Question: The mean solar radiation flux absorbed per unit area of Earth’s surface is calculated as FS(1-A)/4, where FS…
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If the Sun Suddenly Disappeared Would We Notice It Immediately?
Question: Hi National Radio Astronomy Observatory people! My name is Israel Romero and I am a Software Engineer. So,…
Why Do High Tides Happen Both on the Side of the Earth Facing Toward and Away from the Moon?
Question: During new moon, moon is between earth and sun. The spring tide then occurs. The height of high…
Do We Observe the Sunrise Six Minutes After it Actually Occurs?
Question: We know sunlight takes about 8 min to reach earth. So we see sunrise 8 min later. Also…
Why Are Ocean Tides on Earth Larger During a Full Moon?
Question: If I am correct in assuming that the moon’s apparent waxing and waning are merely the effects of…
Is There a Place Where One Can See Daily Radio Images of the Sun?
Question: Is there a place that posts daily images of the Sun in a radio frequency, perhaps 21 cm,…