Results 171 to 180 of about 1,467,836 (216)
Some of the next articles are maybe not open access.
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).
openaire +2 more sources
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).
openaire +2 more sources
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 ...
openaire +2 more sources
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 ...
openaire +2 more sources
Sunburn, Sun Reactions, and Sun Protection
Pediatric Annals, 1987S B, Mallory, J C, Watts
openaire +2 more sources
The Chemical Composition of the Sun
Annual Review of Astronomy and Astrophysics, 2009M Asplund +2 more
exaly