Carpe diem is a Latin aphorism, usually translated seize the day, taken from the Roman poet Horace 's Odes (23 BC). 1  1 Translation.
Fiber optics (optical fibers) are long, thin strands of very pure glass about the diameter of a human hair. They are arranged in bundles called optical cables and used to transmit light signals over long distances. If you look closely at a single optical fiber, you will see that it has the following parts: 1  Core-Thin glass center of the fiber where the light travels. 2  Cladding-Outer optical material surrounding the core that reflects the light back into the core.
Optical Fibres. Total internal reflection can occur as long as the angles made by the rays are greater than the critical angle. In glass the critical angle is around 42Â° and today we use very narrow fibres of glass to transmit pulses of light. These are called optical fibres.They are used in telecommunications to transmit telephone conversations and data-including this web page to your computer!n glass the critical angle is around 42Â° and today we use very narrow fibres of glass to transmit pulses of light. These are called optical fibres. They are used in telecommunications to transmit telephone conversations and data-including this web page to your computer!