Sentences with phrase «less radiation during»

Not exact matches

The cooldown would be the result of what scientists call a grand minimum, a periodic event during which the Sun's magnetism diminishes, sunspots form infrequently, and less ultraviolet radiation makes it to the surface of the planet.

During these two significant events, «the amount of radiation that reached the surface was less than that which would done if these aerosols had not been there,» Mª Ángeles Obregón, researcher in the Physics department of the University of Extremadura (UEx) and the University of Évora (Portugal) and lead author of this study, explains.

AS&E says the radiation dose from a backscatter x-ray, less than 10 microrems, is the same received from natural sources during two minutes of an airplane flight at 30,000 feet.

Men who attended a structured yoga class twice a week during prostate cancer radiation treatment reported less fatigue and better sexual and urinary function than those who didn't, according to a clinical trial led by the Perelman School of Medicine at the University of Pennsylvania.

New research suggests the Sun might be headed towards a «grand minimum» of a centuries - long cycle, during which the Earth would receive much less ultraviolet radiation.

The roles of other ecological interactions in shaping divergent phenotypes during such radiations have received less attention.

It is not uncommon for teachers to mention optical telescopes during physics lessons but references to telescopes that make use of other types of radiation are less common.

Will less ice and snow in the Arctic during winter increase, decrease or be about the same radiation loss as years with thick multiyear ice?

Also during 1992 and 1993, ash and other particles from the volcano created a haze around the planet and slightly reduced the sunlight reaching Earth's surface and made the sun's radiation less direct and more diffuse.

2] intercepts it, 6 -7-8km high up, during the day — which means: a bit LESS radiation comes to the ground!

It has now become clear to scientists that the Medieval Warm Period occurred during a time which had higher than average solar radiation and less volcanic activity (both resulting in warming).

Vertical south facing collectors get automatic protection during the summer because the summer sun is much higher in the sky, and provides less effective radiation on the collectors.

Can you also explain precisely how the required thermal energy gets into and raises the temperature of the Venus surface during sunlit hours, noting that the surface temperature rises from 732K to 737K and the direct solar radiation into the surface is less than 20W / m ^ 2.

New research suggests the Sun might be headed towards a «grand minimum» of a centuries - long cycle, during which the Earth would receive much less ultraviolet radiation.

That jibes with the idea of a cooling trend during solar minimum; fewer spots means fewer faculae, so the Sun emits less Earth - warming radiation.

One explanation for the postulated reduction in solar radiation during the 17th century Maunder Minimum is that the Sun's surface was not only largely devoid of spots and faculae, but also less bright, overall.

The increased clouding during periods of cosmic ray maxima and sun spot minima may ensue from decreased solar radiation and lesser cloud dispersion.

So, the 729.9 W / m ^ 2 shown during the hours just before and after noon on a dry clear - sky day should be reading somewhat below 729.9 / (1 — 0.313) or less than 1062 W / m ^ 2 by measurement, near noon, on the equator, for the atmosphere itself, in those conditions, would not be absorbing as much direct solar radiation as the average shows in column C either (no clouds).