solar activity

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noun Astronomy.

the sum of all variable and short-lived disturbances on the sun, as sunspots, prominences, and solar flares.

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Words nearby solar activity

solanaceous, solander, solanine, solanum, solar, solar activity, solar apex, solar battery, solar cell, solar cells, solar chariot

How to use solar activity in a sentence

Though the sky might be clear, there’s no solar activity happening.
The aurora borealis skipped this Alaska photography class. But some swinging light cords saved the night.|Bailey Berg|February 26, 2021|Washington Post
In the 17th century, Galileo was among the first to spy sunspots, slightly cooler areas on the sun’s surface with strong magnetic fields that are often a precursor to more intense solar activity.
Solar storms can wreak havoc. We need better space weather forecasts|Ramin Skibba|February 26, 2021|Science News
The team compared the dates of the magnetic event with previous records from ice cores that can reflect changes in solar activity.
A magnetic field reversal 42,000 years ago may have contributed to mass extinctions|Carolyn Gramling|February 18, 2021|Science News
These data suggested the solar activity was at a minimum at the time.
A magnetic field reversal 42,000 years ago may have contributed to mass extinctions|Carolyn Gramling|February 18, 2021|Science News

More significant are “grand solar minima,” decades-long periods of reduced solar activity that have occurred 25 times in the last 11,000 years.
How Earth’s Climate Changes Naturally (and Why Things Are Different Now)|Howard Lee|July 21, 2020|Quanta Magazine
The most recent activity had a high point of 3.6 on the Richter Scale.
26 Earthquakes Later, Fracking’s Smoking Gun Is in Texas|James Joiner|January 7, 2015|DAILY BEAST
“There is nothing whatsoever in the video which supports the charges—it shows no criminal activity,” Bakir said.
Sisi Is Persecuting, Prosecuting, and Publicly Shaming Egypt’s Gays|Bel Trew|December 30, 2014|DAILY BEAST
The masterpiece is huge, but structurally flawed and terribly vulnerable to seismic activity.
Florence Preps ‘David’ for the Big One|Barbie Latza Nadeau|December 25, 2014|DAILY BEAST
Moreover, trucks, dust, and boomtown stress are the effects of any large-scale industrial activity.
New York’s Conservative Fracking Ban|Jay Michaelson|December 20, 2014|DAILY BEAST
Some of them, including Kurnosova, escaped the country as they faced a possible jail term for their opposition activity.
Russians Plot Exiled Government in Kiev|Anna Nemtsova|December 16, 2014|DAILY BEAST
Other factors being equal, the amount of urea indicates the activity of metabolism.
A Manual of Clinical Diagnosis|James Campbell Todd
In disease, the amount of solids depends mainly upon the activity of metabolism and the ability of the kidneys to excrete.
A Manual of Clinical Diagnosis|James Campbell Todd
No young Cave Swallows were taken and gonads of adults were in various stages of reproductive activity.
Summer Birds From the Yucatan Peninsula|Erwin E. Klaas
It is the will directing the activity of the intellect into some particular channel and keeping it there.
Assimilative Memory|Marcus Dwight Larrowe (AKA Prof. A. Loisette)
Both animal and man seemed to be dozing, but they woke into activity when the sahib approached.
The Red Year|Louis Tracy