Reflecting telescopes and their advantages & disadvantages
Reflecting telescopes use the mirrors instead of lenses to focus the light, The convex mirror is used to gather the light and reflect it back to a focal point to get the light out...
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iPhone 4 review, advantages, disadvantages & features
iPhone 4 is the 4th generation iPhone, it has an all-new look, new feel and plenty of new skill, We already caught a glimpse of the iOS4 But there’s much more such as a...
What are the advantages & disadvantages of Refracting Telescopes?
The telescope is an instrument that collects and analyzes radiation emitted by distant sources, The most common type is the optical telescope, It is a collection of lenses or mirrors that are used to...
What are the advantages and disadvantages of iPhone 3GS?
iPhone 3GS is the third generation of iPhone, The shape and dimensions are nearly identical to the previous version, The placement of the buttons, a 3.5-inch screen and a SIM card slot with iPhone...
