Recent content by JGHunter

Thank you! Which Wikipedia page did you find this on by the way?

Hi, I'm writing a short story which addresses an issue in time travel that I don't really see getting addressed, and I was wondering where I could find the original quote where it is written that mass or energy can neither be created nor destroyed? I'm aware the original won't be in English...

It's been almost a year exactly since I went away having thought about these numbers. It turns out the project I'm working on results in a bulge of less than half a kilometre over a pole-to-pole distance of over 30,000km! Not even worth accounting for. But at least I learned something and that...

Hi, sorry it's been a while, I had a look at that and I feel I need a different equation. I want to know if I can measure how much a bulge will be if I know the equatorial radius, the mass of the planet and its angular velocity, but not its polar (rp) or mean (r) radius, or its density (ρ). The...

with $$ \frac {m r_e \omega_e^2}{m r_m \omega_m^2}=\frac{r_e}{r_m} \left( \frac {\omega_e} {\omega_m} \right ) ^2 $$ Where m = 1 (one piece of Mars and one piece of Earth of equal mass) $$ \frac {(1)(6,378 km)(1,670 km/h)^2}{(1)(3,402.5 km)(868.22 km/h)^2}=\frac{6,378 km}{3,402 km} \left(...

Right okay sorry, I'll try playing it out.

Sorry for being a simpleton, but what does ## _e ## represent here? I've looked it up and I think it means eccentricity, but what kind?

I was looking at the numbers regarding the planets in our solar system, their bulge, their flattening ratio and their rotational speed. I know that rotational speed plays a role in this flattening, however what else is at play? For example, Earth's flattening ratio is nearly 1:300, whilst Mars...

I am more of a budding (sorry) botanist / plant scientist, but I have an interest in astrophysics, how planets came to be the way they are and how this can help us understand what makes a habitable planet. I'm also starting something of a novel regarding a failing terraformed utopia. I won't...