Support this channel on Patreon to help me make this a full time job: https://www.patreon.com/whatdamath (Unreleased videos, extra footage, DMs, no ads) Alternatively, PayPal donations can be sent here: http://paypal.me/whatdamath Get a Wonderful Person Tee: https://teespring.com/stores/whatdamath More cool designs are on Amazon: https://amzn.to/3QFIrFX Hello and welcome! My name is Anton and in this video, we will talk about the new way to keep track of time - nuclear clocks Links: https://www.nature.com/articles/s41586-019-1533-4 https://arxiv.org/pdf/2606.08870 https://arxiv.org/pdf/2606.04997 #nuclearclock #atomicclocks #science 0:00 First nuclear clock ever 1:05 Why do we need a new clock? 1:45 Problems with the atomic clocks 2:30 Nuclear clock benefits and challenges 4:10 Why Thorium 229 is so important and initial breakthroughs 6:28 How this was done and the achievement from the new study 8:50 What these studies achieved 9:30 Implications and first tests 11:00 Challenges remain 11:30 What will change in science and conclusions Enjoy and please subscribe Bitcoin/Ethereum to spare? Donate them here to help this channel grow! bc1qnkl3nk0zt7w0xzrgur9pnkcduj7a3xxllcn7d4 or ETH: 0x60f088B10b03115405d313f964BeA93eF0Bd3DbF The hardware used to record these videos: New Camera: https://amzn.to/4pCVINS CPU: https://amzn.to/4qXIaxC Video Card: https://amzn.to/2M1W26C Motherboard: https://amzn.to/2JYGiQQ RAM: https://amzn.to/2Mwy2t4 PSU: https://amzn.to/2LZcrIH Case: https://amzn.to/2MwJZz4 Microphone: https://amzn.to/2t5jTv0 Mixer: https://amzn.to/2JOL0oF Recording and Editing: https://amzn.to/2LX6uvU Some of the above are affiliate links, meaning I would get a (very small) percentage of the price paid. Thank you to all Patreon supporters of this channel Special thanks also goes to all the wonderful supporters of the channel through YouTube Memberships Credit: Mark Garlick www.markgarlick.com LarsvdW CC BY SA 4.0 https://en.wikipedia.org/wiki/Nuclear_clock#/media/File:Nuclear_clock_concept.png Licenses used: https://creativecommons.org/licenses/by/4.0/ and relevant Creative Commons licenses
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It's about time
WHAT A TIME TO BE ALIVE
Imagine trying to explain to a medival pesant, why we ever would need a clock more precise then the towns clocktower.
More precise clocks means more sensitive interferometry, hopefully we can detect smaller gravitational waves with this better resolution
Anyone else wondering how electronics can actually count laser fluctuations fast enough to track this number of oscillation per second?
It’s 12 o’quark in this era
This clock is so accurate, when someone parks a heavy vehicle outside, the time dilation due to the changed gravity is enough to make it less accurate.
finaly...never late for a appointment ever again...pfiew
Great! We’re going to get written up for being 7 Picoseconds late!
The Trains still won't run on time
This will almost certainly lead to Nobel prizes. Smaller ticks means the experimentalists will be able to prove things that were previously conjectures.
Imagine a phased clock array able to see gravitational signatures of objects
Very special thanks to theoretical physicists, physics programmers, physics professors, nuclear scientists, and those companies that help talented people measure our world! Gratitude!
1:10 does it ignore the laws of daylight savings?
Philomena Cunk is about to do another video on what is clocks.
It's about time ....
This video discussed the scientific applications of a stable high-precision, but as an engineer, I need to mention the practical applications. These clocks aren't affected by most things, but they are affected by gravity and the distribution of nearby masses. They run faster or slower depending on the amount of mass in their vicinity. Create a large array of said clocks, and now you have a way of measuring and mapping the mass distribution of anything in the nearby area. That has all sorts of remote sensing applications. The video mentions using them to probe the Earth's core, but they could just as easily be used to search for anything underground - minerals, tunnels, faultlines, etc. But to give a feel for the potential of this, let's consider just one example in detail. I have no idea if these are sensitive enough, but with stable clocks of sufficient precision, it should be possible to create the ultimate radar. You have a vast array of such clocks scattered across the countryside. When a plane flies through that region, it slightly slows every clock it passes. Sure, passing trucks probably have more effect on each individual clock. But combine the signals from thousands of such clocks with a whole lot of machine learning to specifically select for the signals of aircraft (appropriate mass, elevation, velocity), then you now have the ultimate radar. Let's call it "gravitational radar." Such a thing would be revolutionary. Gravitational radar would be completely immune to weather. You might have to factor the mass of clouds into your sorting algorithm, but they wouldn't block the signal. There's no hiding mass. There's no shielding against gravity. It would be completely impervious to any stealth measures. No special coating or hull shape will affect it. And it even neutralizes normal attempts at jamming or destroying radars. There's no jamming or spoofing gravity. And the entire military tactic of starting an air campaign by destroying the enemy's radar would be completely defunct. A gravity radar has no big expensive central dish to destroy. Your "radar" is a hundred thousand tiny cheap metal boxes buried in the ground in locations scattered across your country. Even the processing is performed via vast cloud computing. There simply is no central radar asset to destroy. It would be impossible to destroy such a radar system short of completely flattening the entire country. For civilian applications, this means a radar that never need worry about the weather. For military, it means that as long as you have a country, you will still have radar. Again, I don't know if these specific clocks would be cheap and precise enough to allow this specific application. But there are a lot of very interesting things you can do if you assume clocks of arbitrary precision. Just like how the GPS system is only possible because of atomic clocks, nuclear clocks might open up their own previously impossible technologies. As you note, they would have many scientific applications, but there are a lot of very interesting potential technologies that could be unlocked in the future if clocks get precise enough. Anything that can be boiled down to measuring the positions and movements of masses could be affected. And these technologies would all require potentially decades or longer to develop. I make a gravity radar sound easy, but even with clocks of sufficient precision, going from conceptual model to working national-scale defense grid would be a Herculean undertaking. PS. I really had to resist naming "gravity radar" as simply "gadar."
It can be used in mining and navigation too. It's actually common, a mini fridge sized device on wheels that you can drag around to detect gravity changes. A change in density indicates a minereal deposit. For navigation, you need to map out Earth's gravity and fly in a straight line until you see fluctuations which can be mapped to a unique signature.
1 caterpillar 2 caterpillar 3 caterpillar has always worked for me 😊
Wow! They achieved this in a timely manner :)