Tag Archives: Spaceflight

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

The Celestial View From A Relativistic Starship: Part 3

This is the third of a series of posts about what the sky would look like for the passengers aboard an interstellar spacecraft moving at a significant fraction of the speed of light, like the Bussard interstellar ramjet above. In the first post, I wrote about light aberration, which will cause the apparent direction of … Continue reading The Celestial View From A Relativistic Starship: Part 3

The Celestial View From A Relativistic Starship: Part 2

In my previous post, I described the visual appearance of the starry sky for an observer moving at a substantial fraction of the speed of light—for instance, aboard a working Bussard interstellar ramjet, like the one pictured above. I’ll recap the terminology I established in that post, which comes from Special Relativity. We call the … Continue reading The Celestial View From A Relativistic Starship: Part 2

The Celestial View From A Relativistic Starship: Part 1

This is another one of those topics (like Coriolis effect and human vacuum exposure) that many science fiction writers seem to know enough about to include it in their stories, but not quite enough to get right. So in this post (and an estimated three subsequent posts) I’m going to write about what the starry … Continue reading The Celestial View From A Relativistic Starship: Part 1

Coriolis Effect In A Rotating Space Habitat (Supplement)

I’ve received a few enquiries in response to my post “Coriolis Effect In A Rotating Space Habitat”, concerning something I didn’t address at the time—what happens to the trajectory of objects moving parallel to the axis of rotation. (Though I did mention this topic in passing in my post about the Coriolis effect in general.) … Continue reading Coriolis Effect In A Rotating Space Habitat (Supplement)

Revell 1/96 Saturn V: S-IVB Stage

It’s been a while since I made any progress on this kit. Last time, I described building the Spacecraft/Lunar Module Adapter and Instrument Unit assembly. Moving down the launch vehicle, this time I’m building the S-IVB stage, which was the third stage of the Saturn V—the “small” one that pushed the Apollo stack into Earth orbit … Continue reading Revell 1/96 Saturn V: S-IVB Stage

Coriolis Effect In A Rotating Space Habitat

In a previous post describing the Coriolis effect, I mentioned its relevance to space travel—if a rotating habitat is being used to generate simulated gravity, Coriolis deflection can interfere with the performance of simple tasks and, at the extreme, generate motion sickness. As an example of the sort of effect you could expect to encounter, … Continue reading Coriolis Effect In A Rotating Space Habitat