What is the difference between direct and indirect sunlight?
I live in the Northern Hemisphere, where the Sun shines from the Southerly exposure. For indirect light, I put my orchids in the North windows.
Direct sunlight is in the direct sun. Here's indirect sunlight:
http://www.gardenterms.com/indirect_sunlight.htm
Thanks!
Direct sunlight refers to the solar radiation that reaches the Earth's surface in an unobstructed manner, directly from the Sun. Indirect sunlight, on the other hand, refers to sunlight that is scattered, reflected, or diffused before reaching the Earth's surface.
To understand the difference, it is essential to grasp the concept of the Earth's atmosphere. When sunlight passes through the atmosphere, it encounters various particles such as dust, gas molecules, and water droplets. These particles can scatter and absorb sunlight in different ways.
Direct sunlight occurs when the Sun's rays hit the Earth's surface without any significant obstruction or scattering in the atmosphere. This usually happens when the Sun is high in the sky, like during midday. Direct sunlight is characterized by a strong and focused light, casting well-defined shadows.
Indirect sunlight, also known as diffuse sunlight, occurs when the Sun's rays are scattered or blocked by particles in the atmosphere. This can happen during sunrise, sunset, or when the Sun is low on the horizon. The scattered sunlight creates a softer and less intense illumination, with less defined shadows.
To observe the difference between direct and indirect sunlight, you can simply go outside on a sunny day and pay attention to the shadows cast by objects. Direct sunlight will create sharp, dark shadows, while indirect sunlight will produce diffused and softer shadows. Additionally, you may notice that direct sunlight feels warmer, while indirect sunlight can feel cooler due to the scattering and absorption of some of its energy in the atmosphere.