Free Republic
Browse · Search
General/Chat
Topics · Post Article

Skip to comments.

Paradox-Free Time Travel is Mathematically Possible: Study
Sci-news ^ | 09/25/2020

Posted on 09/25/2020 9:15:31 PM PDT by BenLurkin

“Classical dynamics says if you know the state of a system at a particular time, this can tell us the entire history of the system,” said Germain Tobar, a student in the School of Mathematics and Physics at the University of Queensland.

“This has a wide range of applications, from allowing us to send rockets to other planets and modeling how fluids flow.”

“For example, if I know the current position and velocity of an object falling under the force of gravity, I can calculate where it will be at any time.”

“However, Einstein’s theory of general relativity predicts the existence of time loops or time travel — where an event can be both in the past and future of itself — theoretically turning the study of dynamics on its head.”

A unified theory that could reconcile both traditional dynamics and Einstein’s theory of relativity is the holy grail of physics.

“But the current science says both theories cannot both be true,” Tobar said.

“As physicists, we want to understand the Universe’s most basic, underlying laws and for years I’ve puzzled on how the science of dynamics can square with Einstein’s predictions.”

“I wondered: Is time travel mathematically possible?”

Tobar and his colleague, Dr. Fabio Costa from the Centre for Engineered Quantum Systems in the School of Mathematics and Physics at the University of Queensland, found a way to ‘square the numbers’ and their calculations could have fascinating consequences for science.

(Excerpt) Read more at sci-news.com ...


TOPICS: Miscellaneous
KEYWORDS: paradox; stringtheory; timetravel
Navigation: use the links below to view more comments.
first 1-2021-4041-6061-8081-84 next last

1 posted on 09/25/2020 9:15:31 PM PDT by BenLurkin
[ Post Reply | Private Reply | View Replies]

To: SunkenCiv

2 posted on 09/25/2020 9:15:57 PM PDT by BenLurkin (The above is not a statement of fact. It is either opinion or satire. Or both.)
[ Post Reply | Private Reply | To 1 | View Replies]

To: BenLurkin

So is free Bubble Up and rainbow stew.


3 posted on 09/25/2020 9:20:06 PM PDT by attiladhun2
[ Post Reply | Private Reply | To 1 | View Replies]

To: BenLurkin

“Marty, Marty! Let’s go back in time to Nov 2016 and watch Hillary lose again!”


4 posted on 09/25/2020 9:24:56 PM PDT by Extremely Extreme Extremist (Trust the plan of the 17th letter of the English alphabet!)
[ Post Reply | Private Reply | To 1 | View Replies]

To: Extremely Extreme Extremist

“ “Marty, Marty! Let’s go back in time to Nov 2016 and watch Hillary lose again!””

Now that would be a “Groundhog Day” scenario I would not mind exeriencing.


5 posted on 09/25/2020 9:28:52 PM PDT by TonyM (Score Event)
[ Post Reply | Private Reply | To 4 | View Replies]

To: BenLurkin

“I want to hear the scream of the Butterfly Effect”

/No Mojo Risin


6 posted on 09/25/2020 9:30:13 PM PDT by Salamander (The left screams out in pain as they stab you.)
[ Post Reply | Private Reply | To 2 | View Replies]

To: BenLurkin

7 posted on 09/25/2020 9:31:49 PM PDT by Veggie Todd (Religion. It's like a History class. Without the facts.)
[ Post Reply | Private Reply | To 1 | View Replies]

To: Extremely Extreme Extremist
“Marty, Marty! Let’s go back in time to Nov 2016 and watch Hillary lose again!”

Even better, go back a few days early and bet all your liberal friends that Trump will win. Then relive election night by not only rejoicing all over again at their tears, but make them pay you for the experience as well!

8 posted on 09/25/2020 9:32:32 PM PDT by noiseman (The only thing necessary for the triumph of evil is for good men to do nothing.`)
[ Post Reply | Private Reply | To 4 | View Replies]

To: Extremely Extreme Extremist

I’d prefer Nov 2008...IF I could somehow perturb Obamao.


9 posted on 09/25/2020 9:33:07 PM PDT by ProtectOurFreedom ("And oft conducted by historic truth, We tread the long extent of backward time.")
[ Post Reply | Private Reply | To 4 | View Replies]

To: BenLurkin

The problem is, the past isn’t there any more. You can’t go back to something that no longer exists.


10 posted on 09/25/2020 9:35:15 PM PDT by dsc (Do not pray for easy lives; pray to be stronger men.)
[ Post Reply | Private Reply | To 1 | View Replies]

To: Veggie Todd

Wow!


11 posted on 09/25/2020 9:36:09 PM PDT by rdl6989
[ Post Reply | Private Reply | To 7 | View Replies]

To: BenLurkin

Trump has been doing this for years. :^)


12 posted on 09/25/2020 9:36:49 PM PDT by eyedigress (Nanners, put your mask on!)
[ Post Reply | Private Reply | To 1 | View Replies]

To: BenLurkin

If that’s the case, how many science fiction stories are now fantasy stories?


13 posted on 09/25/2020 9:37:53 PM PDT by Jeff Chandler (This Space For Rant)
[ Post Reply | Private Reply | To 1 | View Replies]

To: Veggie Todd

That’s excellent. thanks.


14 posted on 09/25/2020 9:40:00 PM PDT by laplata (The Left/Progressives have diseased minds.)
[ Post Reply | Private Reply | To 7 | View Replies]

Uhh, sure, yeah. You first.


15 posted on 09/25/2020 9:40:27 PM PDT by Tellurian (Liberty and Justice for All)
[ Post Reply | Private Reply | To 1 | View Replies]

To: BenLurkin

I came to this thread from the year 5780.


16 posted on 09/25/2020 9:40:30 PM PDT by nickcarraway
[ Post Reply | Private Reply | To 1 | View Replies]

To: BenLurkin

So the science isn’t settled?
Well where is my Gomer Pyle face?
Surprise, surprise, Surprise - Sergeant Carter you’ll never believe this!!


17 posted on 09/25/2020 9:47:11 PM PDT by Honest Nigerian
[ Post Reply | Private Reply | To 1 | View Replies]

To: BenLurkin

One problem with time travel that I’ve never had explained: the earth is not where it was in space an hour ago, let alone many years ago. And we’re not just talking about where it is relative to the sun in its orbit, because the sun and its solar system is moving though space; as is the galaxy.

So to go back or forward in time, one would have to move through space as well, find where you wanted to be and make sure you don’t materialize inside a tree or a wall.


18 posted on 09/25/2020 9:50:13 PM PDT by hanamizu
[ Post Reply | Private Reply | To 1 | View Replies]

To: BenLurkin

Ok, then do it!!!! Similar to finding all those species that evolved from the previous “specie. “ Find those too. Fanciful buffoonery, just another clown filling up space to keep the money flowing in.


19 posted on 09/25/2020 9:51:37 PM PDT by Fungi
[ Post Reply | Private Reply | To 1 | View Replies]

To: BenLurkin

‘Travelers’ on Netflix


20 posted on 09/25/2020 9:52:22 PM PDT by kanawa ((Trump Loves a Great Deal (NorthernSentinel)))
[ Post Reply | Private Reply | To 1 | View Replies]


Navigation: use the links below to view more comments.
first 1-2021-4041-6061-8081-84 next last

Disclaimer: Opinions posted on Free Republic are those of the individual posters and do not necessarily represent the opinion of Free Republic or its management. All materials posted herein are protected by copyright law and the exemption for fair use of copyrighted works.

Free Republic
Browse · Search
General/Chat
Topics · Post Article

FreeRepublic, LLC, PO BOX 9771, FRESNO, CA 93794
FreeRepublic.com is powered by software copyright 2000-2008 John Robinson