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Space Science Reviews, 1998
Various observable properties of the Sun are compared with those of solar-type stars. It is concluded that the Sun, to a remarkable degree, is “solar-type”. As regards its particular mass and age, and probably its non-binarity, “anthropic” explanations may seem in place.
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Various observable properties of the Sun are compared with those of solar-type stars. It is concluded that the Sun, to a remarkable degree, is “solar-type”. As regards its particular mass and age, and probably its non-binarity, “anthropic” explanations may seem in place.
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AJN, American Journal of Nursing, 1933
physicists have helped to increase our knowledge of the nature of light. Still, even today, we do not know exactly what light is. Many different theories are held. One of the most recent, and that which well explains the action of ultraviolet on the body, is as follows. Light is composed of billions of light particles. These light particles are so tiny
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physicists have helped to increase our knowledge of the nature of light. Still, even today, we do not know exactly what light is. Many different theories are held. One of the most recent, and that which well explains the action of ultraviolet on the body, is as follows. Light is composed of billions of light particles. These light particles are so tiny
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The Sun, Sun Myths, and Sun Worship
1976Most of us take the sun for granted. We know it to be a heavenly body subject to the same laws of physics that govern events on earth. For example, we know that the earth’s axis is not vertical to the earth’s orbit around the sun; that the resultant oblique angles at which the sun’s rays strike the earth cause seasonal variation in radiation (as Figure
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Science, 2022
Searches during twilight toward the Sun have found several asteroids near Venus ...
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Searches during twilight toward the Sun have found several asteroids near Venus ...
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Applied Optics, 2005
Special variants of the Novaya Zemlya effect may arise from localized temperature inversions that follow the height profile of hills or mountains. Rather than following its natural path, the rising or setting Sun may, under such circumstances, appear to slide along a distant mountain slope.
Wayne P S, Davidson +1 more
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Special variants of the Novaya Zemlya effect may arise from localized temperature inversions that follow the height profile of hills or mountains. Rather than following its natural path, the rising or setting Sun may, under such circumstances, appear to slide along a distant mountain slope.
Wayne P S, Davidson +1 more
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Sun Exposure and Melanomas on Sun-Shielded and Sun-Exposed Body Areas
2014Malignant melanoma is a tumor that arises from melanocytes and accounts for around 4% of all malignancies in Europe and Northern America and for about 11% in Australia and New Zealand. About 10% of primary melanomas arise from sites not exposed to sun. Acral lentiginous melanoma, mucosal melanoma (in the oral cavities, nasal sinuses, genital tract and ...
Asta, Juzeniene +2 more
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Science, 1980
Observations of 23 transits of Mercury in front of the sun between 1736 and 1973 show no indication of any significant change in the diameter of the sun. Regression analysis yields a decrease of the angular diameter, as viewed from the earth, of under 0.3 arc second per century (> 90 percent confidence limit).
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Observations of 23 transits of Mercury in front of the sun between 1736 and 1973 show no indication of any significant change in the diameter of the sun. Regression analysis yields a decrease of the angular diameter, as viewed from the earth, of under 0.3 arc second per century (> 90 percent confidence limit).
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Dermatologica, 2009
Sunlight is the main environmental factor influencing human skin. The sun-light’s terrestrial spectrum is different from the extraterrestrial one, sunlight being changed by the filter effect of ozone and particles in the stratosphere and atmosphere. Attention is drawn to the influence of ‘supersonic transporters’ (SST) and chlorofluoromethanes on this ...
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Sunlight is the main environmental factor influencing human skin. The sun-light’s terrestrial spectrum is different from the extraterrestrial one, sunlight being changed by the filter effect of ozone and particles in the stratosphere and atmosphere. Attention is drawn to the influence of ‘supersonic transporters’ (SST) and chlorofluoromethanes on this ...
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