Days Feel Longer? Turns out this is the reason

SEMARANGSELATAN, AYOSEMARANG.COM — If you often feel like the days are longer, there’s no need to worry.

Because, according to recent research, the day is longer than the night due to the slowing rotation of the earth.

Launching Suara.com, research published in Nature Geoscience shows the Earth’s rotation is gradually slowing down.

It has to do with the oxygenation of Earth’s atmosphere.

Since its formation about 4.5 billion years ago, Earth’s rotation has slowed and caused days to feel noticeably longer.

The blue-green algae (cyanobacteria) that appeared and reproduced about 2.4 billion years ago are capable of producing a lot of oxygen, as a metabolic byproduct as Earth days get longer.

A perennial question in Earth science is how Earth’s atmosphere gets its oxygen and what factors are controlled when this oxygenation occurs, said Gregory Dick, a University of Michigan microbiologist.

The research also shows Earth’s rotation has important effects on the pattern and timing of Earth’s oxygenation.

Also according to the fossil record, days at 1.4 billion years ago were only 18 hours long and half an hour shorter than today at 70 million years ago.

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Evidence suggests humans gain an additional 1.8 milliseconds in a century.

The rotation slowdown is also associated with the Great Oxidation Event.

That is when cyanobacteria appear in large numbers so that the Earth’s atmosphere experiences a sharp and significant increase in oxygen.

Without oxidation, scientists think life as it is known today could not have arisen.

The team of experts also found a microbial community in Lake Huron which is considered an analogue of the cyanobacteria responsible for the Great Oxidation Event.

Purple cyanobacteria that produce oxygen through photosynthesis and white microbes that metabolize sulfur, compete in the microbial community at the bottom of the lake.

At night, white microbes rise to the top and carry out sulfur metabolizing activity.

Meanwhile, when it’s daytime and the Sun is high enough in the sky, the white microbes retreat to be replaced by purple cyanobacteria.

nIn other words, if the Earth’s day is longer, then purple cyanobacteria can carry out photosynthesis and produce more oxygen.

Even so, it is still a hypothesis of experts.

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