The quantity h, now known as the Planck constant, is a universal constant with the approximate value of 6.626 X 10^-34 Js. Max Planck assumed that the radiation energy is emitted in discrete packets called quanta rather than in a continuous way. The energy E of the quantum is related to the frequency Î½ by E = hÎ½. The quantity h, now known as the Planck constant, is a universal constant with the approximate value of 6.626 X 10^-34 Js. Max Planck assumed that the radiation energy is emitted in discrete packets called quanta rather than in a continuous way.
Headaches Frequent headaches can be another sign that you are anemic. In the context of a blood disorder, however, headaches usually indicate that there is a lack of oxygen reaching the brain. When this happens, the arteries in the head start to swell, causing pain.
Anemia means you have a low red blood cell count or your red blood cells don't have enough hemoglobin. Hemoglobin is an iron-rich protein found in red blood cells that carries oxygen from your lungs to the rest of your body. If you're anemic, you might experience the following: 1  weakness. 2  feeling tired/fatigued. 3  cold. 4  dizziness. 5  crankiness.