To give blood you must: 1  Be in general good health.  Be at least 17 years old. (If you are 16 you can donate with a CBC consent form signed by your parent). There is no upper age limit as long as you have no health restrictions.
Specific radiative intensity. Specific (radiative) intensity is a quantity used in physics that describes electromagnetic radiation. It is a term used in much of the older scientific literature. The present-day SI term is spectral radiance, which can be expressed in base SI units as W mâ2 srâ1 Hzâ1.
Intensity: The brightness or dullness of a hue. One may lower the intensity by adding white or black. Luminance / Value: A measure of the amount of light reflected from a hue. Method 2: Another way to get vivid color s in photography is to tweak a couple of manual settings on your digital SLR camera called ' ~ '.