What makes fiber optic cables flexible?

As various replies have mentioned, it's partly that anything long and thin tends to be flexible, and partly that fiber optic cables are fire-polished and then sealed in plastic to prevent the microscopic surface cracks that normally make glass weak and brittle. read more

Light makes Fiber optic cables flexible when compare to copper cable. Fiber optic cable is made from fine hair-like glass fibers that carry light impulses transmitted by an LED or laser. Data in optic fiber is transmitted in the form of light. read more

An optical fiber or optical fibre is a flexible, transparent fiber made by drawing glass or plastic to a diameter slightly thicker than that of a human hair. Optical fibers are used most often as a means to transmit light between the two ends of the fiber and find wide usage in fiber-optic communications, where they permit transmission over longer distances and at higher bandwidths (data rates) than electrical cables. read more

A fiber optic cable is a network cable that contains strands of glass fibers inside an insulated casing. They're designed for long distance, very high-performance data networking, and telecommunications. read more