[HN Gopher] Zero point leet seconds (2018)
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Zero point leet seconds (2018)
Author : susam
Score : 108 points
Date : 2022-11-06 11:07 UTC (11 hours ago)
(HTM) web link (susam.net)
(TXT) w3m dump (susam.net)
| thefilmore wrote:
| You can't go faster than leet.
| jesse__ wrote:
| And this is why I come to HN
| layer8 wrote:
| This proves that Earth is a truly leet planet.
| karmakaze wrote:
| And flat (with edge-wrapping)? For light to go 'around' the
| world--it travels in a straight line.
| Scaevolus wrote:
| Remember, the speed of light in fiber optic cables is ~1.47x
| slower than its speed in a vacuum, which means an equatorial
| transit is 0.2s instead. This difference is significant enough
| that some High Frequency Trading firms have used microwave links
| to reduce latency from Chicago to New York from 7.5ms to 5ms.
| https://arstechnica.com/information-technology/2016/11/priva...
| hwillis wrote:
| Well. Significantly more than that due to latency from switches
| etc and also because of the fact that there's so little land
| along the equator, meaning there's only one cable that travels
| roughly equatorially. It's from Fortaleza, Brazil to Kribi,
| Cameroon: https://www.submarinecablemap.com/
|
| If you set up a bunch of good first-surface mirrors, I'm pretty
| sure you could get to pretty much the speed of light. You'd
| have to put them pretty high up in the air to avoid hitting
| things (a problem for cables as well, obviously) but putting
| the beam 2km in the air would still only lengthen the path by
| 4pi km, or .03%.
|
| I have always found it very neat that the propagation speed of
| a light wave in glass is roughly the same as electrical waves
| in a coaxial cable. Both are shockingly slow compared to
| air/vacuum, but for _completely_ different reasons. In both
| cases the advantages in signal integrity are immense.
| an1sotropy wrote:
| If I get nothing else done today, I will at least have learned
| this cool fact/number.
| gdtyh wrote:
| As the manager of a vulnerability research team, I almost always
| organise my team's meetings to start at 13:37. It's become
| customary for us to refer to it as "leet o'clock".
| bitwize wrote:
| L33t o'clock has been a thing for me for years now. I
| experience that weird phenomenon where you look at a clock and
| it happens to be 11:11, except for me it's 13:37 and I'm like
| "hey, it's l33t o'clock!"
|
| There's another one I call "Razor o'clock" at 7:11 pm, i.e.,
| 19:11.
| unnouinceput wrote:
| I am born at leet o'clock. Usually I say 13:40 for rounding
| reasons and before today I never thought about it this way,
| even though I am familiar with leet speak. But from this day on
| I'll be proud of my birth time, no more rounding.
| b4je7d7wb wrote:
| I'm qurious when you would say your birthtime? I don't even
| know mine.
| maxnoe wrote:
| I only learned it when I got married and had to hand in a
| copy of my entry in the birth registry.
|
| Missed leet time by one minute though...
|
| In our working group (astrophysics) leet o clock is the
| traditional time for cake.
| cauefcr wrote:
| Many cultures care about it for astrology reasons.
| blitzar wrote:
| Good thing are only 60 seconds in a minute other wise the
| _8:00:85_ "boobs o'clock" morning meeting would be awkward.
| codetrotter wrote:
| Leet o'clock is my favourite time of the day. It also just so
| happens that right now as I am typing this the current time in
| my time zone is 13:37 :D
|
| Edit: the time changed to 13:38 just before I hit submit :(
| vasco wrote:
| Similar to "the game"[0] (you all just lost), for many years
| in a group of friends we'd text each other "leet" at 13:37
| whenever we'd notice and whoever did it first won that day.
| Obvious gentleman's agreement to not just use an alarm clock
| and notice it naturally during the course of the day. Have
| been doing it for about 20 years now with one of them that
| kept it up.
|
| [0] https://en.m.wikipedia.org/wiki/The_Game_(mind_game)
| Sharlin wrote:
| Used to be common on IRC as well.
| Naga wrote:
| I'm shocked that you do this to be honest, because I have
| my friends and I also do this. I didn't realize that we
| weren't alone. Not that I thought we were special, moreso
| that we didn't think anyone else would want to do something
| so silly.
| QuadmasterXLII wrote:
| The other explanation is that you two are friends who
| don't know each other's usernames
| vasco wrote:
| Looks from the profile the other user is from Canada and
| I was referring to a friend group from childhood in
| Portugal, none of which are in Canada nowadays. I think
| we're just not so special :)
| isaacremuant wrote:
| When do people eat? I presume not from 13 to 14.
|
| Also, how long do the meetings last? If you're serious, it's a
| nice gimmick but terrible for actual time management.
| gdtyh wrote:
| They're quite short meetings, typically less than 22.284
| minutes apiece.
| raldi wrote:
| .284?
| [deleted]
| potench wrote:
| Should be .2833333 1337 seconds
| e38383 wrote:
| I had no idea that I needed to know that, but now I don't know
| how I could live without it.
| codeflo wrote:
| I'm not sure that's worth remembering specifically. You should
| really already roughly know the Earth's circumference, 40k km,
| and the speed of light, 300k km/s. 40/300 = 4/30 = (4/3)/10 =
| (1.33)/10 = 0.133.
| TheRealPomax wrote:
| Which is not as fun as 0.leet: knowing that there's a 0.leet is
| good trivia, and no trivia is "worth" remembering... you just
| remember it because it's interesting and fun =)
| zufallsheld wrote:
| https://xkcd.com/1053/
| mightybyte wrote:
| Yep. I say that because I was very recently looking into the
| network latency for computers on the other side of the world. I
| ran the same theoretical calculation of circumference of the
| earth divided by the speed of light and measured ping times and
| they lined up quite well. Now, to be clear, OP definitely has one
| up on me because I didn't notice the 1337, but it stuck in my
| head that to one significant digit it's ~100 milliseconds to get
| around the world. Now four significant digits stick in my head.
| Thanks OP!
| cgs wrote:
| Flew Newark to Portland on UA 1337 the other day. If only that
| flight took 0.1337 sec...
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(page generated 2022-11-06 23:01 UTC)