What is light

Pocket Genius Science: Energy and forces – Using light

by

Facts At Your Fingertips: Energy and forces – Using light We need light to see the world and to find our way around it. In the earliest days of humanity, we just used the natural light produced by the Sun and went to bed when it got dark. Today, we can also use artificial lights … Read more

Pocket Genius Science: Energy and forces – Light

by

Facts At Your Fingertips: Energy and forces – Light Light is the only form of electromagnetic radiation we can see. Most things absorb and reflect light, but few objects give out light. The Sun is the main source of light in the day, while electric lights provide illumination at night. Making shadows Some materials, such … Read more