That’s right, the temperature does not determine how strong the sun is, but rather the angle of the sun in the sky. The higher the angle, the more intense the sunlight… The angle of the sun determines ...

A: Yes, Jupiter’s illumination occasionally dips below 100 percent, although the giant planet never appears less than 99 percent lit. Unfortunately, this phase effect is hardly noticeable through ...

In an optical fiber, the maximum angle from the axis at which light can remain confined within the core for "total internal reflection." In contrast to the "acceptance angle," which is measured ...