A bumble bee flies using it's wings, beating faster in a downward motion, thus increasing the air pressure below the wing and lowering the air-pressure above. This results in lift and can be used quite effectively by our little friend Eric, whose mass is quite small and not very dense.
Hence the following song:
Half a bee, philosophically,
Must ipso facto half not be.
But half a bee, has got to be,
Vis a vis its entity.
Do you see?
But can a bee be said to be
Or not to be an entire bee,
When half the bee is not a bee,
Due to some ancient injury
Singing!
La di di, one two three,
Eric the Half a Bee,
A B C D E F G,
Eric the Half a Bee.
Is this wretched demi-bee,
Half asleep upon my knee,
Some freak from a menagerie?
No! It's Eric the Half a Bee.
Fiddle di dum, fiddle di dee,
Eric the Half a Bee.
Ho ho ho, tee hee hee,
Eric the Half a Bee.
I love this hive employee-ee,
Bisected accidentally,
One Summer afternoon by me,
I love him carnally.
He loves him carnally..
Semi-carnally.
The end.
The centre of a black hole is only theoretical, however what is widely hypothesised as the centre of the black hole is a point singularity, that being a ball of mass that is so massive and so condensed (to close to a single point in space) that it's gravity is massively amplified.
It is also widely hypothesised that the galaxy itself has a series of what are termed "Super Massive Black Holes". These are absolutely massive, hence the name, and thus have much more gravitational pull than you're ordinary exhausted star floating off towards the end of one of the spirals. The reason that these don't suck the whole galaxy in on itself is that their gravitational pull is nicely countered by hundreds of thousands, possibly millions of massive stars that all, with their combined gravitational pull, pull back on the super massive black holes and happily keep it spinning around.
And if you made it through all that (vastly truncated version), this is for you:
Just remember that you're standing on a planet that's evolving
and revolving at 900 miles an hour,
It's orbiting at 19 miles a second, so it's reckoned,
the 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 the outer spiral arm, at 40,000 miles an hour,
of the Galaxy we call the Milky Way.
Our Galaxy itself contains 100 billion stars,
it's 100,000 light-years side-to-side,
It bulges in the middle, 16 000 light-years thick,
but out by us it's just 3 000 light-years wide.
We're 30,000 light-years from galactic central point,
we go round every 200 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, at 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,
Pray that there's intelligent life somewhere up in space,
because there's bugger all down here on Earth.
