171–180 of 230 posts
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If you enjoyed the article, check out others by the same author which are done in a similar way. For example https://ciechanow.ski/color-spaces/ and https://ciechanow.ski/earth-and-sun/
Or have a look at all his interesting articles here: https://ciechanow.ski/archives/
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Thanks for sharing these tips! I didn't realize you were trying out ObservableHQ too.
I love ObservableHQ! I think it's a neat model that fixes a lot of things I didn't like about notebooks. I don't use it much though. It makes the simple things easier but it makes the complex things harder. Examples: 1. I often start making a diagram interactive by adding a slider connected to some state. The slider/state is in one "viewof" cell and the diagram is in another cell. But for more polished work I often w…
I recently walked my girlfriend through your explorable on populating landscapes with Perlin noise btw. It was great.
Making gears was interesting, we had to first turn a rough blank of metal on a lathe to make a steel gear blank (about 12cm in diameter and 2cm thick) then drill out the center and broach a keyway for the axle that would go through the gear. This was all pretty straightforward, but the final piece of work was more difficult, it was cutting the teeth of the gear. The teeth of a properly made gear require complex shapes.
There are, as I recall, two ways to cut the teeth. Hobbing uses a helical cutting head turning on an axis that is roughly perpendicular to the axis of the gear. The cutting head and gear turn at the same time in a synchronized manner and the teeth are eventually cut out by the cutting head. See [1] for a video of a large complex gear being made this way.
The other method, broaching, uses a straight bar of tool steel that has thick straight across cutting teeth. The bar is pushed past the disk shaped gear blank. The cutting bar moves in a straight line parallel to the axis of the gear blank. Repeated passes over the gear blank cuts out the spaces between the gears teeth.
Master machinists taught us how to make these kinds of projects. They would produce a finished gear in about 15 minutes of instruction; then we would have something like two weeks to make the gear. They made everything look easy; it definitely wasn’t easy for me.
[1] https://www.youtube.com/watch?v=0rnTh6c19HM&feature=share
Just learned about starter motors today. I didn't know it has gears too, in particular the planetary gear system, which is not mentioned in this tutorial. (I quickly skimmed through)
[1] https://www.youtube.com/watch?v=VRe_hKxzKUg&t=1094s https://www.howacarworks.com/
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That's also what I was taught as a best practice, but it's not always possible. Well of course it's possible -there are infinitely many sets of coprime numbers! Silly engineers
Good luck for when you need exactly 2:1 ratio, like eg in clocks.
For the author: adding support for touch events, or using normal HTML sliders would be helpful.
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Not to dismiss your work, but do you think the best investment of your time is to write another textbook (assuming this is an undergraduate level book in a relatively well-explored field), or in adding detail/great illustrations/great interactive charts to an existing work? I know (really, like, I know ) how detrimental this would be to anyone's career, and I'm not saying this as a moral condemnation of what you're d…
> Not to dismiss your work [...] assuming this is an undergraduate level book in a relatively well-explored field [...] not saying this as a moral condemnation of what you're doing Why is that your default assumption? Seems very strong when GP gave basically no details.
Because that's probably most textbooks.
Edit: Are people downvoting me because I'm actually wrong about textbooks, or is my answer unsatisfactory somehow?