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.
First Camera to Produce a Photograph: NiÃ©pce The camera obscura, a device written about by Aristotle more than 2,300 years ago and possibly used by great artists like Vermeer, is the ancestor to the photographic camera; however, according to the Oxford English Dictionary, a camera needs to be able to produce an image on film, paper, or another medium.