Chaosforge Forum

DoomRL => Discussion => Topic started by: So_1337 on February 23, 2012, 08:18

Title: The More You Know...
Post by: So_1337 on February 23, 2012, 08:18
(http://i.imgur.com/gZ3vg.jpg)
Title: Re: The More You Know...
Post by: Uitë on February 23, 2012, 08:24
He's lucky that the Phobos Base has some sort of artificial gravity going on, since 25,61 m/s is a lot more than the escape velocity that little rock has (which is 11,3 m/s, and Deimos has half that)!
Title: Re: The More You Know...
Post by: So_1337 on February 23, 2012, 08:29
You just made my day.
Title: Re: The More You Know...
Post by: Uitë on February 23, 2012, 08:56
Let's see, DoomRLGuy can reach speeds of up to 0.02s per move, and if each tile represents a meter, that's 50 m/s...
Title: Re: The More You Know...
Post by: Klear on February 24, 2012, 04:07
He's lucky that the Phobos Base has some sort of artificial gravity going on, since 25,61 m/s is a lot more than the escape velocity that little rock has (which is 11,3 m/s, and Deimos has half that)!

Well, that may explain the 200 pounds of equipment bit. He is quite capable of the same feats on Earth though...
Title: Re: The More You Know...
Post by: ZicherCZ on February 24, 2012, 04:36
He's lucky that the Phobos Base has some sort of artificial gravity going on, since 25,61 m/s is a lot more than the escape velocity that little rock has (which is 11,3 m/s, and Deimos has half that)!
Ummm ... Sorry?
Isn't the escape velocity 11,3 km/s?
(25,61 m/s is slightly over 90 km/h - the standard speed limits for cars in CZ. Not much of an escape velocity.)
Title: Re: The More You Know...
Post by: Uitë on February 24, 2012, 05:46
No, kilometers per second would be for planet sized objects. In fact, Earth's is 11,2 km/s. Phobos is tiny, roughly 27 km across at its longest and 18 at the shortest. Its mass is about 1,8 * 10-9 times Earth. So yeah, the escape velocity of Phobos really is measured in meters per second. The velocity needed to achieve orbit is considerably less, though I can't find good data on it and Phobos' irregular shape complicates matters further, but it should be around 8 m/s, which means that a good running jump could get you all the way across the moonlet, or maybe even into orbit! Of course, traction is also a function of gravity, so it may be hard to accelerate using just your feet...
Title: Re: The More You Know...
Post by: AlterAsc on February 24, 2012, 06:27
If each tile was a meter, than:
-DoomRLGuy sees objects up to 8 meters from him.Not much.Though in 360 degrees, which compensates a bit.
-basic DoomRLguy running speed is almost 5 kmph(wow!).
-If DoomRLGuy spent 40000 turns to win and  say he walked 30000 of them then his joyrney was at least 3 km long.It also means he needs a bit more than an hour to save phobos and deimos and beat hell.I guess that's why DoomRL doesn't have food - no time to get hungry.
-Doomrlguy can destroy wall of 2 meters of solid rock next to him and survive such explosion.In some cases he doesn't care at all.
-he can walk through 4 meters of lava almost bare-footed, withstanding i-don't-know-how-high temperature.
Title: Re: The More You Know...
Post by: ParaSait on February 24, 2012, 07:16
Lol, that one is old. But such a classic.
Title: Re: The More You Know...
Post by: Klear on February 24, 2012, 07:22
Obligatory XKCD link for people concerned with gravity wells (http://xkcd.com/681_large/)
Title: Re: The More You Know...
Post by: ZicherCZ on February 24, 2012, 09:40
No, kilometers per second would be for planet sized objects. In fact, Earth's is 11,2 km/s. Phobos is tiny, roughly 27 km across at its longest and 18 at the shortest. Its mass is about 1,8 * 10-9 times Earth. So yeah, the escape velocity of Phobos really is measured in meters per second. The velocity needed to achieve orbit is considerably less, though I can't find good data on it and Phobos' irregular shape complicates matters further, but it should be around 8 m/s, which means that a good running jump could get you all the way across the moonlet, or maybe even into orbit! Of course, traction is also a function of gravity, so it may be hard to accelerate using just your feet...
Oh. Sure, you're correct. Sorry for my mistake.