Robin's Great Coloring Pages: Dragons

This is my free coloring pages blog.

Today's new drawing is of a Young Dragon flying over the Kingdom.

Today's blog also includes some interesting applied science and applied math.

Young Dragon flying over the Kingdom

Were dragons real? ARE dragons still real? IF dragons are real how can such big animals fly? One answer is lighter than air flammable gasses. Get ready for some chemistry and some math!

Atomic weight is determined by the number of protons and neutrons in the nucleus of the atom. A proton has a mass of 1 atomic weight unit or 1 amu. A neutron has the same mass of 1 amu.

If a dragon had chambers of hydrogen gas for breathing fire, then the H2 gas could help it be lighter than air. H2 or Hydrogen molecules have an atomic mass of only 2, while Nitrogen molecules have an atomic mass of 28. Oxygen molecules have an atomic mass of 32. Nitrogen makes up about 78% of Earth's atmosphere. Oxygen molecules make up about 21% of Earth's atmosphere. So air or our atmosphere is about 28.5 amu or atomic mass units. 1% of the atmosphere is made up of Argon and other trace gasses.

Lets see how I got that answer:

A Nitrogen atom has 14 total protons and neutrons. There are 2 Nitrogen atoms in a Nitrogen molecule.

Nitrogen molecules make up 78% of our atmosphere. So...

14 amu x 2 = 28 amu 28 amu x .78 = 21.84 amu

An Oxygen atom has 16 total protons and neutrons. There are 2 Oxygen atoms in an Oxygen molecule.

Oxygen molecules make up 21% of our atmosphere. So...

16 amu x 2 = 32 amu 32 amu x .21 = 6.72 amu

So...

21.84 amu + 6.72 amu = 28.56 amu ...which is the atomic mass of air.

Hydrogen atoms or H2 have an atomic mass of 2 or 2 amu.

So Hydrogen atoms have an amu of 2 and air has an amu of 28.56 so Hydrogen molecules are much lighter than air. Or you could say much less dense than air.

Methane molecules are 1 Carbon atom and 4 Hydrogen atoms. Carbon has an amu of 12.

So... 1 Carbon atom of 12 amu + 4 Hydrogen atoms of 1 amu each = 16 amu. So methane has an atomic mass weight of 16. This is still lighter or less dense than the 28.56 amu of air.

What this means is that both the flammable gasses of Hydrogen and Methane could help a dragon to be lighter than air.

That was probably more math than you were prepared for on my free coloring pages blog. I used to be a science teacher.

Now think about this: Whether the dragon had methane or hydrogen gas... those are gasses that are very flammable. So the dragon must have a way to like click its teeth to make a spark just as it burps out or expelled forcibly the flammable gas. However, after blowing out a lot of gas it would begin to lose ints boyancy in the air and would need to land soon or it would fall out of the sky.

Another interesting thought is what if all dragons were not huge. Look at the very last drawing. You will see a Dragon Fairy (who specializes in Dragons) and she is sitting on a mushroom. She is clearly in her diminutive Fairy size of around 5 inches tall. That would be around 13 cm tall. So the Dragon can't be much bigger than a yard or about .9 meters long at most. My beet is that the huge dragons are extinct and the smaller Dragons are hiding out in the wild. They do have some powerful magic that I am sure would help hide themselves from mortal eyes.

NOTE: This new dragon drawing, in printable form, can be found by clicking on the button that says: Fantasy, Myths, and Circus. Then scroll to the bottom of the drop-down menu. Below on this page, I am posting a few other dragon drawings. They are found, in printable form, further up the same list. So, the below drawings are older drawings from previous posts on this blog. Have fun coloring!