What do you need to know about Introduction to the Universe?

What do you need to know about Introduction to the Universe?

Introduction to the Universe (IB Option E1)


209 Seconds video showing cosmic scales: 



Powers of Ten video zooming out from earth to edge of universe :




A photo showing why the Milky Way is called that:




A photo showing stars moving across the night sky due to the rotation of the earth :





Where are the Voyager spacecraft now? 

It’s fascinating to look at the real-time measurement of the distance, to 8 decimal places!  Because of the motion of the earth, there are times of year when the distance actually shrinks instead of growing.  It takes light about 18 hours now to reach Voyager 1, which is now outside the solar system.  It is amazing that it is still able to make contact with us.  It has a radio that is about as strong as a refrigerator light bulb, and we are able to pick up the blinking of that light from almost 20 billion km away!



Monty Python’s Galaxy Song:





Lyrics to the Monty Python Galaxy song:


Just remember that you’re standing on a planet that’s evolving

And revolving at nine hundred miles an hour

That’s orbiting at nineteen miles a second, so it’s reckoned

A sun that is the source of all our power

The sun and you and me and all the stars that we can see

Are moving at a million miles a day

In an outer spiral arm, at forty thousand miles an hour

Of the galaxy we call the ‘Milky Way’

Our galaxy itself contains a hundred billion stars

It’s a hundred thousand light years side to side

It bulges in the middle, sixteen thousand light years thick

But out by us, it’s just three thousand light years wide

We’re thirty thousand light years from galactic central point

We go ’round every two hundred million years

And our galaxy is only one of millions of billions

In this amazing and expanding universe

The universe itself keeps on expanding and expanding

In all of the directions it can whizz

As fast as it can go, the speed of light, you know

Twelve million miles a minute and that’s the fastest speed there is

So remember, when you’re feeling very small and insecure

How amazingly unlikely is your birth




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