Cardinal I mean like it’s already kinda complicated and now they add in quantum mechanics and stuff. That’s the one field of science I can’t really grasp.
In ten years they will have that building of gadgets shrunk into a quantum chip in a plastic wrist watch with 7 colors to pick from selling on EBay for $8.99.
In 10 years, they’ll have to just look outside to see when it’s noon because that clock is more precise than the actual movement of Earth around the sun.
Not really. It's still hard to imagine making a quantum computer or even an "oldschool" atomic clock portable or even cheap enough for everyone. The amount of noise reduction needed is just too much. But it doesn't matter really. The clock on your laptop or Apple Watch is already synced to an atomic clock through the Cloud.
@@heesingsia4634 Nope, we don't permit to release the quantum gas in elevators, it is way too hazardous. We only allow it under professional supervision on hotel rooms, classrooms, sitting rooms, restaurants, etc where it is easy to escape. Remember, each life is important.
Maybe it's because it has a real scientist explaining something in a real place, instead of some youtubers with that god awful wannabe-rainbow coloured background and shit, could that be the reason?
*THIS* is the kind of video I would *_love_* for them to make all the time! It's so insightful, straight-forward, includes an interview with an expert, and I learned so much about a topic most people don't know much about at all!
"Time changes not, but all things change in time. For time is the force that holds events separate, each in its own proper place. Time is not in motion, but ye move through time as your consciousness moves from one event to another." 36 000 BC
Time is very personal. *Different places have a different time.* Different people have a different time. Even different chemical elements have a different time scale. This clock is a beautiful machine. Very complex. Maybe it will help humanity to understand the concept of time much better than we do now.
Armen Manukyan that's could totally be true but... it seems that time is everywhere around us not just something in our mind. If time is not real then there is something else because it is involved in everything.
Groan... is it sort of like how you don't understand that dumb damsel dicks magnet comments build "cLocks" for your spread poon flaps that read LOOK HOW EASY this slag attached to me don't know what Lights or mirror reflections means. Is.. is it sort a like that😘
@@Mark-uk8wz No, it has been here for decades. How do you think lasers work? They have been around for decades, even as simple pointers. LEDs? Same thing. Transistors? Even longer. They are all based on quantum physics. Quantum physics itself was pretty much all defined in the 1930s. Since then it has just been refined and proven time and time (heh) again.
I'm happy to see something like this. I have a feeling that if we learn more about how time works, we will learn more about our universe. Space and time are the same thing, after all, and we know a lot about how space works, but hardly anything about time. How are we supposed to focus on the big picture when we're all focusing on one half of a whole?
Woah then ur children will love a very long life, or maybe he will become giant somehow and put the whole room on his hand😃 seriously its not that easy and unecesary to have such prescise clock on ur hand but i think u can check on the internet atomic time bcs some atomic clocs are connected (i think)
The same way that it affects every clock. Time runs slower in high gravitational fields. This affects every method for measuring time. This is why the GPS satellites need to take into account the gravity strength at their orbital height as well as their velocity (which also affects the rate of time).
Easy because any atom emite bay that divice IT Will move în side or slow when îs move depending The gravitațional feld. BUT îs usles I belive this kinde of tehnologii. And if they tell You abauth dark matter they have secret knolege.
That's an interesting idea...Could this be a way to falsify/ultimately test Relativity? Yeah, it's pretty much agreed upon but if we can look at such small levels and see changes like he said at the end, this could be a way to falsify/test it.
@No Idol No problem with further doing things at an extremely precise level. As long as competing theories are at least plausible (even if unlikely), falsification shall always be a good thing.
Kujo's Vision What? The molecules of our body and the atoms that comprise them are connected through electromagnetic force, but that doesn't mean we're made of electricity.
AFAICT, the outermost electrons of atoms of lighter elements oscillate between energy levels at a lower frequency than the outermost electrons of atoms of heavier elements. (Inner orbitals -> big energy gaps + lower frequency, outer orbitals -> smaller energy jumps + higher frequency.) Helium atoms would be more _convenient_ to work with, but its electron oscillations would measure time more coarsely - they would "tick slower", which leads to bigger "rounding errors" in measurement. For the most precision (the smallest "ticks"), you want a fairly heavy element/isotope, with at least one spot free in its outermost electron orbital - but not _so_ heavy that spontaneous atomic decay becomes a serious issue.
@@HaloInverse the time it takes a helium atom to expell a photon assuming the conditions are the same would be the same always the only problem is we don't have equipment precise enough if it were the definition of the second would be something like the time it take a helium atom to revert to it's ground state after being energized with x number of electron volts when the helium atom is suspended in a temperature of 273.5 degrees Kelvin multiplied by a certain factor, this would be the most precise as helium is stable and a simpler element with less elementary particles that could screw up calculations Edit I'm not talking about ticks I'm talking about time taken to undergo spontaneous emission
Whatever happened to the IC frequency standard around 2000 that was coming out then and was claimed to be 100 times more accurate then Rubidium clocks ? It think if was MEMs based and it was portable and cheap enough to be used commonly. I think they said about $6 to $10 for a 10^-15 standard ! More tech that disappeared like the 5D 300TB optical disc in 2012 ? Yet drones can store 1 MILLION TERABYTES a DAY for EACH DRONE somehow ! Can anyone explain that ? Any yes, I checked the transcript and it was 1 million TERABYTS per day or 365 Million TB per year, per drone. What stoage tech could handle that ? A 100,000 10TB drives RAID system a day maybe ? It was on a PBS show about drones talking about the Argus system so nobody can claim it is a rumor or theory.
just read a book about quantum loop gravity (by Marco Roveli). Quantum Loop Theory proposes something really cool that sounds pretty much like what you said. First, it argues that we can't measure time. Sounds weird, but all we are measuring is the amount of oscillations something does compared to the amount of oscillations some other thing does. For example you measure how much you lasted underwater counting the vibrations of the quartz in your stopwatch, never indicating a real time. Then, the theory of loop quantum comes into place: Time emerges from the mess of loops that create space. Time is not already there (actually it isn't in the equations of loop quantum theory) but is a result of the theory. So we could argue that time doesn't exist, following this theory (and that is just a variable that we invent upon the theory that happens to be a useful tool). Super interesting. Check it out.
This is incredibly interesting and awesome, but one observation I have as someone who knows NOTHING about what they are doing is... What affect on the experiment does the dust on the mirrors/lens' (that is clearly visible in a few shots) have on the outcome?
Wait what? Time is not constant!! Einstein's theory of relativity Schrodinger's cat and time dilation of all proven that time is not constant. Simplest way to even test this was already proven to be the humble cell phone and the GPS system on board. The GPS system is nothing but a giant cuckoo clock that is surrounding us up in space that keeps accurate time for us down here. But the problem is those GPS satellites are constantly two seconds ahead of the clocks on Earth due to the lack of gravity and the high speeds at which they travel. The closer you get to light speed or the closer you get to a high gravity well the slower time gets for you even though you don't notice the change but it's faster for everyone else the closer you get to these objects. The problem with these atomic clocks that I'm saying is that they're built to operate on the only known gravity well if we can actually access that is the Earth if we made the same clock on the surface of a larger body the clock would be noticeably slower due to the mass of the planet that it is on. I'm not saying that these experiments are useless time is a needed factor for equations in many scientific experiments but it is far from constant.
Time is relative and not constant, but I think you don't exactly understand how time dilation works. In YOUR frame of reference, time feels always the same. The only situation in which time varies is when you observe someone in a different frame of reference (or in a different gravitational potential), so if you bring this clock to a spaceship, crew members will see the same results as we see in earth. So these clocks are doing their job well. What you think is a problem is the fact that the signals that they send to earth might be time-distorted. That's true, but we can compute those changes with special and general relativity so there is no problem at all.
Cool technology though TBH when I heard that it “could redefine time” I was expecting something more than a more accurate atomic clock. Thought they discovered something new with it already. Still I’m sure it would be useful for some very very accurate experiments relating to time in the future.
Doesn't slowing the atom also affect the rime which is recorded? Plus it takes time for the signal from the reading of the atom to pass down the wires and reach the computer and so that again affects the outcome of the time shown right??
Ok maybe but why does everything that we know of seem to change under the inescapable guidance of entropy, which is a natural byproduct of what we call time? And the few subatomic particles that might theoretically transcend time are 1) theoretical and 2) still bound by and within time...sure, our measurements of time are constructs, but I challenge you to make a convincing argument that time itself is imaginary, a construct....
The way we perceive time is abstract or a construct, but everything is affected by time and aging. The same thing with weight, everything has mass but weight is determined by gravitational forces making it a construct.
@@kevinnoble1581 that analogy is a little inconsistent...weight isn't a construct, objects do have a weight within a gravitational field that is proportional to the strength of the field itself. Our measurement of weight could be called a construct, but weight is definitely a real thing...
Never heard of optical tweezers until i learned it was awarded the Nobel Peace Prize this year about a week ago. It's fascinating and i'm glad to see it being used in interesting ways, such as achieving more precise measurements of time!
I mean he is and is not right time itself is something you can not touch or go back in it will only continue into the future you can go forward just not back to do that its simply keeping the body in a state that prevents decay humans were never meant to be able to travel through time after all why would god let something like us do something that can so easily mess up history itself? But then again there are many theories on how time prevents that by duplicating, spliting or just plain ignoring what has been changed humans will just never be able to mess with it and that is for the best -w-
So they are making time HD. More FPS in our reality. Sounds like this could allow 5Dimension energies to come through, as multi-dimensional events require universal time which move in all directions. I approve.
I first got interested in this video since I'm working in this field. But yet, it grinds my gears, when the facts are poorly researched. Fortunately, Jun Ye tries to keep his explainations as simple but yet correct as possible, while the narrator seems to be off a few times, oversimplifying and mixing up facts. Sure, physics is a rather hard topic. But it wouldn't be a big deal to get the video fact-checked by people working in this field. E.g. when I heard your explaination of the caesium fountain-clock (NIST-F2), I almost had to vomit: "Microwave lasers beams push the atom into a ball". Seriously. Is it a laser now? Or a microwave? It can't be both. What actually happens is, that atoms get laser cooled in a magneto-optical-trap (and further cooled in a mollasses), accelerated vertically where it passes a microwave cavity in order to get excicted via the Ramsey-scheme. Somehow this became "microwave-laser".....
I think Einstein had it wrong and that time is constant, not the speed of light. I think dark matter density is the limiting factor to the speed of light and that gravity and dark matter density bend/pull on light (and everything else), not 'spacetime'. I think quartz pulses and atomic clocks are induced to operate more slowly when traveling at high velocities in space, slowing our measurements of time, not time itself.
There isn't such a thing as time. Only changes. Here all their doing is measuring an atom pulsating. Time must have been invented by our ancestors probably by noticing the ever cycling changes of the moon and seasons which in turn would probably helped them to forecast when food would be available. Aside from that time doesn't exist it's only events, which are changes from one state to another of something.
