In particular, the photon model accounted for the frequency dependence of light's energy, and explained the ability of matter and radiation to be in thermal equilibrium.he energy of a system that emits a photon is decreased by the energy of the photon as measured in the rest frame of the emitting system, which may result in a reduction in mass in the amount. Similarly, the mass of a system that absorbs a photon is increased by a corresponding amount.
Responding to the changes, the Finnish company started churning out both sophisticated multimedia handsets as well as low-end devices. The year 2001 saw the company launching the Nokia 7650, its first phone to feature a built-in camera. It was also the first to sport a full color display.
Celluloid film followed in 1889. By the turn of the century, the Kodak Brownie camera had been invented, making it possible for the average person to take candid photos of friends and family. This ushered in a new era of photography that continually evolves, even today with digital cameras.he First Camera Invented. The first camera invented by Mr. Wolcott in 1841 received U.S. patent number 1,582. This camera could take candid photos and Mr. Wolcott used the daguerreotype process to reproduce the images on paper.