# @USCDornsife on Twitter/X

- **Type:** Text
- **Original URL:** https://twitter.com/USCDornsife/status/1549076624703778819
- **Gondola URL:** https://gondola.cc/posts/1045215-USCDornsife-twitter
- **Posted:** 2022-07-18T17:00:22.000+00:00
- **Account Owner:** USC Dornsife (@USCDornsife) — https://gondola.cc/USCDornsife

## Caption

Why does the length of a day change? 🌇 

Prof. John Vidale and researchers from @USC_earth used seismic data to determine the rotation of Earth's inner core occasionally switches direction. Learn more from @bigthink. 

https://t.co/KwtfKe4ZrO

## Stats

- **Views:** 0
- **Likes:** 3
- **Shares:** 2
- **Comments:** 0

## Credits

These are the roles credited on Gondola. Credits may be incomplete.
A brand, account owner, or featured person is not necessarily the creator.

| Name | Username | Profile | Role |
| --- | --- | --- | --- |
| USC Dornsife | @USCDornsife | https://gondola.cc/USCDornsife | University |
| Michael Silver | @BigEastSilver | https://gondola.cc/BigEastSilver | Social Media Manager |

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