Category: Thoughts

Understanding Road Grade: The Math Behind the 10% Incline Sign | June 30 2025, 19:48

It turns out that the incline (incline, or grade) – the steepness of a road or slope – has quite an obvious definition, but I never really thought about it. It means the ratio of the projection of a line on the terrain to the vertical plane to the projection of the same line on the horizontal. In other words, the magnitude of the incline equals the tangent of the angle between the rise of the slope and the horizontal (the tangent of the angle of inclination).

Thus, a “steep climb” sign of 10% indicates just about 5.71 degrees of inclination. This is arctan(0.1).

It also turned out that formally among specialists when reading the notation, the “%” sign is pronounced as “hundredths.”

Galactic Etymology: Tracing the Milky Origins in the Night Sky | June 29 2025, 12:57

I am looking at photos and reading material about the Milky Way and noticed that the word galaxy (any) essentially means “milky” from Greek. Κύκλος Γαλαξίας. Essentially, lac from lactose, and gala from galaxy essentially come from the same Proto-Indo-European ģlákts. Unexpected.

The Surprising Origins of Chain Link Fencing | June 26 2025, 10:08

Deception is everywhere. I googled “chain link fence” and it turns out that Karl Rabitz has nothing to do with it, but instead relates to a different one, and the very first of the known documented images of the chain link fence was found in… a mattress patent. More precisely, in the US patent No. 124,286 “Wire Fabrics”, issued on March 5, 1872, to a certain Mr. Peters (J. W. C. Peters).

Discover Your Flight Gate Early with This Simple Plane Finder Hack | June 24 2025, 22:08

I just found a lifehack on how to determine your departure gate when it’s not yet displayed on the board. Go to planefinder net, enter your flight, and it shows the tail number of the airplane for that specific departure. Click on the link with the tail number, and it shows where the plane is arriving from—the gate it arrives at is known much earlier than the gate from where the new flight departs. So head to this gate, as it’s almost certain to appear on the board by the time someone gets around to updating it.

Yes, everything will go awry if they change the plane. But it’s very unlikely that the airplane will change, as any replacement has to be the same model otherwise it causes chaos with the already assigned seating, and airplanes are not changed often (although it has happened to me several times). Nonetheless, there’s nothing to do at the airport, and playing the game of guessing the gate is interesting.

Faustian Dialogues in Modern Project Management | June 20 2025, 15:00

I think project managers can very well speak to developers in the words of Faust.

Well, here we go again, in the old manner

With you – all is uncertainty, all doubts,

In everything you create difficulties,

And for all, you wish for new rewards!

When will you, without any further talk, —

One, two: look, — and everything is ready soon!

(For context – this is Faust’s reaction to the refusal of the seemingly omnipotent Mephistopheles (Devil) to bring Helen of Troy and Paris from the realm of shadows to the stage for the Emperor’s amusement)

director

Don’t forget anything:

What can be done immediately,

Why put it off till tomorrow?

We must instantly grasp

All that is necessary and possible

(…)

“You have poorly executed it,

And left a gap in the corner”

And the designer might reply:

And you do not see, how vile and shameful

This craft?

Am I not an artist?

To the Manager:

“Fire! Help! Hell! We are all going to burn now!”

Cultural Codes: How T-Shirt Messages Connect Us Globally | June 19 2025, 16:13

I’ve long noticed that in the USA, people read the inscriptions on t-shirts and polos. When I lived in Russia, I remember, generally nobody pays attention to them. Or they do, and forget the next second. It’s normal for us to comment if we like something. I wonder what it’s like in Europe.

I have a t-shirt that says “2020 ★☆☆☆☆ Very bad. Would not recommend”. It’s already outdated, but I still regularly get comments on it.

In certain groups here, there’s a whole communication system based on what you wear. It seems among teenagers, it’s especially strict, and standing out isn’t welcomed, which is why many just dress like “carbon copies” — the same colors, the same brands 🙂 Well, obviously, students wear hoodies and t-shirts with their university’s symbols (I can hardly imagine putting my RGRTA on a t-shirt).

Exploring Faust and the Zoologist: The Dual Life of Translator Khodkovsky | June 18 2025, 04:06

I’m listening to the second part of Faust and simultaneously googling translator Holodkovsky. It turns out that translating Faust was something of a hobby for the scholar-zoologist Holodkovsky, spanning 60 years. Holodkovsky has hardly any original writings—only translations, and from the translations, everything else, as they say, is minor details.

That is, Goethe wrote Faust for 60 years, and the entomologist-translator translated it for 40 years and spent another 20 catching bugs, imagine? What a scale of projects.

In fact, apart from being the author of probably the best translation of Faust, Holodkovsky is almost absent in literature. But as a zoologist, he left much more of a mark. True, it’s hard for non-entomologists to read without a smile, but here are his main works: “Male Genitalia of Diptera,” “Atlas of Human Helminths,” “On the Oral Organs of Some Insects Parasitizing Humans,” “Coexistence and Societies of Animals,” and others.