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Category Archives: General Science
Geothermal Power Math
One concept that intrigues me is the idea that the Earth would be warm underground even without the Sun present. See the Wikipedia for an interesting discussion of this topic. My favorite science fiction story is After Worlds Collide, which is tale that includes a rogue planet called Bronson Beta. This rogue planet survived a very long trip through the bitter cold of interstellar space. Its former inhabitants had built deep underground tunnels that provided a warm sanctuary for travelers from Earth. Continue reading
Posted in Geology, History of Science and Technology
1 Comment
Granite Self-Heating Math
Introduction I came across the following statement in an article about the self-heating of the granite in an article about how radioactivity heats the interior of the Earth. Radioactivity is present not only in the mantle, but in the rocks … Continue reading
Posted in Geology
2 Comments
Whale Math
Introduction A reader asked a question that I answered in a comment response, but others may be interested so I will include my response as a post. One of my most read blog posts is about the amount of vertical … Continue reading
Posted in General Mathematics, General Science
3 Comments
Fireflies and Supernova
Introduction Scientists always face the problem of making their work accessible to the public. Accessibility is crucial to scientific research continuing to receive funding. Part of this accessibility is creating analogies that relate scientific data to aspects of everyday life. … Continue reading
Posted in Astronomy, General Science
Comments Off on Fireflies and Supernova
Too Many Definitions of Candle
I have been doing some reading about photometry lately and I noticed that the unit of lighting called the candle has had quite a history. I used to work for a metrology company and I have always been interested in … Continue reading
Atmospheric Filtering of Sunlight
Introduction Today, I was asked a question about the amount of visible optical power that actually reaches the Earth's surface. I also need to compute the illuminance of this optical power, which tells me how bright this light appears. The … Continue reading
Posted in Astronomy, General Science
1 Comment
Star Visual Magnitude Math
Introduction I have been reading a number of interesting astronomy articles lately. These articles often refer to the apparent and absolute magnitude of a celestial object or event (example). I thought I would work through a bit of the math … Continue reading
Posted in Astronomy, General Science
1 Comment
Tornado Frequency Math
Introduction I was watching Global Public Square on CNN when they presented a trivia question that seemed interesting. Which nation has the most tornadoes relative to its land area? (a) Britain, (b) Bangladesh, (C) Belgium, (D) United States. The answer … Continue reading
Posted in General Science
2 Comments