There are a few electrolyte abnormalities: hypokalemia, hypercalcemia, hyperkalemia and hypocalcemia. Hypokalemia is also referred to as low potassium. The main cause is loss of potassium in urine due to diuretic medicines. Diarrhea and vomiting can also contribute to hypokalemia.
The name of the first camera is camera obscura and is described to be the foundation on which most modern cameras are based on. Johann Zahn made the first camera, in 1685.
In the first year of the 20th century, 1901 George Eastman capitalized on his own technology and created the Brownie. This new camera was the first one that had the capability of taking snapshots and it was small enough to be convenient for camera owners to carry around with them.