If you are aware of an interesting new academic paper (that has been published in a peer-reviewed journal or has appeared on the arXiv), a conference talk (at an official professional scientific meeting), an external blog post (by a professional scientist) or a news item (in the mainstream news media), which you think might make an interesting topic for an FQXi blog post, then please contact us at forums@fqxi.org with a link to the original source and a sentence about why you think that the work is worthy of discussion. Please note that we receive many such suggestions and while we endeavour to respond to them, we may not be able to reply to all suggestions.
Please also note that we do not accept unsolicited posts and we cannot review, or open new threads for, unsolicited articles or papers. Requests to review or post such materials will not be answered. If you have your own novel physics theory or model, which you would like to post for further discussion among then FQXi community, then please add them directly to the "Alternative Models of Reality" thread, or to the "Alternative Models of Cosmology" thread. Thank you.
Please also note that we do not accept unsolicited posts and we cannot review, or open new threads for, unsolicited articles or papers. Requests to review or post such materials will not be answered. If you have your own novel physics theory or model, which you would like to post for further discussion among then FQXi community, then please add them directly to the "Alternative Models of Reality" thread, or to the "Alternative Models of Cosmology" thread. Thank you.
Forum Home
Introduction
Terms of Use
RSS feed | RSS help
Introduction
Terms of Use
Posts by the blogger are highlighted in orange; posts by FQXi Members are highlighted in blue.
By using the FQXi Forum, you acknowledge reading and agree to abide by the Terms of Use RSS feed | RSS help
RECENT POSTS IN THIS TOPIC
Jason Wolfe: on 7/3/20 at 4:50am UTC, wrote Have you considered that the spacetime continuum is made of a near infinite...
Jason Wolfe: on 7/3/20 at 1:04am UTC, wrote If we're talking about the physical universe, than I think you have to talk...
Héctor Gianni: on 7/1/20 at 22:18pm UTC, wrote Dear Lorenzo Maccone, John R. Cox, Jim George Sowdon: ...
Jim Snowdon: on 6/30/20 at 12:21pm UTC, wrote Hi Hector, May I invite you to read my most recent postings,...
John Cox: on 6/30/20 at 1:18am UTC, wrote Hector, your points are well taken. However I think it important to also...
Héctor Gianni: on 6/29/20 at 22:20pm UTC, wrote To whom is interested The experimental meaning of "the so called time" is...
Zeeya Merali: on 6/23/20 at 18:37pm UTC, wrote Hi there, I didn't realise it had been closed! It's now re-opened.
Vesuvius Now: on 6/23/20 at 18:24pm UTC, wrote Would it be possible to re-open the "The Nature of Time" forum? Research on...
RECENT FORUM POSTS
Steve Dufourny: "E=m(c²+Xl²)+Y=2 mc² the gravitation originates from the energies..." in The Noise of Gravitons
Cabal Owen: "I have learned this while my research - What are the types of BCI’s ..." in Expanding the Mind...
Georgina Woodward: "Compare: "Wild', existentially free particle, unmeasured, unperturbed, in..." in Quantum Physics and the...
Georgina Woodward: "1. The 'magic rabbit' does not come into being, upon the photo being seen...." in Quantum Physics and the...
Deserdi Chapas: "Report on ongoing Holographic Physics work at deserdi.xyz As humanity has..." in Alternative Models of...
umair zaheer: "Travel is the movement of people between distant geographical locations...." in Anatomy of spacetime and...
robin 435: "rsvsfascxseaczcfadv" in Anatomy of spacetime and...
David Vognar: "Electron Doping? by David Vognar I think it helps to visualize physics so..." in The Present State of...
RECENT ARTICLES
click titles to read articles
The Entropic Price of Building the Perfect Clock: Q&A with Natalia Ares
Experiments investigating the thermodynamics of clocks can teach us about the origin of time's arrow.
Schrödinger’s A.I. Could Test the Foundations of Reality
Physicists lay out blueprints for running a 'Wigner's Friend' experiment using an artificial intelligence, built on a quantum computer, as an 'observer.'
Expanding the Mind (Literally): Q&A with Karim Jerbi and Jordan O'Byrne
Using a brain-computer interface to create a consciousness 'add-on' to help test Integrated Information Theory.
Quanthoven's Fifth
A quantum computer composes chart-topping music, programmed by physicists striving to understand consciousness.
The Math of Consciousness: Q&A with Kobi Kremnitzer
A meditating mathematician is developing a theory of conscious experience to help understand the boundary between the quantum and classical world.
Jason Wolfe: on 7/3/20 at 4:50am UTC, wrote Have you considered that the spacetime continuum is made of a near infinite...
Jason Wolfe: on 7/3/20 at 1:04am UTC, wrote If we're talking about the physical universe, than I think you have to talk...
Héctor Gianni: on 7/1/20 at 22:18pm UTC, wrote Dear Lorenzo Maccone, John R. Cox, Jim George Sowdon: ...
Jim Snowdon: on 6/30/20 at 12:21pm UTC, wrote Hi Hector, May I invite you to read my most recent postings,...
John Cox: on 6/30/20 at 1:18am UTC, wrote Hector, your points are well taken. However I think it important to also...
Héctor Gianni: on 6/29/20 at 22:20pm UTC, wrote To whom is interested The experimental meaning of "the so called time" is...
Zeeya Merali: on 6/23/20 at 18:37pm UTC, wrote Hi there, I didn't realise it had been closed! It's now re-opened.
Vesuvius Now: on 6/23/20 at 18:24pm UTC, wrote Would it be possible to re-open the "The Nature of Time" forum? Research on...
RECENT FORUM POSTS
Steve Dufourny: "E=m(c²+Xl²)+Y=2 mc² the gravitation originates from the energies..." in The Noise of Gravitons
Cabal Owen: "I have learned this while my research - What are the types of BCI’s ..." in Expanding the Mind...
Georgina Woodward: "Compare: "Wild', existentially free particle, unmeasured, unperturbed, in..." in Quantum Physics and the...
Georgina Woodward: "1. The 'magic rabbit' does not come into being, upon the photo being seen...." in Quantum Physics and the...
Deserdi Chapas: "Report on ongoing Holographic Physics work at deserdi.xyz As humanity has..." in Alternative Models of...
umair zaheer: "Travel is the movement of people between distant geographical locations...." in Anatomy of spacetime and...
robin 435: "rsvsfascxseaczcfadv" in Anatomy of spacetime and...
David Vognar: "Electron Doping? by David Vognar I think it helps to visualize physics so..." in The Present State of...
RECENT ARTICLES
click titles to read articles
The Entropic Price of Building the Perfect Clock: Q&A with Natalia Ares
Experiments investigating the thermodynamics of clocks can teach us about the origin of time's arrow.
Schrödinger’s A.I. Could Test the Foundations of Reality
Physicists lay out blueprints for running a 'Wigner's Friend' experiment using an artificial intelligence, built on a quantum computer, as an 'observer.'
Expanding the Mind (Literally): Q&A with Karim Jerbi and Jordan O'Byrne
Using a brain-computer interface to create a consciousness 'add-on' to help test Integrated Information Theory.
Quanthoven's Fifth
A quantum computer composes chart-topping music, programmed by physicists striving to understand consciousness.
The Math of Consciousness: Q&A with Kobi Kremnitzer
A meditating mathematician is developing a theory of conscious experience to help understand the boundary between the quantum and classical world.
FQXi BLOGS
December 9, 2022
FQXi's Lorenzo Maccone delves into the one of the deepest question in philosophy and discusses what modern physics can tell us about the nature of time. This introductory lecture discusses relativity, time travel, and quantum gravity.
Keywords: INSPYRE schools time quantum relativity timetravel quantumgravity wheelerdewitt
This forum thread is open to the public.
Keywords: INSPYRE schools time quantum relativity timetravel quantumgravity wheelerdewitt
This forum thread is open to the public.
Would it be possible to re-open the "The Nature of Time" forum? Research on time has not stopped and the forum could still be useful.
report post as inappropriate
To whom is interested
The experimental meaning of "the so called time" is "movement".
Time is a measuring system created involuntarily by pre-historic man, and has no physical existence.They had not other way to predict hunting season.Antropologist said that man use Time since 25. to 30.000 years ago.
"Movement" is a physical property of every physical existing thing, that's why is everywhere and afects everything.The twin paradox only posible explanation: Man metabolism imply chemical conbinations which imply physical "movements" those movements would be slower for the astronaut twin who is in the spaceship at great speed respect his twin on land; the speed inertia would make a slower metabolic life for the astronaut living slower and less than his twin on land who would be older than the astronaut is; the twin on land lived more. Héctor Daniel Gianni
report post as inappropriate
The experimental meaning of "the so called time" is "movement".
Time is a measuring system created involuntarily by pre-historic man, and has no physical existence.They had not other way to predict hunting season.Antropologist said that man use Time since 25. to 30.000 years ago.
"Movement" is a physical property of every physical existing thing, that's why is everywhere and afects everything.The twin paradox only posible explanation: Man metabolism imply chemical conbinations which imply physical "movements" those movements would be slower for the astronaut twin who is in the spaceship at great speed respect his twin on land; the speed inertia would make a slower metabolic life for the astronaut living slower and less than his twin on land who would be older than the astronaut is; the twin on land lived more. Héctor Daniel Gianni
Hector,
your points are well taken. However I think it important to also recognize that 'blocktime' itself ignores the question of 'speed of time', such that the universe is commonly treated as existing at a common rate of time without actually stating so. And Lorentz points toward the fabled 'hidden parameter', length contraction is only expressed along one dimension and there is no accepted postulate which relates density variance as an inverse of velocity. Yet even in its infancy Relativity can account for the seemingly paradoxical behavior of radio-isotopes surviving billions of years of interstellar space in the extremely low gravitational potential at which non-relativistic theorizing would require decay rates to accelerate.
I like to think that we haven't yet scratched the surface of reality. If this topic catches on, I'm certain only that we will all end up thoroughly 'scratched'. best wishes jrc
this post has been edited by the author since its original submission
report post as inappropriate
your points are well taken. However I think it important to also recognize that 'blocktime' itself ignores the question of 'speed of time', such that the universe is commonly treated as existing at a common rate of time without actually stating so. And Lorentz points toward the fabled 'hidden parameter', length contraction is only expressed along one dimension and there is no accepted postulate which relates density variance as an inverse of velocity. Yet even in its infancy Relativity can account for the seemingly paradoxical behavior of radio-isotopes surviving billions of years of interstellar space in the extremely low gravitational potential at which non-relativistic theorizing would require decay rates to accelerate.
I like to think that we haven't yet scratched the surface of reality. If this topic catches on, I'm certain only that we will all end up thoroughly 'scratched'. best wishes jrc
report post as inappropriate
Hi Hector,
May I invite you to read my most recent postings, which are in the `Nature of Time` forum.
A convenient link to it is in Zeeya Merali`s posting, which is located immediately above your own posting.
report post as inappropriate
May I invite you to read my most recent postings, which are in the `Nature of Time` forum.
A convenient link to it is in Zeeya Merali`s posting, which is located immediately above your own posting.
Dear Lorenzo Maccone, John R. Cox, Jim George Sowdon:
If you really want to know now and forever What is Time?, I don't think you regret doing it, read my collaboration in the current FQXi contest: “No knowing Time definition and experimental meaning, Force physicists to theories creation, that make Physics Undecidable, Incomputable and Unpredictable, by Héctor Daniel Gianni.
report post as inappropriate
If you really want to know now and forever What is Time?, I don't think you regret doing it, read my collaboration in the current FQXi contest: “No knowing Time definition and experimental meaning, Force physicists to theories creation, that make Physics Undecidable, Incomputable and Unpredictable, by Héctor Daniel Gianni.
If we're talking about the physical universe, than I think you have to talk about time and space together; at least that's what special relativity tells us. I never read any discussions about why the speed of light is invariant for all observers. But because it is, effects like time dilation and length contraction are proof that there is no single clock or absolute ruler that governs the universe.
report post as inappropriate
Have you considered that the spacetime continuum is made of a near infinite number of quanta "gravitons", all of which have a built in clock and measuring stick.
report post as inappropriate
Login or create account to post reply or comment.