Sunshine through the clouds and Earth's atmosphere You can see that the sunlight that reaches the Earth travels at different wavelengths. On a sunny day, put a full glass of water (a real glass glass) in [...]
Photons - Sunshine breaking through the clouds. When did the first photons appear? A photon is a tiny little particle of light, far too small to see individually. All light is [...]
Rainbow over Amazon river - What is light made of? What is light made of? Light is made of billions of tiny particles called photons. These photons travel from one place [...]
