The Invention of the printing press in the 15'th century made it possible to mass- produce and circulate a growing volume of reading material. it chaned the way people read, communicated and stored knowledge
For example, if there is a L shaped sketch and you dimension from the bottom of the L to just above the horizontal part, and then you dimension the vertical part from the end point of the last dimension you'd be okay. But, if you dimensioned both of those lengths and then the total length you would be over dimensioning the sketch.
<span>1. Count Sergei Lvovich Levitsky invented the bellows camera. It is the oldest type of camera, resembling an accordion - you must have seen it in older movies. 2. The substance that the first photohraph was made from was bitumen. Bitumen is the material that asphalt in road construction is made of, but it served its purpose as the material for the first photograph as well. 3. The first commercially available digital camera was Kodak DCS 100, released in 1991, with a resolution of 1.3 megapixels. At the time, this was a cutting-edge technology, although, of course, nowadays far better cameras can be bought.</span>
