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Showing posts with label astronomy. Show all posts
Showing posts with label astronomy. Show all posts
Friday, 1 April 2011

Moon's Orbital Radius Increasing

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In an unexpected and unprecented move, the European Space Agency announced this morning that their data shows that the Moon has started to ...
Friday, 18 March 2011

What are Constellations?

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Astronomy 2:  Constellations Constellations are man-made dot-to-dot pictures in the night sky, connecting the stars in the sky into pictur...
Sunday, 27 February 2011

Physics discussion: Escape Velocity

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The story goes that Isaac Newton was sitting under an apple tree, when  an apple fell on his head, and prompted him to wonder why it fell  d...
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Friday, 25 February 2011

Astronomy 1: Stars, Planets and Moons

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Following last night's visit to Keele Observatory , I thought it might be helpful to cover some of the basics of astronomy, and then mo...
Friday, 18 February 2011

Travelling on the surface of a star

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As a follow-up to my last post  calculating the distance to the Moon  I was asked to calculate the following: "Here is a question for...
Tuesday, 15 February 2011

Calculating the Earth-Moon distance

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This post follows up my previous post on geostationary satellites .  Long before we were launching satellites (even non-geostationary ones),...
Sunday, 16 January 2011

Maths Problems 5: Geostationary Satellites

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Now that I've shown how to estimate (or calculate) pi with a high degree of accuracy and precision, it's time to start using it! M...