Straight Line of the Day: The Earth Is Pulsating. Because …

Straight Line of the Day: The Earth is pulsating. This is because …

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Earth Keeps Pulsating Every 26 Seconds. No One Knows Why.
Popular Mechanics | 10/30/2020 | Caroline Delbert

Why is Earth pulsating every 26 seconds, and why can’t scientists explain it after 60 years? This is an enigma wrapped in a periodically predictable mystery motion. It could be a harmonic phenomenon, a regular seismic chirp caused by the sun’s energy, or a beacon drawing scientists to its source to begin a treasure hunt.

In the early 1960s, a geologist named Jack Oliver first documented the pulse, also known as a “microseism,” according to Discover. Oliver, who worked at Columbia University’s Lamont-Doherty Geological Observatory at the time, heard the noise, but didn’t have the advanced instruments seismologists have now at his disposal.

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