observantTrapezium

joined 1 year ago
[–] observantTrapezium@lemmy.ca 5 points 1 week ago (1 children)

As it should be... Navigators could determine latitudes pretty accurately by using astronomy. It was the longitude that was a big problem (maybe that's part of the reason Japan is placed in the middle of the Pacific).

[–] observantTrapezium@lemmy.ca 1 points 1 week ago

I'm pretty sure I'm in my fourth pair now.

[–] observantTrapezium@lemmy.ca 3 points 3 weeks ago* (last edited 3 weeks ago)

My top intro music shows: TNG, VOY, DS9, DIS, SNW, LD
Honorable mention: ENT
Top movie theme: First Contact

[–] observantTrapezium@lemmy.ca 2 points 3 weeks ago

Playing 4D chess /s

[–] observantTrapezium@lemmy.ca 1 points 1 month ago

It's not me who didn't use a tool, it was the other guy.

[–] observantTrapezium@lemmy.ca 5 points 1 month ago

Only because we are used to it.

[–] observantTrapezium@lemmy.ca 22 points 1 month ago (14 children)

I just had to coordinate an online meeting with some guy at a company, I had no idea where he's based but he suggested time slots in EST (I'm in Toronto). I asked him twice if he's sure, thinking he may be based outside of North America and doesn't know that Toronto currently follows EDT which is GMT-4h, and he just responded "Eastern Standard Time".

And of course he actually meant EDT. Turns out he is based in North America, just dumb.

Fuck timezones, but more than that fuck daylight saving time. You want an extra hour of sunshine after work in summer? Shift the work schedule, not the fucking clock!

[–] observantTrapezium@lemmy.ca 6 points 1 month ago (3 children)

Interestingly, that is not the case. Month names can differ in different languages. I discovered the hard way that Ukrainian has completely different names for months when I had to connect to a Linux machine in Kyiv with Ukrainian locale (I can read Cyrillic, but the abbreviated month names meant nothing to me). The name for August is "serpen" by the way, and it is similar in some other Slavic languages. Also Arabic has its own month names based on Akkadian, August is "ab" but an Arabized version of the word August is also commonly used and understood. Finally, in Mandarin and presumably other Chinese languages, Gregorian months are only referred to by their number, so we are in "bayue" (lit. eight(th) month).

[–] observantTrapezium@lemmy.ca 26 points 1 month ago (6 children)

The start of the calendar has to be arbitrary, there's no way around that as it's not feasible to measure the time since the beginning of the universe with good enough accuracy.

As others commented, the Julian Day is a time measure that is actually used in astronomy, and Unix time is a time stamp standard (not really a calendar, although it could be if we got used to it) that is mostly a way to store time points, not really to consume them before converting to a more readable form.

But as a scientist who is wholly irreligious, I'm not overly bothered by using the Gregorian calendar, even though it has Christian (and a lot of pre-Christian) elements. Its annoyances (different numbers of days in each month, weeks not aligning with years, leap years etc.) are due to the fact that we decided to measure time in these arbitrary units. At least it's universal in the modern era (often in conjunction with another calendar), and everywhere you go people understand what "August 5, 2024" means (although August might have to be translated to the target language, since the names of the months are not universal).

That's more than you can say about non-time units of measurement (I'm looking at you, imperial and US customary units!!)

[–] observantTrapezium@lemmy.ca 9 points 1 month ago (2 children)

It's a way for the vehicle owner to broadcast to the world that they have a small dick.

[–] observantTrapezium@lemmy.ca 4 points 2 months ago (2 children)
[–] observantTrapezium@lemmy.ca 4 points 3 months ago

Ah, that is the answer! 🙏

Indeed, it was the semi-annual compounding and effective interest rate that threw me off.

 

I don't seem to understand something regarding how interest is paid on a mortgage. Say the loan is for $100,000 at a 5% rate for 10 years, paid monthly.

I would think that on the first month, the interest I have to pay $100,000 × (0.05 ÷ 12) = $416.67. However the mortgage calculator says that the first payment is actually $412.39. While it's not a huge difference, it's a difference nonetheless and I can't really figure out where it comes from.

My intuition is that it's somehow related to the fact that interest is compounded daily, but when I take r = 0.05 ÷ 365 and N = 365 × 10 payments (keeping leap years in mind for later), and calculate the first 30 days, I get $409.70, and the first 31 days give $423.32. I guess that the "actual" number is some kind of weighted average since the calculator doesn't ask at which month your loan starts.

So where is this $412.39 coming from? In reality when paying a mortgage, do you see the interest fluctuating as it decreases, depending on the number of days every month?

 

I recommend watching the whole interview, it's hilarious.

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