DaveC426913's latest activity

You are a man of many talents: Physics, math, authoring books, and building stuff. Nice door you made, man.

I'm working on a story. It's retro-fantasy, Jules Vernian or Wellsian "First Men in the Moon" style, perhaps a space opera. (more...

Thanks. Ideally, I want a minimal acceleration so that the otherwise short interplanetary trip takes days or weeks rather than hours...

To answer this directly - sure. If you don't have to worry about fuel. You could even walk out of a gravity well at a snails' pace, if...

Thanks guys. I'll transfer my subsequent questions over to the sci-fi forum.

Right. But I only care about orbits if I plan to turn my engine off. With sufficient fuel, orbital/fuel optimization becomes less of an...

...once you turn off the engine. Correct? So, if I have plenty of fuel I need not concern myself with what my craft would do were it...

I'm working on a story, and I want to ensure I have the basics straight. I'm not looking for any speculation, just facts. It is...

Collins motto: Anything worth doing is worth overcomplicating. Gawd I better get a job soon...

https://www.popsci.com/environment/why-snake-embryos-coil-right Article about embryonic asymmetry - snake embryos always start off...

Who? WHO Who? WHO!

I'd put it this way: the question "where was Feynman wrong?" isn't well-defined, because there's no single "the" explanation of the twin...

Depends on what one means by "reason why". Try this analogy: The rate at which an odometer reading increases is not directly affected...

...yet doesn't read a textbook on the cardinalities of infinite sets. The question is... is it because he Cantor won't?

This project is rated at 10/10 (determined by how many fingers I have at the end). (Oops. I see these pics were taken just a few...