A Brief History Of Fiber-Optic Communications Optical communication systems date back to the 1790s, to the optical semaphore telegraph invented by French inventor Claude Chappe... Learn More Optical-Cable Construction The core is the highly refractive central region of an optical fiber through which light is transmitted... Learn More power protection

Computers A pinhole cam is a simple camera without lens. It’s a small box or can with a tiny (usually 0.5mm or smaller) hole inside one end and a piece of photographic paper in the other. The image is build by light passing through the hole. Although in the early days, pinhole cams did not have very clear image quality, these days there are pinhole cameras come with micro lens and provide very good image quality. The first pinhole camera was built in the 19th century. It gained some popularity and that time. Although cameras have advanced in size and quality, the principles still remain the same. Business - All business/finance/loan/mortgage related link can be found here more 1 2 3 4 5 Computers - All computer hardware/software/peripheral related link can be found here more 1 2 3 4 5 Internet - All webhosting/webdesign/internet marketing related link can be found here more 1 2 3 4 5 Software - All software related link can be found here more 1 2 3 4 5 Web Design - All web design/development related link can be found here more 1 2 3 4 5 Web Hosting - All web hosting related link can be found here more 1 2 3 4 5 Web Promotion - All search engine optimization/internet marketing related link can be found here more 1 2 3 4 5 Web Resources - All other web related link can be found here more 1 2 3 4 5 Recreation - All travel/hotel/cruise related link can be found here more 1 2 3 4 5 Casino - All online gambling/poker/blackjack/roulette related link can be found here more 1 2 3 4 5 Health - All online pharmacy/hospital/health related link can be found here more 1 2 3 4 5 Shopping - All online shopping/gift related link can be found here more 1 2 3 4 5 Miscellaneous - All other links can be found here more 1 2 3 4 5   If you still prefer to build a camera yourself, then here are the basic steps you should look at. First, you’ll need a cardboard with a tape hinge , which can be used as a shutter. Second, you’ll need to make a pinhole. Simply take a needle (small in diameter, about 0.5mm) and punch through a piece of tinfoil. Then tape that piece to the inside of the box through a larger hole. If you’d like to change the angle of the view, you might want to create a moving box. You can simply take a sliding film holder so that the distance between the film and the pinhole can be changed.

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