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.
Around the same time he started selling a camera which he called Kodak. It would become one of the most well known devices in the history of the camera. It was packaged with a hundred exposures and had fixed focus lens. In 1900 Eastman came up with the Brownie, from which would emerge the idea of the snapshot camera. It would prove so successful that it became standard well into the 1960s.