Search FQXi

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 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.

Forum Home
Terms of Use

Order posts by:
 chronological order
 most recent first

Posts by the author 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

Schatzie Dudee: on 9/12/14 at 19:03pm UTC, wrote I rated your video in July - I only wish I could make it a screesaver! So...

Marc Séguin: on 9/6/14 at 22:10pm UTC, wrote I was the author of the previous "Anonymous" comment.

Anonymous: on 9/6/14 at 20:08pm UTC, wrote Andrej, Beautiful and mesmerizing video! Your evolving shape reminded me...

Andrej Rehak: on 7/3/14 at 15:30pm UTC, wrote Video Image Video URL ...


Kevin Pryor: "By purpose, I meant a voluntary free will act you chose to achieve a goal,..." in More on agency from the...

Lorraine Ford: "Kevin, If people have no power over outcomes, then they cannot have..." in More on agency from the...

Georgina Woodward: "BY "seen things" I mean observation products ( with the appearance of..." in First Things First: The...

Joe Fisher: "Today’s Closer To Truth Facebook page contained this peculiar piece of..." in First Things First: The...

Anonymous: "The confrontation between different viewpoints is always an interesting..." in Can Time Be Saved From...

emma jio: "in your printer have any issues like printing issues or anything which..." in New Nuclear "Magic...

Steve Dufourny: "I must insist on a global crisis inside the sciences Community. It is due..." in Alternative Models of...

Georgina Woodward: "Steve, first to accept the quantum superposition, it is necessary to accept..." in Schrödinger’s Zombie:...

click titles to read articles

First Things First: The Physics of Causality
Why do we remember the past and not the future? Untangling the connections between cause and effect, choice, and entropy.

Can Time Be Saved From Physics?
Philosophers, physicists and neuroscientists discuss how our sense of time’s flow might arise through our interactions with external stimuli—despite suggestions from Einstein's relativity that our perception of the passage of time is an illusion.

A devilish new framework of thermodynamics that focuses on how we observe information could help illuminate our understanding of probability and rewrite quantum theory.

Gravity's Residue
An unusual approach to unifying the laws of physics could solve Hawking's black-hole information paradox—and its predicted gravitational "memory effect" could be picked up by LIGO.

Could Mind Forge the Universe?
Objective reality, and the laws of physics themselves, emerge from our observations, according to a new framework that turns what we think of as fundamental on its head.

November 13, 2019

CATEGORY: Show Me the Physics! Video Contest (2014) [back]
TOPIC: the geometry of spacetime by Andrej Rehak [refresh]
Bookmark and Share
Login or create account to post reply or comment.

Andrej Rehak wrote on Jul. 3, 2014 @ 15:30 GMT
Video Image

Video URL

Video Description

In presented animated geometry of abyss and source, independent of scale, each unique radius of present tends to equilibrium absorbing its future and transmitting its past. Hence, the laws of motion arise. The cause and the consequence of that dynamics is constantly accelerating expansion of the system. In any dynamic position of that growing vortex, dilated space over dilated time measures linear flow of time, constant acceleration (linear propagation of space), and constant referent speed. From referent one, the unique and dynamic now and here, front at which the beginning-less past and the endless future meet, reflection point where information transforms to memory, memory to information, velocity to its polarity - mass, mass to its polarity - velocity... the system measures constant radius. Thus, the system exists. Mathematical description of presented geometry can be red at: The background sound is a clip from the soundtrack “Symphonies of planets” recorded by NASA’s Voyager.

Video Creator Bio

Andrej Rehak finished High School for Mathematics and Informatics and graduated sculpture on Academy of Fine Arts in Zagreb. He does computer animation and searches for patterns in motions and shapes.

Bookmark and Share

Anonymous wrote on Sep. 6, 2014 @ 20:08 GMT

Beautiful and mesmerizing video! Your evolving shape reminded me of the past and future light cones of relativity, and in the purple central space with orbiting planets, I could imagine the plane of the present... If there was a special category for art/physics synergy in this contest, your video should be in first place!


P.S. If you have a chance to view my trilogy of videos, "This Is Physics", and leave comments and ratings, it would be quite appreciated! In part 1 of the trilogy, I present the evolution from the Ptolemaic system to the Copernican one... although in a much less artistic way than that you did in one of your other entries in this contest!

Bookmark and Share

Member Marc Séguin replied on Sep. 6, 2014 @ 22:10 GMT
I was the author of the previous "Anonymous" comment.

Bookmark and Share

Schatzie Dudee wrote on Sep. 12, 2014 @ 19:03 GMT
I rated your video in July - I only wish I could make it a screesaver! So beautiful.

If you get a moment, can you please rate our 2 short videos? We would be very grateful:


Thanks so much,

Schatzie Dudee and kids

Bookmark and Share

Login or create account to post reply or comment.

Please enter your e-mail address:
Note: Joining the FQXi mailing list does not give you a login account or constitute membership in the organization.