diameter
It is a solar eclipse. The Moon passes across the face of the Sun, and blocks out the sunlight for a short period, so casting a shadow on the Earth.
The distance between the valve face and the head of the valve is called the margin.
It doesn't vary so much. The face of the Earth directed at the sun varies yearly -- seasons!
During a solar eclipse. --- ANSWER --- A Solar eclipse occurs when the Moon passes between the Sun and the Earth. The shadow cast by the Moon falls on the earth during 'daytime'. Because the Moon is just the right distance from the Sun it can cover it completely for a very short time as it passes across it's face.
They called him Scarface because he had a scar going across his face.
The slant height of an object is the distance measured along a lateras face from the base to the apex . It is measured in the center of the face.
The face of the Earth.
A lunar eclipse is when the Earth passes between the Moon and the Sun. The Earth's shadow, cast by the Sun, passes over the Moon.A solar eclipse is when the Moon passes across the face of the Sun, as viewed from Earth, and the Sun casts a deep shadow over the Earth.
Because only one half of the Earth can face the sun at any one time ! As the earth rotates, the sun appears to travel across the sky.
This link shows the specs for all current U.S. coins.
It is called the Atmospere STUPID! ;) Any ways... Add me on face book :)
The pin on a sundial is called a gnomon. It casts a shadow onto the sundial's face, indicating the time of day as the sun moves across the sky.