even point to the windows of |
| 1:45.4 | centuries old houses, which often look wavy and unevenly thick, as evidence that the windows |
... |
Please login to see the full transcript.
Disclaimer: The podcast and artwork embedded on this page are from iHeartPodcasts, and are the property of its owner and not affiliated with or endorsed by Tapesearch.
Generated transcripts are the property of iHeartPodcasts and are distributed freely under the Fair Use doctrine. Transcripts generated by Tapesearch are not guaranteed to be accurate.
Copyright © Tapesearch 2025.