I would also say that this library covers more or less the “lower half” of solo ball juggling in terms of difficulty. With lower ball counts (say ≤ 4), there are a lot of these patterns that have complex arm movements and can be difficult to explain with words, so having such a listing with animations and step-by-step instructions is very valuable. Starting with 4 balls, there’s less and less time for moving your arms around and it is more about the sequence of heights of the throws, which are well described with just their numeric “siteswap” pattern and you can learn them just from knowing the number sequence. The site has only the most basic of those (e.g. 534) and even very common 4-ball (7531, 633) patterns are missing with hardly anything beyond that.
[1]: https://ianconvy.github.io/projects/other/libraryofjuggling/...
Shout out to anyone that remembers the Mushy Pea juggling shop in Manchester many years ago, where I learned all sorts of circus skills.
I also juggle, and the result of the combination is that approximately every single person on Facebook has posted to me the video about solving cubes while juggling them...
Even sided cubes are the hardest because they have issues with "parity" that are only uncovered near the end of the solve and can be quite tedious to fix (at least imho).
Cascade pattern = easy difficulty
Shower pattern = normal difficulty
Box pattern = hard difficulty
Unless you start throwing feathers or balloons, the latter requires you throw higher. That requires you to either spend more time launching them up (bad for the ‘decrease time between catching and throwing’) or use more force (bad for throwing accuracy.
Also, even assuming you juggle 4 balls keeping “time in hand” equal, you have to throw it higher by a factor of (4/3)². That’s almost 2.
And even if you manage to make those throws with the same accuracy in angles, the errors in location by the time you catch the balls scale by the same factor.
The rating is described as a rating "1 - 10"
But every trick is actually graded 2 to 9. ( https://libraryofjuggling.com/TricksByDifficulty.html )
Presumably no-one ever wanted to define a grade 1, just in case an easier one was discovered, and similarly for 10.
When I was learning to juggle, that was the first step - and for someone who's never really tried to juggle, or toss a ball up and down in a very consistent way, it's surprisingly hard. Honestly, probably not a 1 on the scale.
There wasn't much on YouTube at the time but I also think YouTube is a worse resource for pretty much all of these simple tricks. All you need is a slow loop to learn any ball juggling trick.
There was also a similar site that let you input siteswaps.
The noob gains once you get comfortable with 3 balls are addictive, compared to later patterns or tricks that can take hours, days or even weeks to pick up.
https://libraryofjuggling.com/Tricks/3balltricks/Factory.htm...
On the Box page, HalfBox is in a square frame on the top-right. If wikipedia were like this it would be unusable.