Jump to content

Let's start at the beginning?

Recommended Posts

In the big bang theory, there was an infinitely hot, infinitely dense singularity.

Isn't temperature the emittance of photons, and photons according to the current model, didn't exist for around 380,000 years after the big bang. So how could the singularity be hot if there were no particles to vibrate.

Am I confusing energy with temperature? can you have energy without temperature? and how can you explain density without matter.

Apologies for the stupid questions, I just want to start a conversation.


Link to comment
Share on other sites

21 minutes ago, DiamondSun said:

Isn't temperature the emittance of photons


Temperature is a measure of the average kinetic energy of the particles in a substance. Photons are emitted by hot objects, with the spectrum depending on the temperature.

You are referring to the time of last scattering. Photons existed before that time. They just didn’t travel very far before interacting.


Link to comment
Share on other sites

18 hours ago, DiamondSun said:

I suppose I'm trying to work out if there could have ever been just energy without photons.

Can there be yellow without bananas and lemons? Can you have round without balls and circles? Can I borrow a cup of momentum? All of these things, including energy, are properties of a thing rather than things by themselves.

Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.