1 -- History of the Universe Made Easy (Part 1)

"its nothing compared to the things we dont know"
So? What's your point? We should ignore everything we do know because there's always going to be something we don't know? Please explain the point you're trying to make.

@HarshColby yes we might understan many text books worth of information about chemistry and physics but its nothing compared to the things we dont know.

I could ask an endless amount of questions and when people find the answers to them only more questions will arise.

But... but... what's in the box!?

I'm not sure what you mean by "they used known elements". Matter didn't exist at the BB, and we know this because we've built accelerators that can test what happens under those conditions.

We know the speed of light is a constant. See Michelson Morley experiment. We also know that it's been a constant for billions of years.

They know the make up of stars because of spectral lines. (Google "spectral lines" and read the first two hits.)

yeah, evidence suggests the box isn't airtight :)

Depending on the element, different colours in the light spectrum are visible through a spectrometer. This is how we discovered which elements were present in our own Sun.

Light has a speed of 300,00km per second in a vacuum and this law applies (or at least it should) throughout the Universe.

yea its big hell i know that,and to figure that out they used known elements. how do they know whats on a star even 1 light year away (.5.88 trillion miles ) that light could be taveling faster than they think .i guessed there was air in the box

"so it came from 1 giant planet"
Giant? No. Planet? No. Did you watch the video?

so it came from 1 giant planet

"does the big bang theory suggest it all came from one thing"
Yes, it requires that everything we can currently see was created by the BB at one time 13.7 billion years ago. for example, if there were more than one Big Bang (multiple mini bangs?), the CMB would look very different.

"We actually understand very little about the natural process that makes a snowflake"

"very little"?

Crystalization mechanisms, dependence on temperature, chemical makeup, source of vapor that creates them, effects of inversion layers on their survival while falling, temperature at which they melt...etc etc.

Before we understood all this, people said snow was created by the gods or other magical forces. We now know a great deal and don't go around saying a snowflake god is needed for each one