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.
Nikon Digital SLR Camera Chronological History. Nikon Released Their First Camera in 1948. They were determined to make the very best camera (the Nikon 1). Leica was the undisputed leader in 35mm cameras, so Nikon set about to improve upon this camera and created various Nikon models through 1959. In May of 1959, the Nikon F single-lens reflex (SLR) camera was introduced and quickly became the unconfirmed standard of photo journalists and other professional photographers.