The Nature of Physical Air

44. The origin of mountains, plains, seas, etc., on the Earth’s surface.

• Body B and F are air.
• Body C is the very thick inner crust of the Earth from which metals originate
• Body D is water
• Body E is the outer Earth composed of rocks, clay, sand, and mud.
• Above the fragments 2 3 and 6 7, raised by water, are seas.
• Above the other fragments inclined more gently and not covered by water, such as 8 9 and V, are flat plains.
• Above the more erect ones, like 1 2 and 9 4 V, are mountains.
  • They split into many smaller fragments when they fall due to their own gravity and their ends strongly collide with each other.

These fragments formed:

• rocks on some seashores, such as 1
• the multiple ridges of mountains, some very high like 4, others gentler like 9 and V
• sea cliffs, such as 3 and 6

45. The nature of the air can be derived from all this.

It means that physical air is just a collection of earth-aether particles.

They are so fine and separated from each other that they comply with any motion of the air-aether globules.

Therefore, it is a very decompressed, fluid, and transparent substance that can be composed of the minutiae of any shape.

46. Why does physical air easily compress and decompress?

Air easily compresses with cold and decompresses with heat.

As almost all its particles are flexible, like soft feathers or thin threads.

The faster they move, the more they expand, requiring a larger spherical space for their motion.

In this context:

• heat is merely the acceleration of motion in these particles
• cold is its decrease.

47. The violent compression of air in certain machines.

Air, violently compressed in a vessel, possesses the force to rebound and immediately extend itself over a larger space.

Hence, machines are created that, using only the force of air that can:

• lift water upwards like fountains. and
• project projectiles with great force, similar to bows.

This is because air particles need space around them for the air-aether globules to flow around them.

• When they are compressed, other air particles occuply this space.

The agitation and heat of the compressed air particles is preserved by the motion of the air-aether globules constantly flowing around them.

• This causes the physical air particles to mutually strike each other at their extremities and displace each other.
• This makes them collectively, exert force to occupy a larger space.