[-] lucg@lemmy.world 1 points 4 hours ago

I wasn't meaning for it to be calling out so much as attempted humorous way of misunderstanding / literally interpreting your post 😅

I'm still not fully sure what you mean though. Does "root" mean VPS here (a system which you have root access to), and "tld" a domain name or even the DNS server for it?

[-] lucg@lemmy.world 1 points 4 hours ago

Blows my mind that debris falling freely on your head is the option to choose over covering yourself with a hard shell because the roof is more likely to come down in a way where a strong U shape around you gives better survival chances

[-] lucg@lemmy.world 1 points 3 days ago

Thank you! I'm going to take a look :)

[-] lucg@lemmy.world 4 points 3 days ago* (last edited 3 days ago)

You mean registrar. The registry is the place that administers the register of domains within a TLD (like .se or .mobi) and for some reason doesn't let you order domains unless you want to become a registrar first

I don't know which registry is the best but I can tell you about the worst. My registrar was also not amused by the mess that is AFNIC (twice now, concerning different domain names, and I don't have many domains so if I already had multiple problems...). They sit in Paris and operate the TLDs of former colonies

For registrars, I picked OVH because they're among the cheapest and their servers have been very reliable and fast across the months where I tested them before switching over. Their software is ass though, the forms frequently display three languages due to broken translations (their source language is French, my contract language is Dutch so a lot of elements are in Dutch, and then English trickles through where I guess they have a translation available but not to Dutch), multi-year ordering broke at some point and hasn't gotten fixed, automatic renewal is wonky to set up... but once it runs, it simply works well so I still recommend it for people who want good service on a budget. You can also set records by editing the zone file which I appreciate. I've had registrars before that wouldn't let you use certain record types; don't have such problems here

[-] lucg@lemmy.world 2 points 3 days ago* (last edited 3 days ago)

Wait, where in that priority list is tables?

I'm not in an earthquake-prone area so I have no idea but I thought the default advice was to get under a table or outside the building if you can make it. Never heard the bathtub.. is that a myth you're mentioning or?

[-] lucg@lemmy.world 5 points 3 days ago* (last edited 3 days ago)

TL;DR: If you post here, please emphasise the true text, e.g. put that up front!

I've noticed that I don't remember text literally, so if a post says "the sky isn't green" then I might tomorrow remember having read something about the sky and green but was this the correction or was this the myth? Was it even in the myths thread or did I read it elsewhere?

Better for me to read only true things, e.g.: "the sky is blue, don't believe the myth about a different color". Or mention the myth is in a spoiler tag or elsewhere in the text where it doesn't act like the headline or main takeaway

Apparently most people have this, see e.g.: https://online.ucpress.edu/collabra/article/6/1/38/114468/Repetition-Increases-Perceived-Truth-Even-for

[-] lucg@lemmy.world 2 points 3 days ago

Which root server letter did you get assigned?

[-] lucg@lemmy.world 1 points 5 days ago

The Martian is my favorite book and the movie was surprisingly close! Very well made.

Do you have recommendations for a fellow fan? I haven't seen the middle two you mentioned, are either of them similar in style? Like in the nerdy, clever ideas, positive vibes, collaboration, and plausible physics type of way

[-] lucg@lemmy.world 2 points 5 days ago

I have Toothless on a t-shirt and so few people recognise it it's crazy. Not even the kids these days! I love that character so much

[-] lucg@lemmy.world 1 points 5 days ago

Primer. Twice before and once after reading an explanation

[-] lucg@lemmy.world 1 points 5 days ago

Fuel, electric

I'll also take autonomous. No, a horse with umbrella doesn't count!!

[-] lucg@lemmy.world 3 points 5 days ago

You might be interested in this guy's reviews (sorry for the big tech link, I'm not aware that the information is available anywhere else): https://www.youtube.com/channel/UChNWxrTlmh4IRSevon1X93g "The quantified scientist". Posts a lot of videos but these kinds of devices, comparing them against each other or between versions sometimes

E.g. Whoop MG 5 vs 4 heart rate tracking: https://www.youtube.com/watch?v=9SzUDTBK-i0

33
submitted 5 months ago by lucg@lemmy.world to c/factorio@lemmy.world

Meet Ferry the Spaceship.

When you need a quick one-off delivery, Ferry is your chauffeur. We hired him because there is no traffic or possibility of collisions in space. This makes him excellently suited for the job: fast, reliable, and no driver's license required.

When this boat floors it, the first 100 km/s out of a planetary orbit are reached in less than a second. My trusty qalculater tells me that

> 100km/s /1s to gees
 (100 kilometers/second) / (1 second) ≈ 10197.2 gees

Being used to tens or perhaps hundreds of gs at most, I thought my calculation had gone wrong, but no: with one earth g at ~9.8m/s², these 100km/s² aren't a mere ten of those, there is an extra kilo of them.

Ten thousand earth gravities. Fancy that pulling on your buttocks! Ferry's leap into interplanetary space is, however, no unparalleled feat. Desiring to put this number into context, my deep dive research (i.e., opening Wikipedia) landed me at this comparison table. Coming in at 10'400 g, a Mantis Shrimp's claw during predatory strike accelerates as fast as Ferry's six rocket engines.

The next entry of the table is also of Factorial relevance: the electronics in military artillery shells is rated up to 15'500 g. I am glad I haven't pushed a little harder! Poor Ferry, his electronics broken, völlig losgelöst

I hope this fun fact made your day just a little better :)

61
submitted 7 months ago by lucg@lemmy.world to c/factorio@lemmy.world

The Factoriopedia lists one "/m" rate for each asteroid type at a given position on a space route, but you clearly have to kill more asteroids as you go faster so it cannot be "per minute" (Factorio uses /m to mean per minute elsewhere in the game). However, it cannot mean metre either because you travel at many kilometres per second: you'd get thousands of asteroids per second per type! Searching through the forums, Lemmy, and reddit, I didn't find an answer to this conundrum of space versus time

I've now gotten around to figuring out how the spawn rate varies :)

Method

  1. Let the ship fly at the indicated speed (V) for 10 minutes (plus margin, because the asteroids need a bit of time to move from spawn to the ship) between Solar System Edge and Shattered Planet
  2. Open the production stats window, set to 10 minutes, select the kills tab, and take a screenshot so that we can work with nonmoving values
  3. Calculate the ship's average position, namely: position at time of screenshot minus (5 minutes × V km/s)
  4. Look up the expected spawn rate at that position by linearly interpolating between the nearest values in the Factoriopedia (they are precise to 40 km, so we know the value at 0km, ..., 960km, 1000km, 1040km, etc.)
  5. Calculate the ratio between how many huge asteroids were killed per minute (per the kills graph) and how many huge asteroids should have spawned
  6. Plot that value on the graph as a percentage

Results

There seem to be two or three formulas in use: one for 10km/s and below (it appears as though this is in effect when your ship touches 10.xx km/s every few seconds, but that seems strange), one for a rapid but smooth transition (or maybe they blend the two other formulas together?), and then one for speeds above 15 km/s. The middle formula may also just be a blend of the other two, perhaps they average the result between 10 and 15 km/s (or apply a sigmoid or whatnot)

  • The formula for slow speeds seems to spawn 1.1x (or 10%) more asteroids as the speed doubles from 5 to 10 km/s (not many data points in this range; value is very approximate)

  • The formula for high speeds spawns about 1.5–1.7x more asteroids when you go 2x faster

The Factoriopedia value isn't distance-based (one could think "/m" is a shorthand for "/10km" or so), because then it would have been 1:1 linear: when you cover twice as much distance per unit of time, the number of kills would double. It also isn't time-based, because then the graph should have shown a flat line at 100%. It appears to be a derivative of your ship's speed (and perhaps other factors, such as its width)

Sorry for the sparse data above 50 km/s btw. I had spent a bunch of time and already pretty much gotten the answer when I realised that I could go back to an earlier save and do the same thing for an easier section of the route where the ship can safely fly faster. I collected just these two data points and, when that also looked close enough to linear, called it "good enough" =)

Discussion/limitations

  1. I wonder if the Factorio developers made Promethium much more common if you fly slow, to make it easier to collect for players that didn't build a great ship

  2. Not all asteroids that spawn get killed, so the graph must be wrong in absolute terms, i.e., the actual spawn rate is higher than what I calculate using the "killed" statistic. My railguns' range about covers as far as the huge asteroids spawn out and I see that only a few on the edges (faded out, only visible when hovering over them) make it down the length of the ship, so the absolute number is probably not super far off. In any case, my personal goal was to figure out the relative number, not the absolute one

  3. Yes, I know these speeds are rookie numbers compared to some of the things I see online. But it's all my own work :). I purposefully don't look at other designs in detail because the satisfaction of figuring it out is the point of the game for me. The "not invented here" syndrome is a problem for my workplace, not my gaming experience :D

Future work

A. I'm also curious how platform width affects the rates, but did not have time to design another ship for trying that out

B. Check that the results are identical on other routes

C. Check how it behaves at and below zero speed

Supplementary material

The Factoriopedia does not show the total spawn rate and so it's hard to see what the difficulty is of each segment towards Shattered Planet. I've added a few data points to what I needed for the above calculation anyway and now we have the answer to that as well:

Basically a copy of the Factoriopedia graph, but with two lines added: the sum of the four values (sharp increase until 674 at 1.6Mm, then roughly flat (if you plot it on a log scale with a fat marker) until 3Mm, and finally it increases until 795 at 3.96Mm), and the sum of the three base asteroid types, that is, excluding Promethium (peaks at 1.6Mm, just shy of 400)

Spreadsheet with raw data for your enjoyment: https://lucgommans.nl/p/factorio/space-age-asteroid-spawn-rate-factoriov2.0.48.ods

Feel free to share the graphs or infos around, consider it CC-BY-SA or a similar flavor if you like ^^

46
submitted 1 year ago by lucg@lemmy.world to c/factorio@lemmy.world

Shows how https://www.factorio.com/galaxy grew over time. Also has a tool to show where your star is and find whom you're neighbors with :)

view more: next ›

lucg

joined 1 year ago