How a quartz watch works - its heart beats 32,768 times a second
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- čas přidán 22. 05. 2019
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Quartz watches have a tiny crystal tuning fork inside that vibrates at 2^15 Hz and there's a really clever reason for that. This video also talks a bit about how mechanical watches work.
CORRECTION: Ok, so I actually hung 16 flip flops! So you do need 15. I'm an idiot.
The atomic clock video is here: • How Do Atomic Clocks W...
The piezoelectricity video is here: • Piezoelectricity - why...
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Q: Is it possible what is happening with the clock in the passage of the Russian film? czcams.com/video/LDlMJWGNs1U/video.html
Nice xps 15, i have one too
@@matty1234a1 it's a beast!
The flip-flop explaination was hilarious, i already knew pretty much every facts, but i'm mostly here to support science channels on YT
And your videos are well made btw, keep up the good work pal
Is it just me, when I see 75% off, I think wow must be overpriced to begin with, and just avoid the company. Feedback to nordvpn: if you just said what the price was (after the discount) I might be more willing to click through.
He actually chained flipflops together for that joke, what a hero
Lmao. That joke is funnier because of your comment.
And later used them for explanation. Absolute legend.
He didn't account for a flip flop leap year though.
MADLAD
A very good visual aid
You don't have to explain what a flip flop is, I'm a redstone engineer
same,
Minecraft redstone engineer
Haha prince nailed it
@@Ormaaj right!
That's why minecraft is useful for becoming an engineer!
Haha nice
I have been a software engineer for 33 years and involved with electronics for over 40 years and truly this is one of the best explanations that I've ever seen for how frequency division works just an outstanding job!!!
It's also cool that quartz apparently vibrates at exactly the rate of a signed 16 bit integer. Did I say that right?
If unsigned, a 16 bit integer has a max value of 65535, you sign it, that drops by half, 32,767.5 (except that we would round, because it's an integer). Not sure that it matters, but it kind of made me smile. =)
@@valleykid6577 man because you talking about 16-bit signed integer (so it's 2^16) sorry for ruining the miracle 😁
@@valleykid6577 We don't just round it cause it's an integer, and even if we did, it would be rounded to 32,768 anyway. To understand how this all fits together it's really important to have a grasp of how totals are specified in electronics and comp sci. It can be a bit confusing, so I'd probably suggest reading up on cardinality vs ordinality on wikipedia maybe.
The value 2^16 can hold 65,536 integers, and if we were counting as we do normally in everyday life we would start at 1 and end at 65,536. However, in computing we usually start from 0, so even though there are 65,536 numbers, the maximum value we reach is 65,535 because we count 0 as well as 1. Therefore the value of 2^15 is (2^16)/2, is 32,768, but counting from 0 and dividing by 2 gets you 32767.5. Think of it like this - how could a power of 2 not be an even number (i.e. divisible by 2)?
Now, just wait until people realize that motherboards use quartz movement for clock syncing the BIOS.
@MrDracconus I think most technical people understand how a clock signal is created. Well, at least I would hope they do!
A quartz watch is often significantly more accurate than a second per day. But the clock in your car is also a quartz clock, and you've likely noticed that they must be adjusted often. The reason is that you're wearing the crystal on your wrist which has a constant temperature. Your car gets hot and cold depending on the weather, and the crystal's thermal expansion changes its vibration frequency.
But quartz has low thermal expansion coefficient
@@aashaykadu6549exactly that's what I thought 🤔
Maybe he's talking about micro expansions
@@aashaykadu6549
Doesn't matter if it is low. Seems to be enough, and the resonant frequency still varies with temperature. It's considered the main source of error for quartz watches.
I'm not sure though if that's actually the culprit for car clocks supposed high inaccuracy.
Depends on the quartz type too though, ideally the deviations cancel each other out, which can be influenced by choosing the proper cut and volume iirc.
My watch hasn't lost more than a second for 4 months and it's because its my internal body temperature (I think) and it was 18 bucks on Amazon
He actually made a flip flop chain. Here good sir, have my like.
Brilliant British humor at its best. :)
Hey, you! This isn't Reddit!
@@wellesradio What, behind the Reddit?
he actually made a comment about flipping flip flops and gave him a like.. here good sir, you may also have one..!
@@chetanbansal01 you actually made a reply to my comment about flipping flip flops and gave me a like. Here good sir, you may also have one.
13:53 You do need 15 flip flops and you had 16 hung up. You buy flip flops in pairs :)
Damn. You're right. I've made a correction in the description. Thanks!
@@SteveMould Off by one error to the power of two xD 13:55
@@SinanAkkoyun two off by one errors DO make a right!
@@SteveMould your brain at that moment was "ok so 4 x 4 =15"
@@SteveMould Why don't they go the distance and use 2^16 Hz? Because if dogs can hear it, does it not eventually annoy them?
A long time ago, when I was doing my GCSEs, I went to a STEM event where you were one of the presenters. If I remember correctly you demonstrated harmonic resonance patterns in sand on a vibrating plate. You were a huge inspiration for me getting into STEM. I went from that event and ended up getting an electronic engineering masters, and now I'm nearing 30 and working as an FPGA engineer watching you explain flip flops with flip flops. 😂
Thank you for everything you do Steve, you inspired this engineer to find his dream career. I hope one day I can do the same for the next generation.
I've been on a rabbit hole of learning how a computer works. I learned about transistors, gates, memory, cpu, gpu... Of course I don't understand everything, but this video is exactly what I was looking for to understand how it actually works. Thanks!
"I've actually got a redundant flip-flop here. You don't need 15; you need 14. That was my mistake; that's called an off-by-one error."
- Steve, as he holds the leftmost flip-flop in a chain of 16
off by 2 error!!!
flop-overflow-error xD
Off-by-one off-by-one error
@@krebgurfson5732 off by 10 😉
So what he thought was an error of 1 was an error of 2, hehe
"I am not going to explain what a flip flop is", proceed to provide the best explanation I have every heard.
he wasnt explaining it though. was explaining everything else 😂 still better than what i heard from other in the past though. i love his shit. prob gonna get his books next month for my 2yr son.
As a computer student, I've literally only understood the purpose of flip flops now.
@@bravomike4734 as a minecraft player, i understood the principle of flip-flops with mumbo jumbo's redstone videos
@@bravomike4734 Bruh, it's just bits turning on and off
@@dimaryk11 Yeah but I gotta explain D Flip Flop, SR Flip Flop, etc in more technical terms with logic circuit.
Really loved your video ; especially the " chain of flip flops ".
Thank you for taking the time to explain a rather difficult operation into terms all us can understand.
Keep up the great work.
Can't wait for your next video.
😁😁😁
Too bad, at 13:53 when he says he has 15 flip-flops, he actually has 16 (4 lots of 4).
And depending on exactly how you care to count, he does need 15, not 16 or 14.
Looks like he purposely marked that left-most, 16th, flip-flop a different colour, then got totally confused with the actual count versus the 'off by 1 error'.
This video is a high quality, comprehensive, yet communicated in an ever-engaging way. Not easy to pull off! The overall effect is is right up there with "The Secret Life of Machines" IMO. Bravo
This is the best explanation of piezoelectricity and quartz watches out there, thank you so much!
Its also how binary works
When he said "Flip-Flops" I had the feeling it's gonna be that clever British humor... and sure enough we got flip-flips alright... lol So now I know why cycling 32768 hz (ticks) through a 2^15 flip-flop = 1 sec :)
just came from a 1936 video about transmissions... this video _needs work_. sorry, but you have to know it well enough to explain it clear and concisely with *accurate* graphical depictions of the mechanisms at play.... flip flops? hall no.
this would be better redone, as its more a mathematical approach and a half arsed attempt at a graphical explanation. i mean its likely better than most stuff out there, but those mid 1930s videos really ruined it for me.
@Dr. M. H. Constructive criticism. It was more strongly worded when typed out, trust me. Not been ill will for a long time, m8, sometimes just have enough of the worsening quality of internet content. Traps a lot of young souls and messes them up. I'm upset enough about how messed up some people get that watch TV, stupid shows that make them psychotic and out of touch with reality.
Enjoy doctoring, keep up on pubmed and CME, depending on what kind of Dr. you might be.
@@Baigle1 Chevrolet had lots of money and I'm sure the Jam Handy organization had a bunch of people ready, willing, and able to spend it. I think you're being a bit hard on our host.
Steve: "That's called an off by one error, happens a lot in programming"
Me, a programmer: *vietnam flashbacks*
Yeah... but that's not actually called an off-by-one error, is it? What he's describing is just a spare bit, like you'd see with ASCII (since you only need 7 bits to represent ASCII characters). Off-by-one errors have to do with iterative loops... e.g. you accidentally iterate one too many times because you use >= instead of just >. Not to be picky, but if he explained how beta-amyloid plaques can build up in the brain causing cell death, and then said "This, by the way, is what people in the medical field refer to as a Heart Attack," you'd call that out right?
@@deathbyrebirth8894 The chain of flip-flops is an iterative loop and he had one more than intended; he forgot that the signal itself counts as the first power when counting down through them. The 15th flip-flop causes the loop to iterate one time more than intended; 15 flip-flops would be appropriate if the crystal oscillated at 2^16, or 65536 Hz.
@@pshalleck Yeah, except the OB1 error was that there were 16 flip-flops on the chain not 15
@@vannoo67 I heard you liked off-by-one errors, so I put an off-by-one error in your off-by-one error.
this is too relatable
Steve, I found your illustration remarkably comprehensible. They way you started with basic questions that how to keep the oscillation going and regulate it is the key to build the watch is evidence that you really understand how learning happens. Thank you!
Best content on CZcams. Great job. Consistently provide interesting, informative and not bogged down with any hyper dramatic music and over production.
Thanks for being better than the masses. You truly deserve awards and riches. We, as a society, seem to value and reward all the wrong things.
You just taught us concepts of physics, chemistry, math and programming. Amazing!
and alternate use for footwear
there's still room to improve regarding counting ;-)
But fair enough, I had to count several times to make sure it are actually are 16 flip flops hanging there and Steve kind of did it on the spot, so who am I to judge :D
@@db8989 yeah, when the binary counter value reaches 32768, the MSB gets turned on, likewise, when it hits 65536, it turns off. That's how a 1 Hz wave can be generated from 32768 Hz
Steve spotted at a local convenience store "I'd like 7 and 1/2 pairs of flipflops please"
That reminds of the Numberphile video where Brady ordered 43 nuggets from McDonalds*.
*Other horrible fast-food chains are available.
And then he finds out later that he didn't even need that 0.5 pair of flipflops,
Convenience stores don’t sell flip flops.
@@Miquelalalaa I bought mine from a convenience store
@Ricardo Lopes McS***s as they're more accurately known.
As an Electronic Engineer can I say this is just awesome - the flip flop bit was genius. I love all watches, particuarly Seiko and have a mechanical KS56 from 1971 accurate to 1s/day but I also have high end Quartz models from the late 70s accurate to 10spy and 5spy - these were so expensive back then they were out of reach of everyone but you can get good examples if you know what you are looking for. Seiko were masters of the Quartz movement and the end result was high precision thermocoupled quartz crystal timepieces like the Grand Quartz and Superior Quartz, an exercise in Japanese opulence
Yes, I'm an EE too and I laughed at the chain of flip-flops.
wasnt even thinking about steve mould, i was just wondering how a quartz watch works and here steve mould is explaining it better than anyone
thank you steve mould
"That's called an 'off by one' error. Happens a lot in programming."
*throws headphones*
*screams in C#*
I am not a programmer, but I LOLed hard.
@@BamoAAziz I LOL'd at myself 🤣
C# the language or C# the musical note 🤣
@@asadnaeem76 Both 🤣
I would scream in C++
Minecraft redstone taught me what a "flip-flop" circuit is.
First thing I thought of
t flip flops are what we call them in minecraft
same lol
@@killingtimeitself thats what a certain kind of flip flop is called in digital design too. I passed my exam through minecraft lol
@@exodeus7959 You are perhaps thinking of Jamaican elections?
Flip-flop Circuses?
I am an electronics & automation engineer, and let me tell you, your explanation is astonishing good. You have explained a complex process in an extremely simple yet perfectly correct way.
Very good. Been reading a book on the history of time keeping, so felt the need to see proper video to demonstrate how the quartz movement works. And this certainly helped.
Man! I've been working with timing circuits since 1979. Mostly 555 for all my personal circuits, but quartz for the old analog TV subcarrier frequency (3,58 MHz). Quartz controlled timers just worked like magic and that was that.
I never fully understood them until now. I totally understand the piezo-electric effect. I busted open dozens of stove lighters, tweeters, but never had someone like yourself to explain it so well to me. I ought to have regrets, but it would not matter--just happy to have bumped into your video regardless how late. All I had to do was bust open a crystal and look at it under a microscope to realize it was a tuning fork shape device. My lame imagination of the shape was a 'salt crystal' with two wires which some factory worker chipped away at with a tiny chisel until the numbers were right. If they chipped away too much, then they start with a new fat crystal. Thanks and bless you for taking the time to do this.
Wait a minute, wait a minute doc... are you telling me you built a time machine... out of a Delorean?
@@dank6617 Nah, I only played with MC790P dual JK RTL flops when I was a kid.... in the 60s.
I'm a computer engineering student and right now I am laughing out loud to your representation of flip flops.😂 keep up the good work sir.👍
I love how the most technical people come up with the most oddball examples from things. I still crack up thinking about how I was taught pointers using the handle off a broken cooking pan and a bunch of yarn taped to a chalk board.
Flip flop technology is amazing ... just don't use socks otherwise you'll look goofy.
@@Mr_Spock512Flip-Flop technology is amazingly simple and I understood this at the age of eleven. I worry when people get excited about something so simple in that they would never be able to comprehend modern processor chips and alike that contains billions of flop flops etc. It is like saying I understand how a stick works.
I find the way you explain things, and that you remind us of what we just learned as you build in new knowledge is the clearest of anyone I've seen. Thanks!
He always seems so happy to explain these complicated processes. It’s so cool to see things like this.
He's a modern-day Johnny Ball!
This is one of the very best videos I have seen on CZcams ever. There is no hype, no BS, just very clear, concise, and easy to follow explanations.
you sussy baka
No BS?
Flip,flop,flip,flop,flip,flop
😐😂
@@uwuowo4856 no bs yeah sure, refers to a theory as fact not even 2 mintues in.
You should look at Not What You Think, or Real Engineering, or Verittasium
@@cheezesmoker8851 Do you not know how theories work in science? Sure they aren't facts but in science we don't like suggest something is proven.
You didn't mention Casio's trick: Early quartz watches were not particularly accurate until Casio started calibrating their crystals at 37 degrees C... The body temperature of the wearer is used to keep the watch accurate.
Antony T Curtis So basically if you have fever the watch would run slightly faster?
@@Noise-Bomb Doc: how high is your fever
Patient: 1 second per day
@@TheFeldhamster this is probably the most niche joke I have ever heard in my entire life. Amazing lmao
Well 36.6 deg С, to be precise =)
Doc: How high is your fever?
Patient: 1 second per day
Doc: Hmm. Take three flip-flops, twice a day for seven days.
Patient: But I'm allergic to flip-flops!
Doc: Then shut up and die.
You're an amazing teacher Steve. Your passion for science is inspiring. Thanks a lot for spreading knowledge :)
Great video. That answered a couple of things I never knew about quarts watches. Thanks!
Side note: plenty of mechanical watches can easily keep time better than one second per day. The one I wear daily gains about half a second per day.
But, a couple of my quartz watches are within a couple of seconds per month, so still better in that way.
Still, there aren’t many times I’ll put on a quartz and leave the mechanical at home.
I can't get over the fact that there were 16 flip flops, and he thought there were 15.
Especially when coupled with the fact that upon realizing there was an extra flip flop, he erroneously assumed you only needed 14 to step down. Ironically, while there are used in powers of 2, they are sold in multiples of 2. I suppose whoever set that up was scratching their head while holding an extra flip flop and figured they'd hang it up as well.
@@ptrinch it would be great for him to reply and acknowledge, but ya know....lots of comments.
The off by one error, happens a lot in real life (:P)
I can't get over the fact how he explained all this so well, made this little error and corrected it in the description and then calls himself an idiot. This dude is anything but an idiot
I didnt even notice that
Explaining flip-flops with flip-flops. I love it!
Explaining a chain of flip-flops using a chain of flip-flops even! What a man
I wanted to see 32,768 flip-floppings.
the flip flops also make sounds when you walk like "flip flop.... flip flop....."
@@leerman22 why? I think you are missing the division by 2 to arrive at 1Hz
exceptional explanation Steve, haven't seen these level of teaching on youtube.
I was looking for a good explanation on how quartz watches work. This is about the best explanation I could find. Thanks, Steve.
Every second of this video was really valuable. Thank you for sharing !
i see what you did there
Because their expensive
Except "this video is sponsored by nord vpn"
@@albertweedsteinthethuggeni7797 no man, he has to even have a sponsor for his videos and after watching such an amazing video that ending was perfectly done
I guess what you meant is every 2^15 quartz vibrations of this video was amazing
LOL, Never have I seen someone explain Flip-flop circuits using actual flip-flops.
And a chain of Flip flops on an actual chain.
@@dansmith2863 Hm. I didn't notice that.
If CZcams had something like an "UltimateLike" where each user only has 1UltraLike and can give it to one video, this one will get it. mf explains a Chain of Flip-Flops, with an Actual chain of Flip-Flops, flipping and flopping around.
this video has the most complete information to understand quartz watch and no one else come close. well done steve!
It's always been fascinating to me how Quartz Crystals are so important for digital timing circuits
When I was 11 my friend found a rock with quartz in it and thought he'd become a millionaire.
It could be any crystal really but quartz is just the most abundant
@@smears6039 we mostly make it in labs these days
"If you let it vibrate then it will eventually die down"
**actually waits to see the ruler stop vibrating**
Legend has it it is still vibrating and expected dead wud occur in 2090
If there is no opposing or resistive force then it may continue
this video should be declared official learning in schools, colleges, and everywhere... Every bit and bytes are valuable.
Schools have become commie indoctrination bunkers.
In the US, even Engineers lack the credentials to be educators, fortunately, ambitious people can find these videos to learn for themselves and save the patriotic stories and songs for school
@@hxhdfjifzirstc894 not sure about the commie part unless you're chinese but yeah
lol no one needs to know about how quartz watches work
@@hxhdfjifzirstc894 lol I wish
Brilliant explanation of flip flops, I did this in my A levels two decades ago and never grasped the Vale of flip flops. Thank you.
I know i am waaay late to this video, but... what an awesome video. I understood the basics of a quartz watch, but this really cleaned up the details. I have always been a fan of quartz, and this video solidifies how so important they are to the industry.
well done
You do need 15 flip-flops! You miss counted your chain, you have 16 on that wall! Amazing video! Subscribed 🙏
Yup, 0-14 is 15.
Actually 16 bit counter in which 16th bit is used as carry, which is your bit to trigger second, other circuitry would reset it, trigger the tick logic, that makes sense in real scenarios as counter won't have to wait further for next second. Microcontrollers and programmable logic is taken for granted these days!
If you divide 2^15 by 2 16 times you will get to 1 which is the frequency that you would want.
this is what a flip flop chain actually looks like on silicon www.alibaba.com/product-detail/custom-soft-PVC-rubber-silicone-flip_60450932806.html
@@ahmadalhuwaish7504 If you divide 2^15 by 2 16 times you get 2^(15-16) = 2^(-1) = 0.5
This was way cooler than I was expecting! Props (or flops) to you for actually chaining together the flip flops and using that to explain it. that totally helped make sense!
you sussy baka
its just a joy to watch you explain. You're an amazing teacher. After a full master of theoretical physics I've for the first time really understood these parts (apart from learning them). Further, I think its even more funny how you found out about your off by one mistake. Its great to find joy in them.
That’s absolutely the best explanation I’ve heard about the subject. Amazing educational skills! Thank you very much for the content
I rate this video 9.7/10: flip-flop redundancy is a costly error.
This is crazy, I’m currently taking a basic electronics course and I just learned about logic gates, crystal rectifiers, and pretty much all of the stuff he went rover in this video. In fact I have a test on it tomorrow and this just helped further my knowledge.
How was your test?
Jainish Patel 96, I missed a simple question about zener diodes because I wasn’t paying enough attention
@@tylerg7118 Congrats!
"went rover" ha ha ha, he sure did. good luck on the test.
Fun and educational! One always knew that there was something ticking inside watches, but it was a mystery how quartz watches converted the vibrations into counting time. Thanks a lot!
Did you just use a chain of literal flip-flops to explain binary?
Yes he did, it is a bit easier for some to visualize than saying so this signal turns it to a one and then with the off signal a zero and goes on down the chain. Some people don’t pick up on stuff like that some do he just wanted people to learn and used the easiest way possible to explain it.
I have a better question: did he own for some reason 8 pairs of flip-flops or did he bought them for the demonstration only? And what happen to the extra flop?
hahahaha ..... unnecesary but funny !! this guy really push the enevlope !
No, he used a literal chain of literal flip-flops lmao
analogy ❤️
Thank you so much for mentioning the Accutron! Most people who explain quartz watches neglect to mention the Accutron, even though it is the predecessor to the quartz system.
Todo claro, seriedad, claridad, profundidad. Muchas gracias
Your flip flop method helped me a lot You visualized something highly abstract so even I could understand.
Being a Watchmaker myself I got to say brilliantly explained.
I agree, also being a watchmaker!
@@jurivlk5433 is watch making hard?
@@jurivlk5433 Start a channel!
"My bad you actually need 14 cuz this is 15 and i have one to many"
actually has 16 flip flops
ah, thank you, i was gonna go crazy with this trying to figure out how 14!
he just bought 8 pair of flipflops.
so, he have 1spare why not just hang it all.😂
You need 15
@@akashshukla7 The operation of the second hand is the 15th signal so you don't need the flipflop at that position, just directly power the stepper motor at that point.
@@andihartono92 because now his flip flop watch runs at 1 hour every 30 minutes
You are a true genius. Very few experts can explain with such authority. Wow, Steve!
What an outstanding video!! It takes a special gift to be able to explain very technical concepts in an easily understandable way. Thank you, sir!!
As an educator I am seriously envious of your capabilities as an educator. If my students knew about you they'd wish they had you for first period instead of me 🤔😁
That's really kind thank you. Thanks for being an educator in person. That's awesome.
Yeah, I come from a family of teachers and I noticed that as well, especially the way he quickly digressed from the discussion about atomic clocks, giving just enough information to move the student forward without distracting them from his key points.
8 pairs of hardly used flip flops for sale on ebay now.
Still rewatching your videos from years ago. I really love your teaching style Steve! Oh and when you brought Destin to your back yard and asked him his thoughts on the wich way the water will come out of the spout that you constructed he said the right way but I think it's because he is an engineer 😉 if it were a aka normal everyday joe everyone's intuition would be the water will drag behind aka "trailing" behind circular movement but what happens is completely opposite what you would assume. And wow wow wow, I was amazed 👏🏼,
This blew my mind up!!!! Thanks so much for your amazing content.
This should be the benchmark for all purposes of teaching.
gewinnste
What, painfully tedious?
@@larjkok1184 I found it tedious only because I already have the electronics knowledge of latches and FFs. However, for someone completely new to the field, its a nice explanation on the frequency division of a clock signal.
Kids ain't interested anymore they're more interested in I'm a celebrity or strictly or Britains got no talent.
paulkazjack You’re just as ignorant as the people you’re trying to describe.
@@larjkok1184What would you have improved?
I've spent most of my life as a programmer, and really enjoyed this video. Not just informational but almost stand-up-comedic. The flip-flops chain made laugh and made my day; Wish there were more such people on earth.
Superb video. As an Electronics Engineer, I appreciate Digital watches just as much as mechanical watches. We did a mini project in College to create a digital LCD clock using 8051 Microcontroller.
Very nice, easy, and even concise explanation, well done.
About the precision possible with mechanical watches: I have a pocketwatch that came down from my great great grandfather that is precise to half a second a day. It runs off from the exact time between several and 20 seconds plus per month, depending on weather/temperature and rewind intensity. (Maybe other influences, too, I'm no expert on that.) A shame that it is of no practical use today.
4:36
Everytime they get too close to you, you push them away.
same.
same....
bruh
Hahahah
DEEP
Dude..
YES
Your explanations are just on point. I'm a CS student, had a semester of flipflop explanations but somehow your simple flipflop explanation explained more 😍
Keep doing what you love my man. God bless your life
If you really learned more about Flipflops in 4 minutes on CZcams than in a whole semester you should really think about your uni choices tbh
@@c4alexc4 ikr. Sucks that there are people who arent fortunate enough to end up in a place even passable as a university. The bright side is we got guys like steve to save us ;)
@@c4alexc4 Yeah, you need to have nice pedigree if you want to be hire as a minion in Communist (Silicon) Valley.
Great explanation of how the quartz crystal oscillator works. Amazing both in its simplicity as with its ingenuity!
What a lovely, succinct, and easy to understand video. Bravo! I had fun learning about this :)
"So, how DO you divide your time?"
"With Poundland flip-flops obviously."
Seriously, clever visualization. thanks!
As a school kid I was curious to understand how a electronic clock worked and ended up spoiling one (got thrashed for that). I didn't have resources or reading materials back then in 90's in India :( .
But now I feel relieved or enlightened.
Thanks you Steve. Really enjoyed your video.
This explanation was not very in dept, there is more to be known about the circuit and temperature dependency. I know for a fact that even the vast majority of EEs does not know how a simple quartz oscillator works.
Amazing video explaining the quartz to keep time!! Down to the nuts and bolts!! Thank you Sir!
After watching this I understood the use of crystal in clocks. Excellent explanation 👌🏼
Was watching this video on my tv. I had to run upstairs and grab my phone just so I could write this comment. This is an EXCELLENT explanation. Great video, subscribed!
I always find it funny when watch snobs say "you'll never find me with a quartz watch. Mechanical watches are superior." Literally the only thing a watch is supposed to do is keep time, and quartz watches keep better time. I had a $5 quartz watch that kept time way better than most mechanical watches. Don't get me wrong I love mechanical watches. They're amazing pieces of engineering, and they're beautiful, but they don't keep good time, and if you don't wear them all the time they stop running (which means you're constantly adjusting it whether you wear it or not). Even losing 5 seconds (which is pretty accurate for a mechanical) is a lot of time loss. I have a pretty cheap Casio that has a 10 year battery and only gets about a minute off every 4-5 months.
true
I don't understand why use any watch nowadays. Everybody has a mobile phone and uses it everyday everywhere. Even before smart phones, all of them had clocks.
@@mariobros7834 Looking at your wrist is far more convenient than digging a phone out of a pocket whilst also having to wake it up.
Mechanical watches are shit.
@@mariobros7834 Aside from what the other person said, it's pretty easy to find yourself in situations where you can't, shouldn't, or aren't allowed to access a phone. Work, school, formal events, driving, lost it, camping, being very near water, keeping it somewhere else, stuff like that. Even just wearing a dress can make it surprisingly inconvenient to check a phone, since the big brains in fashion decide they aren't worth pockets. I usually have my phone within arms' reach, but watches are nice for situations like that.
the flip flop demonstration dropping the frequency is crazy, thanks for the video :)
Your video is the best explanation of how a quartz watch keeps time, thanks so much for sharing....😊
As a computer scientist, the T-flip flop binary counter was the cutest explanation of the concept I've ever seen. The effort and will put into it was amazing. I immediately felt at home as soon as you mentioned the quartz' frequency. Thanks a lot for this truly great explanation of quartz watches!
"You know a pendulum swing takes one second" Actually I never thought about that before hahahaha
This sounds like something my brother would sAY ALL THE F TIME
hahaha...*nervous laugh*
i maybe sense some misunderstanding - the pendulum's resonant frequency is dependent on its length and the gravity. you *know* the swing takes one second because you've *tuned* it as such, by adjusting the height of the weight (the large disc) at the end.
Călin Guga Actually the weight doesn't matter in determining the frequency. But I guess it's used to lower the effect of drag
@@abdullahenaya You should read Calins reply again which is entirely correct.
Thanks for explaining the working of the quartz watches so clear. Merci beaucoup
absolute mad lad. clear concepts and interesting explanations 💯
As an Electrical Engineer, I have to salute the fact that you demonstrated flip flops using flip-flops. The idea would never have occurred to me, and it's GENIUS.
I know how a 'flip-flop' circuit works, I've built a few...
...that chain of flip-flops though!
I cant get the image out of my head, lol
This is a counter circuit, if I’m not mistaken. This is how you count in binary 😉
@@allajunaki Correct 😀
It's too funky n funny!
Poetically PRICELESS humor,🤣 umm, unless you subscribe to the channel, but, as long as the original humor flows periodically, it's miniscule! LöL 😂 hahaha Hahhhhh
Laughing is an XLNT form of healthy excercise that'll keep you young at ♥!
laughs in binary
Arr so you know that these "Flip Flops" are in actual fact THONGS. But i guess for decency purposes where you live they have to be re titled .
Excellent explanation as always. I really like the informal style and enjoy the humor!
I keep coming back to this and the barbecue lighter piezoelectric video. All your videos are great for conversational fun-facts and also fun home experiments!
LMAO, I've never seen someone explain how a flip-flops works with flip flops. Good job.
Just got into your channel from SmarterEveryDay. It takes a great mind to be able to explain things concisely and make them accessible to the average person, and you absolutely nail it. Good stuff.
Fantastic presentation and eloquent delivery.
Brilliant video mate, you described better than any other video I've seen, thanks a million Steve.
Explaining flip-flops with flip-flops.
Subbed AF.
Watching Steve's video esp the chain of flip-flops I also realized that the flip-flops themselves act as a sort of "digital counter" of the number of (1 over 32,767) seconds that has elapsed, and can actually be used directly as a sort of "time register" to tell the portion of one second in increments of (1 over 32,767) that has elapsed, which, when rounded to the nearest .001, could be used to count milliseconds.
you sussy baka
@@clonefighter1996 You are more attuned to powers of two than I am. I can see you are a true computer/software engineer.
@@clonefighter1996 🤓
Sure. This way to chain FFs makes a "ripple counter". It works just fine but isn't done outside of hobbyist demos; it's got other issues.
I think that was what Steve said, otherwise, we need to use gears to drive the motion.Now use the output of relevant counter to LCD
Nicely explained. I thought I knew how crystal oscillators worked but I learned something about quartz watches, thanks!
For anyone who didn’t understand the explanation of flipflop chains, it’s basically a chain of 1:2 gear ratios but with electric speed and precision
My 400 level cs class prof: does your code work?
Me: yes, but once in a while it's off by 1 idk why
Prof: it happens, full points
Do you go to ucf?
1:46 Just take a moment to appreciate Steve arranged that thing for six seconds of footage of something to mention briefly only to say it wouldn't work on a ship.
Need more of these videos, very well described!
Love your work! Wish I'd had teachers like you!