About my projects

In this section I publish reports of my hobby projects. These are mostly programming-related, but I occasionally try to do something ex silico as well. I like to write programs that model and simulate physical phenomena or serve as solvers for various puzzles and problems. I do not want to use pre-existing tools too much, instead I prefer writing my own tools and learn more from the mistakes that I make. As do my interests, also my project topics cover a broad range of scientific disciplines. I wish to demonstrate that I am capable of learning various new subjects independently and down to detail, and better yet, that I am adept at applying such knowledge to practice.


Juggling (1.1.2017)

I think I took up juggling in early November 2015. My brother showed me that he can juggle, and I thought that could be fun and I should learn it as well. I've been juggling ever since, first with tennis balls and later with clubs also. I've noticed that juggling is nice light exercise—with five balls or four clubs actually surprisingly intense. Now that I've been juggling for little over a year, I wanted to demonstrate the progress I've made.

In this "short" report, you'll find dozens of video clips of me demonstrating different juggling patterns. I'll first present normal ball patterns, then some ball patterns with claw catches and finally patterns with clubs. The claw catches make everything much more difficult, whereas the basic club patterns aren't too bad. I've tried to group similar patterns together and the number of "props" grows towards the end. The clips look like having been filmed with a potato because I tried to leave some storage space remaining on my web hotel. Furthermore, the clips are for the most part relatively short (~10 s) for the very same reason and, of course, because I can't yet keep up many of the patterns for extended periods of time.


Video 1. Three ball cascade – the basic juggling pattern.

Video 2. Three ball reverse cascade – the direction is reversed.

Video 3. Three ball half-shower – an asymmetric pattern where one hand throws the balls under and the other over.

Video 4. Different two-in-one patterns – juggling two balls with one hand. I switch between the hands, reverse the direction and do columns (the balls go up and down side by side).

Video 5. Three ball reel-in – the balls circle over towards me. I don't know the "real" name for this pattern.

Video 6. Mills mess – feels a lot like doing a half-shower except for the crossings of arms and constant reversals of direction. I learned this pattern a couple of months ago. It was surprisingly easy to learn once I figured out what each hand is supposed to do.

Video 7. Three ball shower – the balls circle parallel to me. My under"throws" need practice—my left hand practically places the ball into the right one, whereas my right hand just picks up the ball from the left one!

Video 8. Three-in-a-row cascade – similar to three ball cascade, but one hand fires three balls in a row and the other begins its burst straight after. I don't know the "real" name for this pattern. This pattern seems a pretty difficult one—for me at least.

Video 9. Three-in-a-row cascade reversed – the direction is reversed. Very difficult for me.

Video 10. Three ball columns – the balls go up and down side by side, and one hand has to take care of two balls.

Video 11. Three ball columns with an overthrow – two balls go up and down synchronously while the third is thrown over back and forth.

Video 12. Infinity – the third ball follows the cascade pattern.

Video 13. Reverse infinity – the third ball follows the reverse cascade pattern.

Video 14. Three ball asynchronous columns – no two balls are thrown or catched at the same time.

Video 15. Four ball fountain – both hands do two in one asynchronously. A surprisingly easy pattern.

Video 16. Four ball reverse fountain – the direction is reversed. Significantly more difficult for me.

Video 17. Four ball unidirectional fountain – one hand reverses the direction.

Video 18. Four ball synchronous fountain – both hands work synchronously.

Video 19. Four ball synchronous reverse fountain – the direction is reversed. Surprisingly difficult for me.

Video 20. Four ball columns – similar to three ball columns, but just with four balls.

Video 21. Four ball asynchronous columns – no two balls are thrown or catched at the same time.

Video 22. Five ball cascade – similar to three ball cascade, but just with five balls and much more difficulty. I still need a lot of practice.

Claw catches

Video 23. Three ball cascade.

Video 24. Three ball reverse cascade.

Video 25. Three ball half-shower.

Video 26. Mills mess.

Video 27. Four ball fountain.


Video 28. Three club cascade. Pretty easy having learned the ball cascade first.

Video 29. Three club reverse cascade.

Video 30. Three club half-shower.

Video 31. Mills mess.

Video 32. Three club cascade with two revolutions – at each throw, the club rotates two full revolutions. It took quite a lot of practice to be able to pull these off fairly consistently.

Video 33. Three club reverse cascade with two revolutions. Even more difficult.

Video 34. Three club half-shower with two revolutions.

Video 35. Mills mess with two revolutions (crossed arm only) – on each throw by the crossed arm, the club does two revolutions. This was very difficult to stretch beyond ten seconds.

Video 36. Different two-in-one patterns. I use my weaker arm and reverse the direction, do columns and some double revolutions.

Video 37. Three club cascade with some triple revolutions – the yellow club does three revolutions on each throw. The catches often unsuccessful result in a lot of cracked nails.

Video 38. Four club fountain. Easier than I expected.

Video 39. Four club reverse fountain. Much more difficult.

Video 40. Four club asynchronous columns. Easier than four club reverse fountain.


I'm really happy with my progress. On the other hand, it's possible that I've put hundreds of hours into this already, so I'm bound to get some results. In the future, I'll continue to practice the five ball cascade that I'm starting to manage little by little. I'll also put effort into learning the three in one—circling three balls with one hand—which has proven a surprisingly difficult pattern for me. With the clubs I'm in no hurry to move on to five club patterns; instead, I'll first focus on getting the double and triple revolutions right.


Juggling (1.1.2017)

Vocabulary (7.12.2016)

High-performance phase field crystal (6.8.2016)

Phase field crystal (17.9.2015)

Image stacking (23.7.2015)

Wind tunnel (13.12.2014)

Nebulae (8.11.2014)

Optical lithography (22.7.2014)

Evolution (22.5.2014)

Covalent molecules (23.11.2013)

Sudoku (18.7.2013)

Hama beads (4.6.2013)