Question: I read that radioactive decay rates for some elements show cyclic variations, possibly due to varying solar neutrino…
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How is Antenna Efficiency Defined and How Can One Use Measurements of the Sun to Calculate It?
Question: I am an undergraduate Physics student carry out a research to determine the brightness temperature of the sun…
How Was Astronomy Used to Create the Mayan Calendar?
Question: How was astronomy used to create the Mayan Calendar? — Joe Answer: I think that the most comprehensive…
When Will the Sun Expand and Engulf the Earth?
Question: When will the temperature be unbearable here on Earth due to the Sun’s increasing size? — Charlie Answer:…
Radio Caustics and Cusps in the Earth’s Ionosphere
Question: Hi! My question is about ionospheric caustics (IC). In dynamic spectra of several radio telescopes during daily solar…
Calculating Mean Solar Radiation Flux Absorbed Per Unit Area at Earth
Question: The mean solar radiation flux absorbed per unit area of Earth’s surface is calculated as FS(1-A)/4, where FS…