"A genuine mobile fax machine! No don't start now, it's not plugged in yet."

@LeviJohansen

5 жыл бұрын

should have called it cellular

Only Matt Parker would edit the video so that the viewers would know the trick wasn't edited.

@Notarget1337

5 жыл бұрын

Jitse Kuilman zero fax given.

@BrendanGuildea

4 жыл бұрын

A Parker edit, if you like.

@billyanderson2858

3 жыл бұрын

Pop@@BrendanGuildea My aààaaaàqqqààaàààaaààààæ

Matt Parker almost tricked me into believing that nobody owns fax machines... Then in 2019 I moved to Germany and oh boy, what a surprise.

@tomorrow6

Жыл бұрын

Oh yes and mechanics and other shops were still using them to send and receive info into 2022

@JohnVanderbeck

7 ай бұрын

Even in the US many companies have/use them. Faxing a hotel at Disney is still the best way to get a room request :D

"Download a fax app" is definitely not a phrase I ever anticipated hearing

Is that a machine capable of both phoning and faxing? Please, please tell me you called it the faxophone

@NoNameAtAll2

6 жыл бұрын

phone fex

@JasperJanssen

5 жыл бұрын

Also known as “most fax machines”.

@laurawagoner9136

5 жыл бұрын

Jasper Janssen or a cell phones?! still funny tho .. reminds me of homer and his pronunciation of saxophone

@Fexghadi

5 жыл бұрын

@@NoNameAtAll2 Huh?

@muhilan8540

4 жыл бұрын

@@JasperJanssen it's called telefax

One of the first things I did after adding a Hayes 300 baud modem to my Apple ][+ back in 1981 (after dialing in to some local BBSs) was to compute fax images, and use the fax as a printer that would be much quieter than my noisy dot-matrix printer. But the lack of memory to hold an entire page at 200x100 DPI (approximately "Standard" fax resolution, ~200 kB/page) meant I couldn't simply plot lines and draw characters into a large bitmap. I had to get a bit more clever. My first thought was to have a representation of the plot and/or text I could then rasterize to a file on a floppy disk, but this rapidly became way too complex to implement quickly. I then noticed that the vast majority of fax dots were left white (not printed). When meant that an RLE (Run-Length Encoding) would be extremely effective. In RLE, you have a dot value followed by how many times it is used sequentially. I wrote a program (initially in UCSD Pascal) that would plot dots within a binary RLE representation of a fax page. Let's say an empty fax page is represented by "0[200,000]", which is simply 200,000 white (unset) dots. Now, let's say I want to plot a horizontal line that's 2 dots thick across the middle of the page. The resulting RLE expression would be: "0[99,300],1[400],0[99,300]". Even as text (binary is far more compact), that's a small representation of an entire fax page! The other advantage of RLE is it is ridiculously fast and easy to decode on the fly, far faster than reading uncompressed raw data from floppy, and fast enough to keep up with the fax mode of the modem. I added functions for drawing simple fonts, lines and conic sections (using Bresenham's algorithms) and went for it. Creating the representation was easy, but I had lots of trouble sending it as a fax. Documentation back then was fairly sparse, and I had to reverse-engineer the details of the Hayes fax commands. I soon learned that UCSD Pascal was poorly suited to real-time programming, and rewrote the fax send program in 6502 assembler. When I did this, I also wrote a program that would take my RLE fax files and send them to my dot-matrix printer (which was much cheaper to test with since fax thermal paper was expensive at the time). Of course, I soon learned I wasn't the first to attempt this, nor was I the best. By the time I finished my code, even Hayes had released a program and library that covered 80% of what I had done. All I did was port my code to draw conic sections and arcs. Later I added various spline functions. Then flood-fill of closed objects. Then I added dithering for filled areas. Then I switched to an MS-DOS PC and never touched the code again.

@CraftQueenJr

5 жыл бұрын

BobC this just sounds amazing.

@richardpike8748

4 жыл бұрын

Congratulations in the most nerdy way possible! This is something I would do if I had the time and the resources lol

@skyjoe55

4 жыл бұрын

I have never been so interested in something from 2 years ago that i dont understand

@theemeralddragonyt9315

3 жыл бұрын

Is there any way you can explain this a bit more simply

@mow184

3 жыл бұрын

The most amazing thing about this story, aside of the fact that you did all this, is that you remember doing all this. I don’t remember what I ate for lunch.

I have never laughed harder at a live performance regarding the life, death, and revival of the fax machine

@41-Haiku

6 жыл бұрын

I was amused, but didn't laugh at all. So... same!

@MrHack4never

6 жыл бұрын

It's just like vinyl records!

@rishabhdhiman9422

6 жыл бұрын

That seems to be quite a niche performance.

If I pay enough, can you fax me the VHS?

@HelPfeffer

2 жыл бұрын

XD

Post-fax world!! And alternative fax!!! Matt Parker, you are a genius. :)

@steffensauer2894

6 жыл бұрын

John Chessant could you explain that one to me?

@johnchessant3012

6 жыл бұрын

Matt was making a political joke. In the US election last year, Trump (who famously said "You're fired!" a lot on his TV show) made so many false statements during the campaign that some people said that Americans are living in a "post-facts world". Then, earlier this year, Trump's adviser Kellyanne Conway said the phrase "alternative facts" on live TV during an interview (prompting the response "alternative facts are not facts; they're falsehoods"). Matt was riffing on how similar "fax" and "facts" sound.

9:23 you can't fool me, that VHS still has it's tab on. Aren't you worried about someone taping over it with some under par maths comedy show?

@nicolacornolti7796

4 жыл бұрын

It's just a mock-up, not a real picture

Only two things are certain in life - death and faxes

The NHS is believed to be the biggest purchaser of fax machines in the world - I don't know how true this is because I can't bothered to fact check it. But what is true is that the NHS runs on fax machines, especially when it comes to communication between GPs and other parts of the NHS. I'm not terribly upset by this because it has a fair few advantages. 1) Because not many people have faxes it's really difficult to send confidential information to a random person by dialling the wrong number. 2) Actual signatures are transmitted, so if I want a GP to prescribe something for my patient, the fax, that I can put in the patient's notes means that it is a legal prescription. 3) You can't CC everyone in the NHS and bring the whole thing to a halt. 4) You get a nice receipt which means you are certain that your message has be received (whether it gets acted on is another thing...) So for something from the 1800's it's not a bad bit of kit. And a lot easier to use than the official NHS email system where it's all web-based.

@dom1310df

6 жыл бұрын

Brian Kellett +1 for point number 3

@dolliemoggie

5 жыл бұрын

A fax still cannot be accepted as a legal prescription, as it lacks the signature of the prescriber in indelible ink, especially for controlled drugs, but most pharmacies can dispense your medicine against a fax, usually on bank holidays when it's a genuine case of emergency.

@tangerinetech5300

5 жыл бұрын

If only I knew what business field you were talking about

@lpalmer90

5 жыл бұрын

@@tangerinetech5300 British healthcare system

@jamiewilding6979

5 жыл бұрын

I work in US at hospital. We send medical records by fax because of security. I use a fax machine 20-30 times a day.

Parker fax machine

@Ben-nk3cx

6 жыл бұрын

Arth Banka stored in a Parker box

@ag8454

6 жыл бұрын

Ben Garcia The three-dimensional analog to the Parker Square, i.e. the Parker Cube

@tiberiu_nicolae

6 жыл бұрын

The Parker square worked too, even though it wasn't "perfect"

@TrumpCardMAGA

6 жыл бұрын

I couldn't let the likes sit at 299

@murk1e

6 жыл бұрын

Which makes no sense, as it worked fine

I love every second. It's easy to understand, well thought-out, and looks amazing. It's clearly one of the best Venn diagrams ever made. Oh, and the show was ok too.

hah, I rewound and watched it again to find where the ties went on just before the pause bit appeared.

@andrewseburn

6 жыл бұрын

Me too

@trigonzobob

6 жыл бұрын

Rewound - ha ha - did you watch on VHS? :)

@ZXGuesser

6 жыл бұрын

Yes, I have all KZread videos dubbed onto tape by my butler so that I can watch them on my CRT television. Doesn't everyone do that?

@KuraIthys

6 жыл бұрын

ZXGuesser That sounds like a lot of work. I have s-video out on my computer. Works just fine. ;p

I wish fax machines were as dead as he seems to think. I had to stay late at work last week because someone faxed us a 150 page document that took 90 min to print full of extremely confidential client information that I couldn't just leave on the machine for some random janitor to see. Except that the fax didn't completely go through. So they tried again. And again three more times the next morning. That was a fun day.

You're one of my favorite comedians Matt, I'm downloading now! Can't wait to watch in full!

I wonder how many times per day he gets a fax of a Parker Square?😄

Hi Matt! I have just come from your wonderful presentation at the Open in Norwich, where I secured your autograph. Everyone absolutely loved it- it was the best presentation so far in the event's history. Thanks again, JP.

I was impressed by the double tie and I re-winded the first time I saw it come out. Very well played.

I was in the audience for this, I tried sending a fax to it but it ran out of paper

@acerockman3520

6 жыл бұрын

danfrommn I don't know, it was filmed months ago

I live in Canada and work in a Hospital where faxes are still used. It's still the best way to get a patient's chart summary from an other hospital.

Michael J. Fax

There's a surprising number of weird things that use faxes (at least in the U.S.), especially if you need to send someone a signed document. As a result, a scanner hooked up to an internet fax server is one of the more popular services offered by the public library where I work.

Awesome! I didn't know these were available! Can't wait to see you on your inevitable world tour :)

2020 05 03 - No way - as of today this number is still valid... Added to my contacts so that I can "drunk fax" Matt Parker all the way from South Africa!

There was, in the 80s, a product called "The Complete Communicator" which allowed a DOS computer to recieve a voice message and call you with the "Voice Mail" for 999 Voice Mail boxes. It could also send fax as a selection from a menu or receive a fax with a voice comment. You could even send a file, any kind, to another computer using "The Complete Computer" as a fax. This would be useful today as, if intercepted, the file is seen only as a black page. If this wasn't enough, you could pipe a call to another program, BBS Host, for the duration of the call; something I used. Then came Windows.

Wow! Doing it in VHS and selling for £3.14. Love it!!!

I can't believe they predicted the rise of Alternative Fax!

The only thing holding me back from going and getting some kind of program to send faxes to that machine is that this video was posted five years ago and I'm not sure if Matt is still paying for cell service for his mobile fax. Sending a fax that can't be received would just be pointless, right?

Parker stand up

@ashtonhoward5582

5 жыл бұрын

Parker, lay down.

Can we get a laserdisc version?

Haha! I was just checking if I missed you put the ties on and I thought to myself "must be a camera cut" or "that's why it cuts away"! Cheers for the explanation!

Man, a bttf AND a Jurassic Park reference. This man is living the peak of cinema.

Banks, realtors, and government offices still use fax machines a lot in the US.

I wonder how many parker squares he has received over the fax.

The fact that you have it on VHS is amazing

Bought a copy, downloading now.

@Birbone21

6 жыл бұрын

Right after purchase i was brought to the page with download links. And then i also received 2 email messages, one with billing info and one with download links.

@Birbone21

6 жыл бұрын

The email with download links came in about 10 minutes after email with order confirmation.

Yes finally available to my country! The previous Amazon versions weren't available - soooo psyched! :)

Just bought the dvd super excited to get this in the mail.

Very entertaining... love all the fax and figures

Regarding the mobile fax machine, we were using the Lightweight Digital Facsimile model # AN/UXC-7 mounted in vehicles during Desert Storm 32+ years ago.

Brave to put this online! *sends Matt a fax*

That fax machine better still be in operation.

Fax machines are still used in the US, mostly for secure document transfer. The biggest users are the medical establishment and utilities like gas, water and electric. While they do transfer internal documents by intranet, and communicate with customers by email, many still require that signed forms be sent by fax instead of a PDF over email.

That double tie add on you did was smooth

Full of interesting Fax!

Aha the Jurassic quote "didn't stop to think if i should"

Man, you're a inspiration. I study Applyed Mathmatics in FGV, Rio de Janeiro, and here he have this talent show, the Fibonight (I know, the name is great). I thought "I can make people laugh like Matt Parker" And I told a lot of jokes there, in froint of my professors. The reactions was variable, but my professors liked, and some other students too! I told one or two jokes of yours in Portuguese, but most of all was selfmade.

A post facts world. Alternative facts. Yep, VERY prescient.

In US buy and use fax machines all the time as part of all-in-one printers (print, copy, scan, fax). Still use fax to place orders with broker - sign the form and fax it over. Fax lives! : )

Matt, When ever I see your stuff I think of a train from London to Paris.... EuroStar... (Your a star)!!!

In case the fax machine is still active someone will probably go overboard and start mailing you daily parker squares or something. (maybe me)

That's not very mobile. What you need to do is build it into a back pack and call it the FaxPax.

@Maxawa0851

5 жыл бұрын

He meant mobile as in like a phone call

Mobile Phones had fax capability before apps, that is you could connect a mobile to a fax machine. The service option codes are 0x5 for a Group 3 Facsimile at 9.6kbps and 0xd for a Group 3 Facsimile at 14.4kbps. You would get a separate directory number for your mobile fax and then when it was called you were paged and served with that service option code. This was important because the voice coders used would filter out some of the frequencies needed and therefore needed to know it was a fax.

This is why I subscribed you years ago

9:33 hope you remove the square bit at the front so you can't accidentally record over it. The front looks really clean and simple, Did you edit any of it in afterefax?

In 1966 fax technology used revolving drums that had to sync up on both ends. The sending unit would scan slowly across as the drum revolved under the scan head and the receiving unit would typically use a thermal paper to print on the drum. And, you could sit there and watch the spinning image appear (left to right if I recall correctly) as the bottom of the paper went flap, flap, flap...

receipt paper on an accessory for an iphone with a fax app, and you've truly made a portable fax machine.

than you for your work, best wishes

at 1:34 my brain exploded from too much meta

Exchange rates may vary but mathematical constants won't 😂😂

I loved the special double tie E-fax

Ah Matt Parker in all his StandupMathy goodness, only here on Numberphile would you find su- _nevermind_

Added to my Watch Later list, so I can drunkenly fax Matt various images of wildlife and exotic desserts later this week. I'll keep you dudes posted.

Alternative facts is still hilarious in 2021!

Is it plugged in now?

@sirjmo

6 жыл бұрын

I hope so.

@mr.e3987

6 жыл бұрын

Whats the app called aha

I see the A-fax and B-fax, but sadly Ceefax is no longer with us

@ZXGuesser

6 жыл бұрын

You could skip a few letters and read Teefax instead facebook.com/teefaxText

@MrJzM

6 жыл бұрын

Show me the carfax

@PhilBagels

6 жыл бұрын

How about Sandy Koufax?

@Kwizii

6 жыл бұрын

Try Equifax

I work for the NHS in a GP surgery and fax use is integral to everything we do. I don't know what we would do without it haha!

Ow, that VHS release 'joke' just made me choke on my tea!

Zero Fax Given.

"Prime Faxtors" he did not just do that

In 24/7 industries that can't switch off without catastrophe, there are lots of instances of outdated technology being used; I work in energy, we send and receive a whole lot of faxes. Someone recently joined the company I work for who was previously in shipping, where they also faxed a lot.

I actually have a question about your multiformat release... it could turn out to be extremely useful to me! Would the video content on the VHS be as identical as mastering makes possible to the other formats? I have been wanting to experiment with cleaning up VHS footage to remove artifacts introduced by the format which requires knowing the "true value" of the pixels. My intention has been to use synthetic video signals generated programmatically (and I would still do that) so that comparison with the output to determine success rate could be done, along with the Creative Commons 'Big Buck Bunny' video and anything else I could find... but I'd not yet figured out what to do about recorded videos just like yours. If there aren't a great deal of format-specific differences, that VHS could be pretty handy to me!

I just love the self-fullfilling-prophecy-joke of that the 2 tide trend x'D

It was very common in Spain for some companies to ask you to send a fax to i.e. end a phone line contract, assurance etc Seems that It's mostly dead by now but I won't be surprised to know that public administration and some companies use It to send invoices, POD's and things like that.

Wow. Drunk faxing sounds like something I would do. Is your fax (omg there is a fax emoji 📠) still live? Or... Working... Or whatever the appropriate term for a fax that can receive faxes is?

@dom1310df

6 жыл бұрын

Lisa Lund Listening? No, that sounds creepy

@MephLeo

6 жыл бұрын

There's only one way to find it out... you know what it is...

@ErikOosterwal

6 жыл бұрын

Leopoldo Aranha - I know what that one way is! You make a spreadsheet.

I can confirm the tie thing, I was there :-) (#humbleBrag)

I don't know about fax machines, but just a few days ago, I found that my cell phone could connect wirelessly to an unsecured printer in a random office in an office building. That could be what was actually depicted in BttF2, and we wouldn't have known the difference at the time.

I use fax machines quite a bit. Probably enough to have one in my home. What I don't have is a phone line.

There are surprising amount of places that still use Fax Machines XD

Hospitals in the UK still use fax machines. 2021!!!

Quick! Someone fax him a picture of Rick Astley!

"I spent so much time thinking about whenever I COULD that I forgot to think about whenever I SHOULD" xD That line alone is already worth more likes than YT allows (hint: more than 1)

I rewound to see you put the ties on and I saw it then you came in to tell us about it and I was sitting there like "I already know".

Did I hear Tau YES PLEASE!

I had no idea any of these were available online, I was always rather sad that these were only in the UK and I'd likely never see one. Now I have this one and Full Frontal.

every office I know still has a fax machine...

Actually fax machines are still in regular use in specialized industries. Great for sending medical records around (in veterinary medicine many practices use paper records rather than electronic). Sending them via fax means no one has to scan, email, receive, print, mark as received, etc. just fax and it’s there.

We live in a post fax world? Let me introduce you to Japan...

7:54 could you call it the "faxual revolution?"

it's not my favourite math constant, it's my favourite math constant divided by 2

for the first few minutes i kept on thinking: what parker resolution, this isnt 1080p.

When I first started working as a graduate engineer (mid nineties) my boss had a mobile that could send and receive faxes. It was one of the first digital mobiles (at the change over from analogue). And it pre-dated emails. Which made it all redundant about a year later anyway... Also, it never worked properly...

I would *_love_* to see a video comprised of nothing but user submitted faxes flipping by... This bit reminded me of my first tech support job when I was in high school (early 90s), private corporate support. Big boss calls and asks *"How do I send a fax over the Internet?!?"* I asked if he meant an email *"What's email?!?"* he replies, and thus began a long afternoon. He'd been trying to send a fax from a spreadsheet he'd printed while he was dialed up to his ISP...

Surely Fax to the Future would be a better title?

Matt, I knew that you wouldn't edit a video of a live show for the tie joke, and I already knew how you did it. I am not really sure how needed the disclaimer there was.

The pause with VHS effect occured right at the point I switched from 360 to 1080p... My brain was broken for a second.

the Nokia 9210 Comunnicator have a build in FAX and you can send and received fax on it... that is a true mobile fax :D

VHS!? I'm in!