The Electric Slide Rule - Numberphile
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- เผยแพร่เมื่อ 19 ต.ค. 2024
- Cliff Stoll shows off an electric-powered slide rule.
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"Look at that. 2 x 2.5 is... ALMOST EXACTLY 5!"
I love this guy. He has a level of enthusiasm that the others don't quite match.
*almost exactly 5, not 5!
@@SoffiCitrus Aw man you beat me to it. I was gonna go like "2*2.5 is not equal to 120 what do you mean?"
Math meets reality. Every Scientist and Engineer should use a slide rule for a day once a year.
the slide rule day
I could agree to the 100%
Give this man a kids show! He could be the Bill Nye of math!
then kids would think math makes you love klein bottles
But it does!
Except this guy is actually a mathematician...
Actually, he's an astrophysicist.
Electric Sliderule also one of the world's first cybercrime investigators.
Seeing this guy being so enthusiastic with math always makes my day a bit better.^^
I think he gets more excited about the electrickery :D
if you love Cliff Stoll, you should look up ""The KGB, the Computer, and Me" its a NOVA story about him catching a KGB hacker trying to steal military information by setting up a honeypot for him. Cliff Stoll is very enigmatic when you research him, and theres a reason he is so beloved by numberphiles and the USA around. He is a patriot. but above all, just a scientist trying to make the world better. The real superheroes don't wear capes. Except for that one time where Cliff wore a cape and ran around the hallways, thats just.... Cliff for ya.
Or even better, read "The Cuckoo's Egg"...which is the book that the show is based on.
But don't read "Silicon Snake Oil." He takes a very mean spirited anti-technology slant in that one.
I love Klein bottle guy!
I dunno, it just seems pretty impossible to get inside his head… … … pun intended ;)
I think you mean the pizza guy
me too!
We really mean the Cuckoo's Egg guy, the Urmel catcher, the guy that caught the German hackers stealing data from Berkeley and selling it to the KGB in the eighties.
Search for "The KGB, the Computer, and Me" on TH-cam if you don't know what this is about.
+
My friend and I had the opportunity to hang out with Cliff about a week after this video was filmed and he is one of the most incredible people I have ever met in my life and he is just like he is in these numberphile videos. He was telling us about how he wasn't sure what to show Brady when he came and when he showed him his slide rulers Brady was so excited and was just playing around with them! And the slide rulers, Phoebe the robot, and all of his Klein bottles are so cool to see and play with in real life. So, thank you Cliff and Brady!!
his enthusiasm is not limited to klein bottle!!
+Phi6er I believe that just made my day 😁
Implying his enthusiasm is limited in any way, shape or form is pure blasphemy
His enthusiasm is unexpendable, watch his TEDtalk and you'll see, this guy has done some amazing things haha
pizza was an awsome ep
His enthusiasm is limitless. His enthusiasm is infectious. His enthusiasm is like social-probiotics. His enthusiasm is a disease that needs to spread. I don't think even he has the slightest idea of just how powerful his demeanor is on the world around him.
Being like Cliff Stoll when I'm old is my #1 life goal
I knew it'll be something he'd make
He only builds high quality electric slide rules
Damn it, I can't get away from you.
This is the kind of teaching I like. Presents a concept and then uses easy to understand examples with physical proof instead of just saying "just know its true."
So multiplication of number can be shown as the the addition of their log10 components.
10 X 100 = 1000
log10(10) + log10(100) = log10(1000)
1 + 2 = 3
3 = 3
10^(3) = 10 x 10 x 10 = 1000
so 10 x 100 does in fact equal 1000. It's so easy to prove it's amazing none of the mathematics courses I took ever mentioned this.
I love this man with every fiber of my body. I first heard about him in the mid 90s when he would do pieces for thesite on early MSNBC. He'd talk about where the Internet is going. My NSA dad told me that he was huge in the history of Cyber-security, and from there, I read his book, The Cuckoo's Egg. From that book, Cliff got me to choose my major; he pointed the way to my career. If it was not for this man, my lifetime earnings at this point would be reduced by nearly a half-million dollars today. And yet it is so much more than that. He taught me to care about more than things like technology and money. He taught me the importance of caring about people in a bitter pubescent time that I wanted to reject that concept. He showed me you can be a nerd, and still passionately care about your fellow man. I have very few heroes in this world. I am extremely choosy about them, and I don't even particularly recommend them in the first place. Heroes will let you down if you invest too much in them. Cliff is still my hero. Cliff Stoll is a national treasure.
Is it legal to have that much fun with maths?
Yes. Not in the time they believed in witches, though.
Yes!
Yes, with the proper license.
He will _make_ it legal.
??
5:14 I love how he asks why bother owning a calculator, but never wonders why own an electric slide rule
I love my slide rules (yes, multiple), but that has to be the coolest slide rule ever.
"Let me talk to Americans for a moment. 5 + 4 = 9." Think you've already lost them doc.
lolol
They ARE Americans, so he already did.
+Sure This is the only acceptable explanation for Trump being on the run for the White House! :D
+Sure
"Any math is too much math" is unfortunately not an American prerogative, but a global illness.
He meant using yards instead of meters for the americans
How about an electronic slide rule... that is controlled by a computer, for being ultra-lazy. Type in "10 x 4.2" on a computer, the slide-rule moves about to the correct point and a camera looking at the cursor shows you the answer :)
That's exactly what I thought! Didn't see your comment until after I posted though haha
You would probably have to use some sort of calculator in order to program this contraption.
42/42 Would make it.
Exactly!
I thought the same thing. I want to build a CNC slide rule now.
James Grimwood even better! it does the math, and then makes a gif of it doing the logorithmic calcs
"There's our friend pi!!!!" I love this guy
What a wonderful man. My life has gone from log tables to calculators, it is lovely to see an electric slide rule and I wish I owned one.
I'm a simple guy. I see this man, I click.
I just started using a couple slide rules around the house, and am honestly surprised that they didn't teach us these in lower education. It allows all the numbers and their relationships to make so much more sense.
We need this in schools. It would fast track logarithmic understanding and thus aid in similar math visualizations; as are needed in calculus.
This guy is adorable. I really enjoy how excited he gets, and how expressive that makes him. I bet he was incredibly unpopular when younger, but now with age he's become endearing.
Can't you just imagine him in front of an auditorium full of junior high kids? They'd love him!
I believe Cliff brining one of these to school and using it
Or better yet high school students using these at SAT tests instead of calculators
WHIRRRRRRRRRRRRRRRR
0:09 true happiness
I love the captions right there aswell
Man, I love the giant slide rule! That's awesome!
Interesting thing... A lot of early electronic calculators used decade ring counters, then binary coded decimal, and later on, floating point binary arithmetic, but the early Wang calculators featured an electronic log/anti-log circuit, and actually worked like an electronic slide rule! The LOCI 2 and the 300 series definitely worked in this manner. Wish my 360SE worked...
Hey ! 2 times 2.5 is ALMOST exactly 5!
Yeah, It's 4.98635353746746736436 but close enough I guess. lol
@@harveyharbicht4959 what?
@@juanpgomez1299 It's sarcasm
🙂
A quick thought for y'all. In terms of he accuracy of the slide rule, in that it's more accurate down near zero, less accurate up near 10 - floating point numbers on the computer are similarly accurate in how they work, more fidelity near zero, much less as you go toward +/- infinity.
Added subtitles (English) if anyone's interested.. tho some has to review it first. :/
The fact that he made his slide rule electric isn't even the weirdest part. It's the fact that he owns a giant metal slide rule and has it hung up in his workshop for use.
Giant slide rules were a fixture in engineering classrooms, where a teacher could show an entire class how to use the thing. Most of them got sent out in the trash; the survivors are now collector's items.
I've never gotten such a clear explanation of how slide rules work. This is why I'm subscribed.
absolutely love the slide rule and his way of explaining :)
First time I understand that Slide-rule I have for decades. Thanks for simple clear explanation. Fun the elektric-mechanic you made,Top.
You must have hit the like button as soon as you see Cliff's smile at 0:09
This guy is my favorite crazy person.
Right up there with tesla, the Doctor, and characters that've been played by Johnny depp
Burak Bağdatlı
The more I see of this guy, the more I think it's probably the rest of us who are the crazy ones.
He's the sanest person in the planet
A beautiful thing. I've at times considered building a giant circular one for my collection and motorising it but I have nowhere to actually do it yet.
Brady's fave looks like a Pickett N600-ES, as used on the Apollo Project. Very nice piece of kit.
The subtitles at the start for cliff are just beautiful, his "happy smiling"
I love this nut job!!!
Everyone should experience the joy of finding something in their life that brings as much enthusiasm as this man has for klein bottles.
Well done! One of the best introductions in slide rules i have ever seen. I always carry around with me an Aristo Studio 868 and an Pickett N600-T. Greetings from Germany
Numberphile has many fantastic hosts, but Cliff is the best amongst them.
Sliderules are great when you are grading and need to make fixed adjustments or apply curves. You set them once and then can quickly look up everything without having to enter in every number individually.
I love this guy mainly because of his enthusiasm and the fact he sounds like Tigger xD
I absolutely LOVE this guy.
Look at this! 2 times 2.5 is almost exactly 5 !!!
I do love the passion this person has. Makes you want to pay attention even if the topic sounds boring at first.
Please make a video where Cliff Stoll tells us about the time he was standing on his toilet to hang a clock, slipped and bumped his head, then came up with the flux capacitor.
Cliff never fails to make me excited about math, at least in regards to whatever he is talking about. Would love to see more vids with him!
He reminds me of that cool Klein bottle guy.
He is that guy
someone didn't get the joke
+Seb Wilkes Haha
I don't either
He IS that cool Klein bottle guy!
Antimony THAT'S THE JOKE omg
Holy heck I'm so excited for a new video with Cliff Stoll! He's absolutely my favourite!
Cliff Stoll is an absolute gift to humanity.
Subtitles at the beginning:
[Happy smile from Cliff Stoll]
I don't care how long or short it is or what else I have planned-when Cliff Stoll shows up on my feed, everything goes on hold.
6:39 this is my favorite part! i love any video with cliff in it.
You, Sir, and I say this with respect and affection, are the most beloved and cherished type of "crazy". Thank you so much for your fun and amazing videos. If I could find a teacher like you I would go back to college and try for a degree in mathematics or physics.
Say, why not make a series of instructional videos on those subjects? I, for one, would watch them with great pleasure.
'Electric Slide Rule'. I have a vision of mathematicians line dancing in cowboy boots!! Seriously, this guy is awesome!!
Hanging a huge electric-powered slide rule from the ceiling isn’t normal, But on Math It Is.
Always had a struggle with the decimal place....otherwise what an awesome tool.
Back to the Future.....Thanks
Cliff Stoll is the closest to a mad scientist that we have in 2016
my favorite Numberphile vids starr Cliff.
That spawned at least some interest in how log actually can be used! Thank you.
I love how it starts with showing his work and his overhappy face, without saying one word.
Very charismatic!
Of course Cliff owns an electric slide rule. Because why wouldn't he?
Thanks for helping keep the slide rule alive!!
You are insane, I love it. I would love to know the details of how that slide rule works. Have you thought of having it controlled by a computer. Could have it as the first analogue display for a digital calculator. Thanks for the show.
This man is proof that if you love something, that love just shines through, and is infectious to others. 😊
I just love Cliff so much...
0:09 Get you someone that looks at you the way Cliff looks at his measuring sticks.
Cliff wouldn't happen to have another thousand of these under his house, would he?
I want one. 👍
Awww I love how the captions say “happy smile from Cliff” ❤️
Yay, the more Cliff the better!
I LOLed at "almost exactly 5." Classic slide rule humor.
Cliff in probably in my top 5 favorite people of all time.
Only Cliff would have something like an electric slide rule. His videos are always so awesome.
This man would have made me way more passionate towards math back when i was in school. I missed out
His enthusiasm fills me with so much joy I just have to laugh and smile at my computer. I love him.
Cliff = Instant like
I love Cliff Stoll, made my day knowing another video is posted.
This is a lot different than the electric slide I was taught...
Underrated comment
True, but at least it's more widely-practical.
It's electric!
+Noel Goetowski Never underestimate the unbridled power of the electric slide.
You gotta feel it
Me: Sees a thumbnail with Cliff Stoll
Me: Clicks on video
I love this guy! His passion makes me excited about math too
There are several formulas to substitute multiplication. You can use a square number table and it is obvious that:
xy = z^2 - (z-x)^2 with z := (x+y) / 2.
or a sine and a cosine table
1/2 (cos(x+y) - cos(x-y)) = sin x sin y.
but logarithms are the best for it with
log(xy) = log x + log y
Even a division can be calculated better:
log(x/y) = log x - log y.
Great!
The second was used to do multiplication with trigonometric tables in the 16th century: en.wikipedia.org/wiki/Prosthaphaeresis
It was a forerunner to the invention of logarithms. From a modern perspective, it is using complex logarithms.
I love his enthusiasm.
You just gotta love the enthusiasm of Klein bottle guy :D
This video is grand. Thank you for the perfect captions.
My favorite part was when pi made a cameo. Such a celebrity, that guy
I really want Cliff to say inconceivable really loudly.
6:44 It looks like someone worked in the NSA :D ...
i dont get it XD
Sticker of the NSA behind those tools.
Probably. He became "famous" for capturing some hacker who broke into a computer at Berkeley National Lab (which has a lot of confidential data). During this period he worked togheter with the NSA,FBI,CIA and other "big guys".
together *
So they gave him a sticker instead of medal of honor/
I never stop loving his enthusiasm :)
*sees thumbnail
"ITS THE KLEIN GUY!!!"
*clicks on video
*was not disappointed
Klein/10
I think my dad's first calculator was called an electronic slide rule, thus I initially thought this video would discuss early handheld calculators. This video of course turned out to be neat in its own way.
Matt Parker should do a review on this calculator!
He understands what he does and uses. It's great to see!
Lol: "Look at that! Two times two point five is... almost exactly five!"
You sir are a king amongst men.
could you make a mobius slide rule?
Circular slide rules, with scales that wrap all the way around in a continuous loop, are already a thing. So... maybe?
You could, but having only one side would be a disadvantage. The back side of a high-end slide rule has a whole bunch of additional scales (for doing high-end math.)
I aspire to be this guy!!!! He is just so genuinely excited abut what he does and I freaking love it!
If you are not filled with excitement by the thumbnail, you're doing it wrong.
Cliff Stoll's enthusiasm towards mathematics is everything I need to live.
I'm a simple man. I see Cliff Stoll in the thumbnail, I click the video and give it a like.
If, after all this time, you're still this excited about what you do for a living, you've made some great choices in life. I hope I'm as happy with my job when I'm his age.
What a friggin' nerd. :P
This is almost as dorkably loveable as the calculator unboxings.
I love this guy, please do more videos with him
Is this the Klein Bottle guy
Nevermind, just read the description