Once a client is presented with the HSTS policy, it caches the information for the specified max-age period. During that period, the browser refuses to access the web service over unencrypted HTTP, and refuses to grant exceptions to certificate errors (if the site previously presented a valid, trusted certificate).
A laser is a device that emits light through a process of optical amplification based on the stimulated emission of electromagnetic radiation. The term laser originated as an acronym for light amplification by stimulated emission of radiation.
Individual fibers can be filtered for spectacular color effects. Multiple fibers can also share one light source, making this application highly efficient. I have seen many applications of fiber optic lighting recently in museums, where it is used as a source of âcoldâ light to protect delicate artwork. Fiber optic lighting is easily directed and focused, allowing even small objects to be brilliantly lit.