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20th January 2019

Maria

3 clubs, 4 clubs, 70 minutes

Warm up

Fountain, doubles
534534 and back to fountain
3[4,3]2

3c multiplex start (triple, double and single), got it a few times.
441 with the 1 behind my back

Sync fountain, doubles
Double single

1up 2up

passing, 20 minutes

(With T)
5c 1-count
5c practice for 6c passing (juggle, pass, wait, receive, juggle...) was a bit hard for T, only worked sometimes.
Taking over a 3c cascade from each other

passing, 60 minutes

(With S, C and S2)
4p333, tried both directions.
Scrambled V

(With S and S2)
Roundabout
ChopAbout, first time for S2. We got most of her manipulation, but not the transition to me manipulating.

Total practice time: 150 minutes

Location: Södermalmsskolan (Fritidsjonglörerna)

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17th January 2019

Maria

3 clubs, 4 clubs, 60 minutes

534534 and back to fountain didn't work well today, took way too long to get it once from each hand.

Got a pretty good round of 531

passing, 60 minutes

(With T, M and S2)
Weave, T feeding. S was watching and instructing.

(With T, M, S and S2)
Mr inside Mr outside weave. First with S and T next to each other, then with S on the other side of the weave. I am starting to get the turning part now.

W feed with 2 extra clubs (2-count/4-count on doubles) didn't quite work, but we got a few passes in the configuration we started with (M and S2 on the ends)

Total practice time: 120 minutes

Location: Eiraskolan (Fritidsjonglörerna)

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13th January 2019

Maria

3 clubs, 4 clubs, 55 minutes

passing, 105 minutes

(With T and S)
Drunken Sailors
Feed: Why Not feeding 5-count popcorn
Feed: 4.5p 3 4.5p 3 3 feeding 4.5p 3 3 4 4 (11 clubs). Didn't get many passes.
10c feed with walking

(With T)
French 3-count (psh)

(With J)
5c practice for 6c 4-count
4-count

Total practice time: 160 minutes

Location: Södermalmsskolan (Fritidsjonglörerna)

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12th January 2019

Stephen Meschke

yansse, 1 minute

YANSSE - yet another site swap emulator

https://github.com/smeschke/juggling/blob/master/miscellaneous/yansse.py

After the Claude Shannon Juggling Machine, I want to try making a site swap emulator.

Total practice time: 1 minutes

Location: Linux

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Terix

3 clubs, 4 rings, 7 minutes

Total practice time: 7 minutes

Location: Brno dormitary

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11th January 2019

Maria

3 balls, 20 minutes

Got 14 catches of 3b box today.

4 balls, 5 minutes

Total practice time: 25 minutes

Location: Vardagsrummet

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10th January 2019

Maria

3 clubs, 4 clubs, 50 minutes

Warm up

Fountain, doubles
534534 and back to fountain
3[4,3]2

passing, 70 minutes

(With T)
3p[4,3]2 didn't work
3p[4,3]2 vs 3-count did work, though.

(With T and S2)
2-count/4-count feed with walking
pps/3-count feed with walking, only got 1 walk on most attempts, sometimes two.
Bruno's Nightmare
10c feed, we took turns feeding. Got a few passes with S2 feeding, a few more with me feeding, T did early triples with pirouettes when he was feeding (though that only worked sometimes).

Total practice time: 120 minutes

Location: Eiraskolan (Fritidsjonglörerna)

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9th January 2019

Maria

3 balls, 25 minutes

I didn't actually feel like juggling tonight. Not until I picked up the balls, that is. The main reason that I even did that was that I didn't want to break my "not a whole week without juggling since 2015". Well, as soon as I picked up the balls, I enjoyed it. Decided already before I started that I was just gonna do whatever I felt like, no serious practicing for a specific goal or anything like that. Should juggle that way more often.

I got a few catches of 3b box today! I think it might have been 8 catches on the best round. Definitely got 6 a few times (and back to cascade some of those times, too). Haven't done that before. :)

4 balls, 5 minutes

Total practice time: 30 minutes

Location: Vardagsrummet

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Stephen Meschke

vision research, 1 minute

I built a Claude Shannon Juggling Machine. Instead of using physical objects, I built this machine virtually. This is written in Python 3. The UI and some of the functions use the computer vision software library OpenCV. Like Scott said in the original post, the fun of this device is not in building it. The interesting part is tuning the device so that it juggles.

This program is object-oriented. The balls are the objects. Each ball object has two attributes, (1) a tuple to describe the ball's (x,y) coordinates, and (2) a tuple to describe the ball's velocity vector (speed and direction).

Several functions allow the ball to interact with the environment. These functions move the ball, apply gravity, bounce the ball off an object, etc... In the main loop of the program, all of these functions are called on the balls to produce juggling.

The machine is tuned by adjusting the parameters. Parameters are defined before running the program, or changed during runtime using the keyboard. The most important parameters are speed and rotation. Each number of balls requires a specific combination of speed and rotation to juggle. Graph of number of balls and, speed and rotation.


To find these values, I tuned the machine during runtime. It was tedious to tune the machine, and I am searching for a way to mathematically derive the parameters that will produce juggling for n number of balls. Is there a formula that relates the number of balls and the combination of speed and rotation?

Please try this out for yourself:

Link to Code

Link to Video:

Total practice time: 1 minutes

Location: Linux

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5th January 2019

Terix

practising, 1 minute

Juggling for a minute with 3 kiwis... Strange, but juggled :D

Total practice time: 1 minutes

Location: Brno dormitary

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4th January 2019

Terix

practising, 1 minute

Juggling cascade with 3 kiwis, no time

Total practice time: 1 minutes

Location: Brno dormitary

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3rd January 2019

Stephen Meschke

Juggling Simulator, vision research, 1 minute

Machine progress: https://imgur.com/a/2ugHkUZ

Total practice time: 1 minutes

Location: Linux

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Terix

practising, 1 minute

The same situation as yesterday

Total practice time: 1 minutes

Location: Brno dormitary

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