balloons!?!?!?!?!
Nahhh, the element "air"(i.e. fire, wind, and earth) cannot be broken down any farther. In other words, I doubt the Native Americans had the
technical and scientific knowledge to create balloons; let alone reliable ones!
The llama is most useful as a pack animal. Llamas generally can carry about 130 pounds (60 kilograms) each, and are sure-footed on the mountain trails. They can travel from 15 to 20 miles (24 to 32 kilometers) a day with a full load. If a llama feels its pack is too heavy, or if it thinks it has worked hard enough, it will lie down and refuse to move.
The ancient Maya once occupied a vast geographic area in Central and South America. Their civilization extended to parts of what is now Mexico, Honduras, and El Salvador, and most of Guatemala and Belize.
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Llamas cannot carry men, heavy materials or for that matter tow stones, a recent experiment established that even kites could be applied with a similar effort in mind.
news.nationalgeographic.com...
Beyond that Byrd not only would I site that it is a practical explanation for many issues in respect to Mayan, Toltec and Aztec Civilizations, I would also
site that to the best of my knowledge this is correct.
I do rememeber a conversation at ATS which cited the moving of a stone by American Indian cultures which far exceeded anything accomplished in the Easter Hemishpere.
Any thoughts?
Hot air balloons are based on a very basic scientific principle: warmer air rises in cooler air. Essentially, hot air is lighter than cool air, because it has less mass per unit of volume. A cubic foot of air weighs roughly 28 grams (about an ounce). If you heat that air by 100 degrees F, it weighs about 7 grams less. Therefore, each cubic foot of air contained in a hot air balloon can lift about 7 grams. That's not much, and this is why hot air balloons are so huge -- to lift 1,000 pounds, you need about 65,000 cubic feet of hot air!
To keep the balloon rising, you need a way to reheat the air. Hot air balloons do this with a burner positioned under an open balloon envelope. As the air in the balloon cools, the pilot can reheat it by firing the
burner.
See link...
travel.howstuffworks.com...