Unit 9 Speaking

There was not an easy and quick way to record a memorable scene or a person's likeness before the camera was invented. Before the camera, people had to rely on drawings and paintings to see what a certain place or person may have looked like. The first camera, which had the name of camera obscura, could not record print images. Later on, Louis Jacques Mandé Daguerre invented a way to make photographs on an incredible light-sensitive plate that was inserted into a specific type of camera, but this process for making daguerreotypes was certainly too expensive, awkward and perhaps time consuming. Then, George Eastman came along and simplified this photographic process and invented the Kodak camera, which made photography easy and accesible to the public. The Polaroid, the Leica, digital and disposable cameras have made photography even more versatile and popular. We often take for granted how this turning point invention of cameras has affected our lives. Next,  we will explore the world before this invention, the life of the inventor, and how she or he came upon the discovery, how the world was changed by the invention, and how it may influence our future.

How did the invention of the camera change the world¿

AT A GLANCE: The modern world is an electrified world. The light bulb, in particular, profoundly changed human existence by illuminating the night and making it hospitable to a wide range of human activity. The electric light, one of the everyday conveniences that most affects our lives, was invented in 1879 by Thomas Alva Edison. He was neither the first nor the only person trying to invent an incandescent light bulb.

Light bulb