This is nothing but blogspam of the embedded Tom Scott video: https://www.youtube.com/watch?v=d99_h30swtM. This article adds nothing that is not already included in the video itself.
spam is advertising; blogspam is a blog that appears to be about something, but it's not really (and as a result, it's very thin, regurgitated, etc), it's an attempt to lure you into a relationship with a predator
this particular article is not a good replacement for the video, it adds nothing, it subtracts some things... but the video also doesn't say all you want to hear either. The article could have used a small animated gif like one might see in a wikipedia article. It would be very nice to see what simple patterns when overlaid would give you >> and << from different angles.
Not everyone can watch youtube videos, it could be blocked in your country or they could be blind for example, and I'm sure there's more reasons. Some people also just prefer to read instead.
I threw this in some AI to have it summarized. I’m not sure what this has to do with watch watching videos on YouTube. Care to explain your key point, rather than hoping people can glean it from a 30 page metaphor?
someone that's a quarter-of-the-way proficient at speed reading can read a short article like this in seconds -- without the time investment or the need to buffer video data to read the transcript.
every media has a place, generally speaking the trivia and background included in a YT video is interesting -- but in the end it's Jeopardy answers and brain-candy for me 90% of the time.
[1] In the web (desktop) version of youtube, if you expand the description, there is a "show transcript" button near the bottom. Not sure about mobile or other versions.
You could say something similar about most books. But padding isn’t totally pointless; longer videos are probably more memorable in the long term, and so are longer books that repeat themselves ad nauseam.
The older way of doing this is simply to have several pillars in line, each one a bit higher up than the previous one as you move away from the shore. I think they're usually painted white with a red band or something.
From a ship, if you see the pillars in a straight line ahead of you, you're in the channel; if the rear pillar is to the left of the front one from your viewpoint you're too far left.
The vertical version of this is the visual approach indicator for aircraft: red and white pairs of lights with flaps at different angles so that if you're too high, you see all white, and if you're too low all red. On the exact glide path you see both red and white.
This is the method I've always seen here in the US, where we call them range lights [0]. There are lights for night alignment and striped boards for daytime. Many years ago I used to maintain these systems in the Caribbean and the Long Island Sound with the US Coast Guard.
Related, “An Evaluation of the Inogon Leading Mark”[1]:
> Responses from the field evaluation were generally negative, mostly because the device was perceived to have too short a detection range for the Constable Hook Channel. It is recommended that the device be considered as a candidate range light for very short range applications.
Moire effect is the result of 2 (or more I guess) similar regular, repeating patterns laid over each other but with a small delta.
Over a small section of the pattern, the patterns will mostly line up. But over a larger sections, you’ll see that some parts will over lap.
An example of this is would be to get 2 meshes. And place one mesh slightly behind the other.
You can hear the result too. A common way to tune a guitar relative to itself is to play one string open, and then play the same note on a different string. You’ll hear this beat that is not the note because the frequencies are close but not quite.
I saw a good talk a couple decades ago where the speaker clued us into how with moire interference patterns, translation of one pattern turns into translational motion of the interference pattern that is 90 degrees offset (e.g., move one grating to the left/right, and the result moves up & down), and a rotation of one grating against another becomes scaling of the resulting pattern. He had lots of neat examples of animation, hidden designs, magnification, moving text, morphing images, etc. I couldn’t find a link immediately, but he was working on a textbook explaining the theory of generalize Moiré patterns. With just a little searching, I do see lots of that kind of stuff describing mathematical and perceptual properties and various uses of Moiré effects.
There is an concept in this video that perfectly encapsulates why taxonomists (in this case those who describe Earth's biodiversity) are so critical, and why their work has the impact it does. The exercise is left to the reader...
