Tag Archives: Astronomy

We Are Stardust

A few months ago I ran into the periodic table above, detailing the cosmological origins of the chemical elements. And it occurred to me that I could quantify Joni Mitchell’s claim that “we are stardust”. How much of the human body is actually produced by the stars? But before I get to that, I should probably explain a little about the various categories indicated by the colours in the chart above.

Rebekah Higgitt (Ed.): Maskelyne

[D]espite Maskelyne being portrayed in popular literature as a self-seeking academic astronomer with a less-than-personable style, the stories of his interaction with the Nautical Almanac [human] computers reveals that he went to some lengths to provide stop-gap employment to mathematically inclined people, as well as providing long-term stable employment for those with families to support. … Continue reading Rebekah Higgitt (Ed.): Maskelyne

M*A*S*H And The Moon Landings

I’ve got into the habit of checking what the Internet Movie Database has to say about films after I’ve watched them. After rewatching Robert Altman’s 1970 classic M*A*S*H, I happened on something odd in the film’s “Trivia” section at IMDb: The loudspeaker shots and announcements were added after editing had begun, and the filmmakers realized … Continue reading M*A*S*H And The Moon Landings

The Celestial View From A Relativistic Starship: Part 4

This series of posts is about what the sky would look like to an observer travelling at close to the speed of light. In Part 1, I described the effects of light aberration on the apparent position of the stars; in Part 2, I introduced the effects of Doppler shift on the frequency of the … Continue reading The Celestial View From A Relativistic Starship: Part 4