Definition & Betydelse | Engelska ordet SUNSPOTS

Definition av SUNSPOTS

1. böjningsform av sunspot

Exempel på hur man kan använda SUNSPOTS i en mening

• The Maunder Minimum, also known as the "prolonged sunspot minimum", was a period around 1645 to 1715 during which sunspots became exceedingly rare.
• Spots as small as sunspots have not been detected on other stars, as they would cause undetectably small fluctuations in brightness.
• Following the advent of telescopic solar observation with Galileo's 1611 observations, the intensity of solar maxima is typically measured by counting numbers and size of sunspots; for periods previous to this, isotope ratios in ice cores can be used to estimate solar activity.
• Over the period of a solar cycle, levels of solar radiation and ejection of solar material, the number and size of sunspots, solar flares, and coronal loops all exhibit a synchronized fluctuation from a period of minimum activity to a period of a maximum activity back to a period of minimum activity.
• They used a vacuum thermocouple to measure the infrared radiation and thus the temperature of the Moon which led to the theory that the Moon was covered with a thin layer of dust acting as an insulator, and also of the planets, sunspots and stars.
• In reality, radio propagation changes along with the weather and tropospheric ducting, and occasionally along with other upper-atmospheric phenomena like sunspots and even meteor showers.
• When going further back in time, one has to rely on irradiance reconstructions, using sunspots for the past 400 years or cosmogenic radionuclides for going back 10,000 years.
• After studying the work of Gustav Spörer, who examined old records from the different observatories archives looking for changes of the heliographic latitude of sunspots, Maunder presented a paper on Spörer's conclusions to the Royal Astronomical Society in 1890 and analyzed the results to show the presence of a prolonged sunspot minimum in the 17-18th century in a paper published in 1894.
• Lawton, back in his laboratory, had almost given up on his thirty-year experiment into synthetic cells (imitation eukaryotes composed of non-organic material and designed to mimic organic cells, in order for enough of them to be fashioned into true-to-life prosthetic organs and body parts) when he noticed the sunspots had irradiated his tank of synthetic proteins and brought them to life.
• Franz Xaver von Zach once advised him to look for comets when sunspots were visible, though in doing so Zach may have inadvertently given Pons very good advice.
• In the story set on a distant planet, sunspots produce a "purplish haze" which has a disorienting effect on the inhabitants.
• In 1908, he used the Zeeman effect with a modified spectroheliograph to establish that sunspots were magnetic.
• Distinguished for his contributions to Astronomical Physics by spectroscopic observations of eclipses, solar prominences, and sunspots, and by experimental researches bearing on their interpretation.
• Johann Goldsmid, better known by his Latinized name Johann(es) Fabricius (8 January 1587 – 19 March 1616), eldest son of David Fabricius (1564–1617), was a Frisian/German astronomer and a modern era discoverer of sunspots in 1611, preceded by Thomas Harriot and followed by Galileo Galilei.
• At a maximum, the Sun is peppered with sunspots, solar flares erupt, and the Sun hurls billion-ton clouds of electrified gas into space.
• Obsessed with discovering why he was unable to exhibit such super-strength under similar conditions, Banner hypothesizes that high levels of gamma radiation from sunspots contributed to the subjects' increase in strength.
• Among the BAA's first presidents was Walter Maunder, discoverer of the seventeenth century dearth in sunspots now known as the Maunder Minimum which he achieved by analysing historical observations.
• The observatory factor compensates for the differing number of recorded individual sunspots and sunspot groups by different observers.
• The English scholar Thomas Harriot was probably the first to observe sunspots telescopically as evidenced by a drawing in his notebook dated December 8, 1610, and the first published observations (June 1611) entitled “De Maculis in Sole Observatis, et Apparente earum cum Sole Conversione Narratio” ("Narration on Spots Observed on the Sun and their Apparent Rotation with the Sun") were by Johannes Fabricius who had been systematically observing the spots for a few months and had noted also their movement across the solar disc.
• In October 1945, together with Joe Pawsey, who acknowledged her potenial in the field of radio astronomy and motivated her to apply her skills using radios techniques, and Lindsay McCready, she wrote to Nature documenting a connection between sunspots and increased radio emissions from the Sun (published February 1946).

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