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.
Invention of the Camera. A camera is a device which enables the recording of still and moving photographs within seconds. Without the camera, it was not possible to capture and preserve good memories. The camera was first designed by Joseph N. Niepce, a retired French Military Officer. He invented his first camera in 1826 in France.