HOT AIR BALLOONS

How Long Have Hot Air Balloons Been Around 1783 was the first

recorded flight of a hot air balloon.

Accomplished by the Montgolfier brothers of France.

We actually believe that the first flights of hot air balloons were thousands of years earlier.

NASCA LINES

In the desert of Peru, there are great drawings in the earth called the NASCA lines.

NASCA LINES The Lines were not discovered till about one

hundred years ago.

We believe that the natives of the time use primitive hot air balloons made out of animal hides

They use the balloons to elevate high enough to direct the people on the ground to create the design.

Why Does Hot Air Rise

The air inside the balloon has less gas particles and therefore is less dense.

The air inside is lighter, which in turn creates “ Lift” or an up thrust to carry the balloon and its cargo with it.

OTHER LIGHTER-THAN-AIR GASESHelium

Created from the distillation of petroleum Very expensive to make. Best Lighter-than-air lifting gas.

Hydrogen Created by separating water. (H20) Inexpensive to produce Not as good of a lifting gas as Helium.

WHY DON’T WE USE HYDROGEN

Extremely Flammable.