If the Big Bang Happened...

[shawn001]

It is pretty cool.

As was pointed out the REALLY early universe would have been a super hot plasma.

""Scientists Create Hottest Temperature, Compare It To Big Bang"

"Scientists at the U.S. Department of Energy’s Brookhaven National Laboratory in New York report they have created the hottest temperature in the lab — 4 trillion degrees Celsius — which is thought to be consistent with actual temperatures that existed when the universe was born."


Scientists Create Hottest Temperature, Compare It To Big Bang - Technology News - redOrbit
scientists_create_hottest_temperature_compare_it_t o_big_bang/?source=r_technology

 

[FunctionalAtheist]

A tree falling in the forest does not make a sound whether anyone is there to hear it or not!!! It converts potential energy to kinetic energy to sonic energy. Sonic energy is in the form of waves which, if they strike an appropriate receptor, can be interpreted as sound.

If the tree made a sound, then that sound would be consistent. But we know that different individuals hear differently. In the same way when a color blind person looks at something purple, they see blue.

Light - sight
Sound Wave - Sound
Heat - Burn

 

[ruffen]

A tree falling in the forest does not make a sound whether anyone is there to hear it or not!!! It converts potential energy to kinetic energy to sonic energy. Sonic energy is in the form of waves which, if they strike an appropriate receptor, can be interpreted as sound.

If the tree made a sound, then that sound would be consistent. But we know that different individuals hear differently. In the same way when a color blind person looks at something purple, they see blue.

Light - sight
Sound Wave - Sound
Heat - Burn

Nope. There is an objective, observer-independent way to measure sound, light and heat.

You can measure the exact compression waves through air, and they are the way they are regardless of the shape of the ear of someone.

You can measure the exact wavelength of light, which will be the same number regardless of color blindness.

And you can measure the exact temperature of something.


The physical world is there and it is real. It is not observer dependent - and yes, the tree makes sound when it falls, regardless of conscious beings with ears in the vicinity.

Because sound is not something that is necessarily heard. Sound is physical compression waves through a medium, for example air.