What does a complete blood count measure? A CBC measures the amount of 3 types of cells in your blood: White blood cell count. A white blood cell count, also called a leukocyte count, measures the total number of white blood cells in a sample of blood.
In the umbra, the light from the Sun is completely blocked by the Earth. Our lunar observer would see a total solar eclipse; we see the Moon darkened, but glowing a dull red from light scattered by the Earth's atmosphere.
Safely View a Solar Eclipse. Our solar-eclipse glasses provide eclipse safety for viewing all solar eclipses. Eclipse glasses, and eclipse viewers, block out 100% of harmful ultra-violet rays, 100% of infrared, and 99.999% of intense visible light, protecting your eyes and letting you view these spectacular natural phenomena.