"Optical" redirects here. For the musical artist, see Optical (artist).

Optics (appearance or look in ancient Greek) is a branch of physics that describes the behavior and properties of light and the interaction of light with matter. Optics explains and is illuminated by optical phenomena.

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Inquirer Health and Science

Authorities investigating two swimmers' deaths
Thu, 02 Jul 2009 07:01:00 -0000
The waters off North Wildwood were treacherous Tuesday afternoon. The tide was going out, and the currents south of the Hereford Inlet Lighthouse were strong enough to threaten even good swimmers.
Caseworker shortage delaying food-stamp applications
Thu, 02 Jul 2009 07:01:00 -0000
More people need food stamps than ever before, but there are fewer state workers in Pennsylvania to process the claims; this may result in applicants missing out on benefits, according to anti-hunger advocates.
Fawcett death spotlights a rare, little-discussed cancer
Thu, 02 Jul 2009 07:01:00 -0000
ATLANTA - In a twist of medical fate, Farrah Fawcett has become the poster girl for anal cancer, a rare disease often linked to a sexually transmitted virus.
SEPTA to partner with Google
Wed, 01 Jul 2009 07:01:00 -0000
SEPTA has gone Google. Schedules and routes for all SEPTA trains and trolleys will be synchronized with Web-based trip-planning program Google Transit, officials announced yesterday.
Surgeon's 'cool hobby' is throwing knives
Wed, 01 Jul 2009 07:01:00 -0000
Ted Eisenberg is proud of the fact that he has a "cool job." He specializes in cosmetic breast surgery, and over the last 10 years he's made more than 4,000 women happier by making their breasts bigger, smaller, higher, or more symmetrical.
FDA panel backs cut in maximum Tylenol dosage
Wed, 01 Jul 2009 07:01:00 -0000
It is one of the world's most popular drugs, considered safe to treat fevers in children and aches and pains in pregnant women. But yesterday, the U.S. Food and Drug Administration took action aimed at making consumers more aware that acetaminophen, best known as the Johnson & Johnson drug Tylenol, can be as hazardous as it is ubiquitous.

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