
Light
In ebook format
Essential to all plant and animal life on Earth light has always been a source of wonder and mystery. This intriguing book brings to life our exploration of this fundamental energy source.Once early humans had learned to harness fire they could have light and heat whenever they wanted - some of the oldest oil lamps that have been discovered were made out of rocks and shells about 1...
In ebook format
Essential to all plant and animal life on Earth light has always been a source of wonder and mystery. This intriguing book brings to life our exploration of this fundamental energy source.Once early humans had learned to harness fire they could have light and heat whenever they wanted - some of the oldest oil lamps that have been discovered were made out of rocks and shells about 1...