I'm expecting to see this in a calculator unboxing video soon.

Display: 1 Functionality: 0 Accuracy: 1 Ergonomics: 1 Cred: 1 Durability: 0 Total score: 100

Some of you guys are missing the part where he says this is how calculators work, which is kinda the whole point of the exercise. That flip turns off / on transistors allowing the electricity to flow to the correct position. Yes, there are much "easier" ways of adding two binary numbers. But this can be generalized by extending it indefinitely.

I was promised a paper calculator, not a paper half-adder.

I've seen binary adders in all shapes and forms, but an interactive paper one is new to me, great work!

this is by far the most complex video i have ever seen on this channel...

THIS IS LIKE AN ASMR

It will save a lot of my time I put in complicated math calculations!

But, how does it compare to the Gaxio? Please put it in a box so that in can be suitably reviewed.

Will the extra videos ever be uploaded?

I'd've loved to hear Matt Parker's snarky remarks on this one.

"Paper Calculator" also known as a "flow chart".

Why tell me about this now? I could have took it into my exam.

i would love to make fun of this, but down deep i know i would need like two weeks to re-create this

faster than java

shoulda used a NAND gate

Still waiting for the extra videos.

For those unaware, he is a comic book artist who earned a degree in math from UC Berkeley. His work is alright for me. Please, give his work a try

"Right now or very soon" I'm still waiting for these mentioned videos two years on

Now take the square root of pi

My parents got me the Meanwhile book when I was younger. Great Job with that, it was really fun to read! My favorite page was that inaccessible one with the main character hanging out with a squid.

I am so excited for the upcoming videos. I've read Meanwhile and it is fantastic and now I get to see Jason Shiga himself talk about it!

Jason Shiga is a gem!

That's a very cool idea and a great way to de-mystify how computers work. It's also made me want to create my own version of this and add control logic to it to choose the operator in order to introduce that concept, too...

Reminds me of when I started learning about Redstone circuits :)

But will it blend?

Will this paper calculator be sold on EBay?

What happened to the rest of the Jason Shiga videos?

it's been 3 months where are the extra videos, we want the extra videos if you don't mind ;)

Oh he has a lovely, gentle voice!

This is so cool. It's nice to be early, but now I have to wait to see the additional videos.

Do the 1 divided by 9 times 9 test

OMG! THIS GUY! I SAW A PAGE OF HIS WEBCOMIC AGES AGO BUT COULDN'T FIND THE WHOLE THING, NOW I FOUND IT, FINALLY, THANK YOU SO MUCH!

Using flaps and tubes like this to do calculations is really cool and I actually managed to build on this idea beyond a half adder. I have a big project in mind that I'm currently designing, and it's going to be an entire computer that you can even program. It sounds like a lot, but I'm actually doing it! :)

I had a smirk on my face until the last comment he made about how calculators work. This was more edutaining than any computer lesson I've had. Have him do more videos please.

THIS IS THE GUY THAT MADE "MEANWHILE..."??????!!!! I read that like 5 years ago in middle school and loved it (and also lost it)!!!! How awesome!!

that pictorial calculator preview at the end - that'd be mighty cool!

HOLY COW! I remember that book! I checked it out from a library a few years ago. I enjoyed it and wanted to check it out again, but I couldn't remember the name. Thanks Numberphile!

Still waiting on those extra videos

There is a big piece of paper a tiny man is flipping back and forth inside my calculator? Damn technology, you crazy.

I purchased Jason Shiga's book "Meanwhile" a few years ago. And now he's on a Numberphile video. Amazing!

When is the continuation of this video that's mentioned in the description going to be posted?

Saw the thumbnail, thought it was Tadashi.

Where are the other supplementary videos added? I can't find them despite being advertised to be up soon.

But can you make it out of Dominoes?

I can't wait for the next videos! Interesting proof of concept

i really want to get numberphile's gmail because i have three theorems and i have no other idea on how to get them out into the mathematical community

Bradey sounds really bored xd

Is it worth buying this over the Casio fx series? I've been looking for a Calculator for university

Hey where're other videos with Jason Shiga? I can't find them.

I remember reading that book shown at the end, it was very interesting!

OMG I'VE ALWAYS LOVED JASON SHIGA AND HIS WORK

Do you have a map of this or something? This is blowing my mind and I wanna know how!

That's just a petty two bit parlor trick!

The most interesting calculator I've ever seen!

There were 2 possible paths to follow at 2:00. Would the result be the same if the other path were chose?

More Jason Shiga please!!

This was really relaxing

This guys voice is so relaxing and calming and nice

Nice tech. I particularly like the e-ink display.

Yep Real soon give or take a year and a half

Oh wow! I emailed Jason just a few days ago to ask if he was making anything new... I had no idea!

i hope to see this guy more

I love Jason's voice!

'Either right now or very soon'... hmm... it's a week later and there do not appear to be any more videos related to this. Two more videos have been posted in that time, but neither on this topic. Did something go amiss?

Still waiting on that follow up video...

I did some back of the envelope rough guess stuff on this: assumption - a full adder requires 40 transistors, and here covers an a4 sheet of paper. 3 examples: a 6502 from the 70s had 3510 transistors, which roughly equates to 88 pages of paper calculator. This would cover an area of 5.45 square meters. That is worryingly possible. I could do that in my living room. a 68000 from the 80s had (surprise!) 68000 transistors. This is now up to 1700 pages of a4, with an area of 105 square meters. A small team and a warehouse would be required for this one, but think about it - a really slow paper Amiga! finally lets see what my own computer would look like (excluding the graphics cards ha ha) - 1,400,000,000 transistors equating to 35 million sheets of a4. The area would be 2170 square Kilometers. That's more than London! Stacked up it would be a pile of paper 3.5 km tall. This is of course, excluding memory etc. and somewhere along the line, as well as making vast assumptions and guesses I'm bound to have made an error or two, but it's interesting to imagine. If anyone finds that I'm out by more than an order of magnitude in anything, feel free to berate my simplistic mathing.

I like this Jason fella. Hopes for a calculator that let's me write out 80085 in future video.

did expect more

This was really cool

WHERE ARE THE MEANWHILE VIDEOS???!!!

It's amazing !

That's amazing actually!

What an awesome calculator!

How creative!

please more of this, logical gates are extremly interesting subject

Yet those extra videos never came... It's really such a shame.

These "very soon" videos, when are we getting to see them ?

from now on i will idealize shiga, the greatest brain of the world!!!!!! you are the man

This is awesome :)

His voice is strangely relaxing. I like it.

That's awesome! :D

Nice job. That is fun, thanks !

Wait this was the guy who made "Meanwhile"!? I'm liking how this is going already

his voice is perfect for an asmr video *shivers*

Can you go bigger? And how big? 8 bit, 16 bit? What's the reasonable limit, and then is there a way to connect those in parallel to go even further? Basically: If you made enough of these could you make a paper computer?

This man is nuts, nuts is what we need sometimes to create fantastic things.

Now make a stone calculator :D

Where can I get one of those?

Still waiting on those follow up videos....:(

this is so interesting!!!

The purpose of this video is to illustrate how circuit boards "think." This isn't actually a "paper calculator." They're not genuinely trying to figure out what 1+1 is. It's to express the idea that when one thing turns on, other things turn off and other things turn on. It's a lofty concept very cleverly dumbed down. Don't miss the forest for the trees.

We all know the extra vids are not gonna get published, so can someone try and replicate it and post a link to a wideshot of it so we can analyze it?

Now put 8 of these in a row and connect the output of one to another

It's so nerdy. I like it :)

I have found what I've always been searching for. :O

How do you make one...?

Should have been a calculator unboxing video

Numberphile thumbs.. always the best

That's really clever.