Difference between revisions of "Time"
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<b>IT'S NOT REAL! Physicists PROVE Time Does NOT Exist | <b>IT'S NOT REAL! Physicists PROVE Time Does NOT Exist | ||
| − | </b><br>We, humans, are fascinated with the idea of traveling back or ahead in time. Time Travel Machines and Devices have been a staple for a lot of science fiction and even fantasy stories catering to our desire to either change something in the past to make our lives better or just skip ahead in time to find out if life gets better on its own in the future. | + | </b><br>We, humans, are fascinated with the idea of traveling back or ahead in time. Time Travel Machines and Devices have been a staple for a lot of science fiction and even fantasy stories catering to our desire to either change something in the past to make our lives better or just skip ahead in time to find out if life gets better on its own in the future. Ever wonder why we may never develop a Time Machine? Because Time probably doesn’t even EXIST! Welcome to Factnomenal, and today let’s find out why some physicists insist that TIME exists only in our heads. |
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| − | Ever wonder why we may never develop a Time Machine? Because Time probably doesn’t even EXIST! | + | |}<!-- B --> |
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| − | Welcome to Factnomenal, and today let’s find out why some physicists insist that TIME exists only in our heads. | + | | valign="top" | |
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| + | <b>This Is Why Time Might Not Actually Exist | ||
| + | </b><br>Quantum Entanglement May Reveal a Reality We Can't Handle | ||
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| + | <b>The fundamentals of space-time: Part 1 - Andrew Pontzen and Tom Whyntie | ||
| + | </b><br>Space is where things happen. Time is when things happen. And sometimes, in order to really look at the universe, you need to take those two concepts and mash them together. In this first lesson of a three-part series on space-time, hilarious hosts Andrew Pontzen and Tom Whyntie go through the basics of space and time individually, and use a flip book to illustrate how we can begin to look at them together. Lesson by Andrew Pontzen and Tom Whyntie, animation by Giant Animation Studios. | ||
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== <span id="Longitude"></span>Longitude == | == <span id="Longitude"></span>Longitude == | ||
Revision as of 21:03, 4 April 2023
YouTube ... Quora ...Google search ...Google News ...Bing News
- Cybersecurity: National Institute of Standards and Technology (NIST) & U.S. Department of Homeland Security (DHS)
- Time and Frequency Division, Physical Measurement Laboratory, National Institute of Standards and Technology (NIST)
- National Timing Centre ... Assured Time and Frequency for the UK
- Time ...Coordinated Universal Time UTC ... Clock ...Timekeeping | Wikipedia
- The Very Long and Fascinating History of Clocks | Christopher McFadden - Interesting Engineering
- What Is a Leap Second? | Konstantin Bikos and Anne Buckle - timeanddate.com
- Atomic clocks ...Tide Clock | Amazon
- Clock synchronization
- Time: Do the past, present, and future exist all at once? | BigThink (video) ... astrophysicist Michelle Thaller, science educator Bill Nye, author James Gleick, and neuroscientist Dean Buonomano discuss how the human brain perceives of the passage of time, the idea in theoretical physics of time as a fourth dimension, and the theory that space and time are interwoven.
- Cybersecurity
- Crown Sterling ... changing the face of digital security with its non-integer-based algorithms that leverage time, AI and irrational numbers.
- Quantum cryptography ... the infosec industry looks to quantum cryptography and quantum key distribution (QKD)
- Time Series
- Models
- Attention Mechanism ...Transformer Model ...Generative Pre-trained Transformer (GPT)
- Sequence to Sequence (Seq2Seq)
- End-to-End Speech
- Neural Turing Machine
- Recurrent Neural Network (RNN)
- (Tree) Recursive Neural (Tensor) Network (RNTN)
- Temporal Difference (TD) Learning
- Time Series Forecasting - Statistical
- Time Series Forecasting - Deep Learning
- Spatial-Temporal Dynamic Network (STDN)
- What’s a Time Crystal? | Charles Q. Choi - IEEE Spectrum ... And how do Google researchers use quantum computers to make them? ... quantum system of many particles that organize themselves into a periodic pattern of motion—periodic in time rather than in space—that persists in perpetuity.
- This Mirror Reverses How Light Travels in Time There are already applications in wireless, radar, and optical-computing | Charles Q. Choi - IEEE Spectrum ... There are already applications in wireless, radar, and optical-computing ... These applications often reverse the order of signals to help process them.
Whenever we have developed better clocks, we’ve learned something new about the world.
- Alexander Smith New Time Dilation Phenomenon Revealed: Timekeeping Theory Combines Quantum Clocks and Einstein’s Relativity - Dartmouth College
The Earth's rotation is so accurate it varies only in milliseconds ...do you feel the Earth rotation slowing down?
DARPA Making Progress on Miniaturized Atomic Clocks for Future PNT Applications | US Defense Advanced Research Projects Agency (DARPA)
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Contents
- 1 Precision Time Protocol (PTP)
- 2 Positioning, Navigation and Timing (PNT)
- 3 Time & Music
Precision Time Protocol (PTP)
YouTube search... ...Google search
- Precision Time Protocol PTP-1588 | IEEE ...High precision clock synchronization that computes latency and offset
- How Precision Time Protocol is being deployed at Meta | Oleg Obleukhov & Ahmad Byagowi - CONNECTIVITY, NETWORKING & TRAFFIC, OPEN SOURCE, PRODUCTION ENGINEERING, UNCATEGORIZED, WEB
- PTP IEEE 1588v2 | Juniper Networks ...Time Management Administration Guide
The Precision Time Protocol (PTP) is a protocol used to synchronize clocks throughout a computer network. On a local area network, it achieves clock accuracy in the sub-microsecond range, making it suitable for measurement and control systems.[1] PTP is currently employed to synchronize financial transactions, mobile phone tower transmissions, sub-sea acoustic arrays, and networks that require precise timing but lack access to satellite navigation signals.Wikipedia
Overall, its structure is similar to NTP in that there are different levels within it and GPS satellites can serve as its time source. However, the major difference between Network Time Protocol (NTP) and PTP is that PTP is accurate to microseconds, meaning that it is more exact than NTP
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YouTube search... ...Google search
- Case Studies
- Autonomous Drones
- Deepmind teaches AI to follow navigational directions like humans | Tristan Greene
- History of Navigation | Wikipedia
- Department of Homeland Security (DHS) Science and Technology (S&T) Positioning, Navigation, and Timing (PNT) Program
- Navigation Aids | Department of Transportation, Federal Aviation Administration
- VN-300 | Vectornav ...miniature, high-performance Dual Antenna Global Navigation Satellite Systems (GNSS)-Aided Inertial Navigation System (INS) that combines micro-electromechanical systems (MEMS) inertial sensors, two high-sensitivity GNSS receivers, and advanced Kalman filtering algorithms to provide optimal estimates of position, velocity, and orientation.
Navigation is a field of study that focuses on the process of monitoring and controlling the movement of a craft or vehicle from one place to another.[1] The field of navigation includes four general categories: land navigation, marine navigation, aeronautic navigation, and space navigation. Navigation | Wikipedia
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Global Positioning System (GPS)
YouTube search... ...Google search
- Man-made (artificial) Satellites
- GPS has been copied by Russia's GLONASS, Europe’s Galileo, China's BeiDou, India’s IRNSS, and Japan’s QZSS
- Artificial intelligence in GPS navigation systems | Jeffrey L. Duffany
- RoadTagger: GPS system upgrade utilizes AI to make sure you're in the right lane | David Nield - New Atlas ...Artificial intelligence to update digital maps and improve GPS navigation | Amit Malewar - InceptiveMind
- GPS.gov ...Timing
- Inside GNSS ...Global Navigation Satellite Systems
- Navstar | Space.com ...is a network of U.S. satellites that provide GPS services
- SpaceX launches third-generation GPS navigation satellite | CBS News ...GPS-3 satellite — the fourth in a series of more powerful third-generation navigation stations built by Lockheed Martin — was expected to be deployed about a 90 minutes after liftoff. Assuming tests and checkout go well, it will join a globe-spanning constellation of 31 GPS satellites.
- Air Force asks three U.S. contractors to develop miniature ASIC technology for next-gen GPS receivers | John Keller - Military & Aerospace Electronics ...small low-power-consumption GPS enabling technologies to include a next-generation ASIC for secure GPS land navigation.
- China Launches Beidou, Its Own Version of GPS | Andrew Jones - IEEE Spectrum ...China places the final Beidou navigation system satellite into orbit
- Big News For ISRO! Indian Navigation System (IRNSS) Gets Approval By IMP For Global Operations | Smriti Chaudhary - The EurAsuan Times
GPS receivers that use the L5 band can pinpoint to within 30 centimeters or 11.8 inches. The GPS concept is based on time and the known position of GPS specialized satellites. The satellites carry very stable atomic clocks that are synchronized with one another and with the ground clocks. Any drift from time maintained on the ground is corrected daily. In the same manner, the satellite locations are known with great precision. GPS receivers have clocks as well, but they are less stable and less precise. Each GPS satellite continuously transmits a radio signal containing the current time and data about its position. Since the speed of radio waves is constant and independent of the satellite speed, the time delay between when the satellite transmits a signal and the receiver receives it is proportional to the distance from the satellite to the receiver. A GPS receiver monitors multiple satellites and solves equations to determine the precise position of the receiver and its deviation from true time. At a minimum, four satellites must be in view of the receiver for it to compute four unknown quantities (three position coordinates and clock deviation from satellite time). Global Positioning System | Wikipedia
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Deep-Space Positioning System (DPS)
YouTube search... ...Google search
- NASA is Making An AI-Based GPS For Space | Kristin Houser
- Frontier Development Lab (FDL) ...Artificial Intelligence Research for Space Science, Exploration & All Humankind
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Jamming and Spoofing
YouTube search... ...Google search
- The Resilient Navigation and Timing Foundation
- Department of Homeland Security (DHS) Science and Technology (S&T) Resilient Positioning, Navigation, and Timing (PNT) Conformance Framework
- The Space Force: A Conversation With United States Secretary Of The Air Force Barbara Barrett | Steve Forbes - Forbes ... We are vulnerable. For example, the U.S. and the global economy are totally dependent on satellites, most especially the GPS, which is operated by the Space Force.
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