A good trick to practice 4 is to throw 4 throws in the middle of 3. So you juggle 3 balls then throw one to the same hand (the 4 throws) while holding a ball in the other for a beat (the 2 throws). You can put the 42 throws anywhere in the 3 pattern and if you do it as quickly as possible you get 423 which is an interesting pattern. 441 is good too - harder but helps with that sync problem.

The big step comes at 5. It took me nearly a year to master 5 balls with consistent practice. I eventually got reasonably good at 6 balls (juggled in sync, crossing over) but that's where I plateaued as far as numbers go.

There are lots of other things than numbers though. Non jugglers will have no idea how many balls you are juggling so you can impress with 3 balls. My favourite party trick was blindfold juggling. I used to be able to juggle 3 balls for about a minute like that.

You stand slightly behind your pupil and get them to put their left hand behind their back and you put your left hand about where theirs should be. You give them one ball in their right hand and then you start the pattern with two balls.

Most people are amazed to find themselves juggling at this point. Yes, you are correcting their mistakes but it gives a real feeling of juggling for them. Most people manage 10 catches quite easily at this point.

Once they have the hang of that swap sides. This one is harder, don't do it too long before setting them off on 3 and they can practice themselves from here on.

I have taught 100s of people to juggle like that :-)

https://youtube.com/playlist?list=PLGV8mtb7t-4PuziHauottOfqp...

Great teaching style and a fantastic juggler

Comments URL: https://news.ycombinator.com/item?id=47688805

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I've mended a lot of porcelain and earthenware but I use the modern art of epoxy resin. The tricky bit is letting it set just enough so you can cut the excess off cleanly without smearing but not too much so you can't cut it all the while keeping it under enough tension.

I like the string tensioning in the video - think I'll try that on my next mend. I normally use a set of small clamps but it is difficult to get them very tight.

One bit or one trit? I am confused!

That is definitely wrong! No way the source material has more electrons. The only way it could do that is by being charged.

Richard Feynman, The Feynman Lectures: "If you were standing at arm's length from someone and each of you had one percent more electrons than protons, the repelling force would be incredible. How great? Enough to lift the Empire State Building? No! To lift Mount Everest? No! The repulsion would be enough to lift a "weight" equal to that of the entire earth!"

From: https://tycho.parkland.edu/cc/parkland/phy142/summer/lecture...

That is like making a lisp without macros - it takes away a lot of the fun.

I suspect the reason is because it compiles the code in one step whereas immediate words need to run at compile time.

In fact I've enjoyed all of qntm's books.

We also use base32768 encoding in rclone which qntm invented

https://github.com/qntm/base32768

We use this to store encrypted file names and using base32768 on providers which limit file name length based on utf-16 characters (like OneDrive) makes it so we can store much longer file names.

Not sure which camp I'm in, but I enjoyed the imagery.

Worth a read if you like electronics and computers and written in an engaging style.

https://en.wikipedia.org/wiki/IWoz

There is a better series for arctan than the Taylor series which converges for all x. You can see it here in the accelerated series section

https://en.wikipedia.org/wiki/Arctangent_series

I wrote about it in my calculating pi blog some time ago

https://www.craig-wood.com/nick/articles/pi-machin/

It also takes fewer operations which is nice.

I thought it was invented by Euler but the Wikipedia article says Newton invented it and Euler popularized it.