Time and Atoms: Can they exist without each other

  • Context: Graduate 
  • Thread starter Thread starter Jesus Freak
  • Start date Start date
  • Tags Tags
    Atoms Time
Click For Summary

Discussion Overview

The discussion revolves around the relationship between time and atoms, specifically questioning whether atoms can exist independently of time. Participants explore hypothetical scenarios involving the alteration of time and its potential effects on atomic structure and chemical bonds.

Discussion Character

  • Exploratory
  • Debate/contested
  • Conceptual clarification

Main Points Raised

  • One participant questions if stopping or reversing time would cause atomic structures to disintegrate, particularly affecting covalent bonds and the existence of matter.
  • Another participant argues that if time were reversed, chemical reactions would also reverse, suggesting a need for deeper consideration of the implications.
  • A participant mentions that cosmologists have contemplated similar topics, referencing Stephen Hawking's work as a resource for further exploration.
  • Discussion includes the concept of antiparticles, with a participant suggesting that antimatter could be viewed as particles traveling backward in time, raising questions about the nature of time and particles.
  • Another participant clarifies the composition of antihydrogen compared to hydrogen, noting that there may be no fundamental differences in their interaction with time.
  • A participant expresses confusion regarding the relationship between antiparticles and time travel, referencing a source that discusses the equivalence of particles moving forward and backward in time in Feynman diagrams.

Areas of Agreement / Disagreement

Participants express a range of views, with some supporting the idea of time's influence on atomic existence while others challenge the premises of the original question. The discussion remains unresolved with multiple competing perspectives on the relationship between time and atoms.

Contextual Notes

Participants highlight the complexity of the concepts involved, including the mathematical descriptions of particles and the implications of time reversal, without reaching a consensus on the nature of these relationships.

Jesus Freak
Messages
3
Reaction score
0
This is a question regarding time and atoms. My question is this: if one were able to stop the occurrence of time, or maybe even reverse time, since the atom in forward time is constantly in motion, would the altering of this forward motion cause the atom to fall apart. Would the covalent bonds of certain elements fall apart, thus ending existence? Just a minor, unimportant question, but I would like to here some opinions.
 
Physics news on Phys.org
I think this is totally stupid. If time were going backwards, things, such as chemical reactions would also travel backwards. I think this one needs a little more thought.
This universe is composed of four dimensions.
Width, height, length, time.
 
Well, this is pretty odd question. However, some cosmologists have actually pondered about this topic! You might want to check the Cosmology forum. Stephen Hawking's 'A Brief History of Time' is good beginners introdcution to these concepts.
 
as anti-particles such as the positron are supposed to be equivalent to particles of ordinary matter going backwards in time , wouldn't an atom of antimatter be doing just what you suggest , i.e. be considered as traveling in the reverse direction in time .In fact I read somewhere that they have made a small quantity of anti-hydrogen ,so is that the same as ordinary hydrogen traveling in the opposite direction through time?
 
Last edited:
PhillipF,

Antihydrogen is the antimatter counterpart of hydrogen. Whereas the common hydrogen atom is composed of an electron and proton, the antihydrogen atom is made up of a positron and antiproton. There are real no differences with the reaction of matter/time as apposed to antimatter/time.
 
hello brickster
thanks for the reply , I admit I am thoroughly confused about this idea of antiparticles and time travel .I came across it when I read J .Gribbins book 'In Search of Schrödinger's Cat'
On p187 he says "The dramatic discovery Feynman made in 1949 is that the space-time description of a positron moving forward through time is exactly equivalent to the same mathematical description of an electron moving backward in time along the same track in the Feynman diagram '

So I suppose the question really should be 'Is this 'track' just a mathematical description or does it describe an actual particle going backwards through time ?'
 

Similar threads

  • · Replies 5 ·
Replies
5
Views
4K
  • · Replies 4 ·
Replies
4
Views
2K
  • · Replies 5 ·
Replies
5
Views
7K
  • · Replies 14 ·
Replies
14
Views
7K
  • · Replies 49 ·
2
Replies
49
Views
6K
  • · Replies 4 ·
Replies
4
Views
3K
  • · Replies 11 ·
Replies
11
Views
6K
  • · Replies 4 ·
Replies
4
Views
2K
Replies
1
Views
3K
  • · Replies 15 ·
Replies
15
Views
3K