If there is explosion with absence of oxygen?

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    Explosion Oxygen
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Discussion Overview

The discussion centers around the concept of explosions in the context of the Big Bang theory, particularly addressing the role of oxygen and the nature of explosions in space. Participants explore the implications of the absence of oxygen during the Big Bang and how it relates to different types of explosions, including nuclear and chemical reactions.

Discussion Character

  • Debate/contested
  • Conceptual clarification
  • Technical explanation

Main Points Raised

  • Some participants argue that the Big Bang was not an explosion but rather a uniform expansion from a hot dense state, emphasizing that this expansion occurred throughout space itself.
  • Others point out that explosions do not necessarily require oxygen, citing examples such as nuclear explosions and the fusion processes in stars.
  • Concerns are raised regarding the reliability of Dr. M. Kaku as a source, with some participants suggesting that his popularizations do not meet the standards of acceptable references for scientific discussion.
  • One participant questions the use of the term "bang," noting that sound cannot travel in the vacuum of space, which adds to the complexity of the analogy between the Big Bang and conventional explosions.
  • It is noted that many typical explosions, such as those involving gunpowder or dynamite, also do not require an external supply of oxygen, challenging the premise of the original question.

Areas of Agreement / Disagreement

Participants express multiple competing views regarding the nature of the Big Bang and the role of oxygen in explosions, indicating that the discussion remains unresolved with no consensus reached.

Contextual Notes

There are limitations in the discussion regarding the definitions of "explosion" and "Big Bang," as well as the assumptions about the nature of sound in space. These factors contribute to the complexity of the arguments presented.

Bong Bong
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According to Dr. M. Kaku, how a big bang theory supports when there was an absence of oxygen in the outer space?
 
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The big bang was not an explosion it was a fairly uniform expansion from a very hot dense state to a less hot and dense state but bigger in size.
Also this expansion did not occur somewhere in space, the universe is space.
Anyway not all actual explosions require oxygen, a nuclear bomb doesn't for one.
 
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You need oxigen for making fire, but not for an explosion. For example, explosions in main sequence stars are not related to oxigen but with fusion of hidrogen.
But as said in the previous post, it is not an explosion of some kind of bomb but a rapid expansion of the space itself, so actually it has nothing to do
 
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Also, be aware, Kaku is not a reliable source. He is a popularizer these days, not a scientist.

 
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Bong Bong said:
According to Dr. M. Kaku, how a big bang theory supports when there was an absence of oxygen in the outer space?

I think you should post a reference for this.
 
phinds said:
Also, be aware, Kaku is not a reliable source. He is a popularizer these days, not a scientist.
CWatters said:
I think you should post a reference for this.
To be precise... Kaku's popularizations do not meet the Physics Forums requirements for an acceptable source. His serious work is a different matter.
 
It would still be nice to have the context.
 
Bong Bong said:
According to Dr. M. Kaku, how a big bang theory supports when there was an absence of oxygen in the outer space?
Yeah, and how can there be a "bang" if you can't hear sound in space?
 
Anyway, the premise in the OP is faulty. Most "normal" explosions do not require external supply of oxygen.
Not just nuclear explosions but gunpowder, dynamite, etc. So even if the analogy between big-bang and an explosion were relevant (I don't think it is), the absence of oxygen is not a problem.
 
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