Live data from Hacker News

Project Hail Mary – Stellar Navigation Chart

valhovey.github.io

191–200 of 255 posts

Re: Project Hail Mary – Stellar Navigation Chart

#191
post #98

Earlier quoted context omitted.

I don't know if I'd say it's the OG way. Both HJKL and numpad predate WASD, I think.

Are you comparing game bindings to vim bindings? Isn't that an apples/oranges thing?

Considering we're not discussing a game, it seems like a perfectly valid comparison.

Re: Project Hail Mary – Stellar Navigation Chart

#192
post #156

Earlier quoted context omitted.

How many 3D bodies are there? I'm curious because it renders really fast even on a relatively old mobile phone.

If I counted things correctly, 53,836. I wanted to hook into the THREE object and explore the scene, but I wasn't able to figure out how to bring it back into scope after it's been optimized out of the js context, so instead I searched through the bundle to find where it unpacks the data and did that manually.

It just boggles the mind how you can simply write a 3D program with a ready-made library today, instantiate tens of thousands of objects in 3D space, and the whole thing will render in real time on a phone without you ever having to worry about how that incredible performance is possible.

The power of computers comes at least partly from the fact that for many practical problems, they let you effectively pretend that resource constraints don’t exist at all.

Re: Project Hail Mary – Stellar Navigation Chart

#194
post #136
post #88

Earlier quoted context omitted.

Would dead-reckoning work or using some galactic sextant?

Maybe? Ultima (Proxima Book 2) by Stephen Baxter: “Oh, come on. This is just great. An imperial Roman starship! . . . We know they lack sophisticated electronics, computers. I wonder how the hell they navigate that thing.” “The drive isn’t always on,” said Titus. Stef realized that a more precise translation of his words might have been, *The vulcans do not always vomit fire.* “Every month they shut it down, and turn…

Ha!

Re: Project Hail Mary – Stellar Navigation Chart

#195
post #9

Just FYI the sizes of the planets, stars, and their orbits are not to scale at all. To get an idea of how empty space is, there are 63,360 inches in a mile, and 63,239 astronomical units in a light-year. So if you scaled everything down such that Earth was 1 inch from the Sun, Neptune would be 30 inches away and Alpha Centauri would be 4 miles away. If you were using a 4k display and had the Sun and Alpha Centauri vi…

FYI we have a up to scale model of the solar system in Sweden https://en.wikipedia.org/wiki/Sweden_Solar_System Come visit!

There is a Wikipedia List (German) [1] of quite a few of those (in Germany and in other countries). I stumbled upon it, while trying to find a link to the one in my home town I have wandered quite a few times, as I lived between Neptun and Pluto (it was built before Pluto was demoted), very close to Pluto. It ran the street I grew up in and was built to scale (1:4 bln scale) by a teacher who was a full blown astro nerd and in his free time taught quite a few of the local youth about space, planets, the science behind it, but also built rockets with us and let them fly.

I so fondly remember him, as he was one of those people being a massive inspiration to my life.

[1] https://de.wikipedia.org/wiki/Planetenweg

Edit: Added scale.

Re: Project Hail Mary – Stellar Navigation Chart

#196

Earlier quoted context omitted.

Biggest thing they all still get wrong for reasons of drama is showing humans wrestling with controls and flying like a fighter pilot. Real spaceships do not and will not have humans in the control loop except to specify a destination or target.

That’s actually how the cons work in Star Trek (and many other SciFi shows too). What officers do at the con once the ship is in motion is monitor ships systems and check for any external changes to the environment (such as other ships coming in for interception).

Yes sure I'd say that's the exception, can't think of many others.

Re: Project Hail Mary – Stellar Navigation Chart

#197

Earlier quoted context omitted.

Biggest thing they all still get wrong for reasons of drama is showing humans wrestling with controls and flying like a fighter pilot. Real spaceships do not and will not have humans in the control loop except to specify a destination or target.

That's how The Expanse generally worked, except when they needed to do things outside of normal circumstances.

I seem to remember there was a scene where a human piloted Rocinante through a space station, using what looks like joystick controls and a large viewscreen in front of him.

https://www.youtube.com/watch?v=_c9W-icdTmg&list=PL66J-Gd5vt...

Re: Project Hail Mary – Stellar Navigation Chart

#199

Earlier quoted context omitted.

That's how The Expanse generally worked, except when they needed to do things outside of normal circumstances.

I seem to remember there was a scene where a human piloted Rocinante through a space station, using what looks like joystick controls and a large viewscreen in front of him. https://www.youtube.com/watch?v=_c9W-icdTmg&list=PL66J-Gd5vt...

Yeah, exceptional circumstance.
Post reply on HN