Summer Meteor Showers, Short Summer Days and Ancient Arthropods
Science Quickly
Scientific American
4.4 • 1.4K Ratings
🗓️ 28 July 2025
⏱️ 9 minutes
🧾️ Download transcript
Summary
Transcript
Click on a timestamp to play from that location
| 0:00.0 | Why are businesses like HelloVet choosing Apple products and services? |
| 0:05.1 | So we started the business two years ago. |
| 0:07.2 | We had a few people who were used to PCs and this was their first foray into Macs. |
| 0:12.5 | But it's been super smooth getting everyone onto those devices and everyone seems really, really happy. |
| 0:18.0 | Find out how Mac can help you run and grow your business at apple.com forward slash |
| 0:23.6 | HelloVet. |
| 0:29.0 | Happy Monday, listeners. |
| 0:30.7 | For Scientific American Science Quickly, I'm Rachel Feldman. |
| 0:34.4 | It's been a while, but we're finally back with our usual science news roundup. |
| 0:39.0 | Let's catch up on some of the science news you might have missed in the last week or so. |
| 0:44.8 | If last Tuesdays seemed to just fly right by, that's probably because it was a little shorter than usual. |
| 0:52.7 | The International Earth Rotation and Reference System Service says that July 22nd was around 0.8 milliseconds short of the standard 24 hours. |
| 1:03.0 | That's slightly less dramatic than the almost 1.4 milliseconds that were missing from July 10th, |
| 1:09.0 | and scientists anticipate another ever so slightly truncated |
| 1:13.1 | day on August 5th. Now, while there were plenty of headlines about these missing fractions |
| 1:19.1 | of milliseconds, it's not actually news that the Earth's rotation varies in speed. The length |
| 1:25.4 | of a single rotation, also known as a day, is impacted by factors |
| 1:30.1 | like the movements of our planet's liquid core, variations in the jet stream, and the gravitational |
| 1:35.9 | pull of the moon. One 2024 study even suggested that melting polar ice has decreased Earth's |
| 1:43.0 | angular velocity enough to slow rotations down. |
| 1:46.5 | In fact, Earth's days have generally been trending longer, if you look back at the last few |
| 1:51.5 | billion years. Research suggests that at various points in the time before our species evolved, |
... |
Please login to see the full transcript.
Disclaimer: The podcast and artwork embedded on this page are from Scientific American, and are the property of its owner and not affiliated with or endorsed by Tapesearch.
Generated transcripts are the property of Scientific American and are distributed freely under the Fair Use doctrine. Transcripts generated by Tapesearch are not guaranteed to be accurate.
Copyright © Tapesearch 2026.

