Solar Energy is not a new idea.

One day the red sky may choke us and the acids carried on the winds will rain down on the Earth bringing death. We already have seen the beginnings of the end, but it’s not too late to stop it.

Using alternative energy sources can help prevent global warming, air pollution, and acid rain. History tells us these alternative sources have been around for a very long time

When was the first recorded use of solar energy?

The 7^th century BC!! Evidence has been found that a magnifying glass was used to concentrate the sun's rays to light a fire for light, warmth, and cooking.

And it didn’t end there…..

In the 3rd Century B.C. Greeks and Romans use mirrors to light torches that were used for religious purposes.

Then-----they found another use-----

In the 2nd Century B.C. Historians believe that the Greek scientist Archimedes took advantage of the reflective properties of the Greek’s bronze shields to focus sunlight and set fire to Rome's wooden ships.

But there were peaceful purposes too---

In 100 AD Italian historian Pliny the Younger builds passive solar home using glass to keep heat in and cold out. It is the first house of its kind.

And

Starting in 100 AD The Romans built baths with large windows facing south to let sunlight in. The sunlight provides natural heat for the baths.

Today we call that passive solar energy.

Passive solar energy was so popular that---

In the 6th Century the Justinian Code establishes "sun rights" to ensure that a building has access to the sun.

The Romans weren’t the only ones making use of the Sun----

In the 13th Century in North America, the ancestors of Pueblo people known as Anasazi build south-facing cliff dwellings. These buildings captured the warmth of the winter sun.

So – you may ask---Where’s my free solar power?

One source you may try is a solar oven. There are many types of ovens that can be constructed at home and found online. Come back again for more information.