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Focus_.
Focus
Lenses and mirrors
The focus of a lens or parabolic mirror is the point onto which collimated light parallel to the axis is focused. The focus of an elliptic mirror is either of two points such that light from one converges on the other. The focus of a hyperbolic mirror is either of two points such that light from one is reflected as if it came from the other.
Geometry
In an ellipse, foci are the two "off-center" points.
See also: Focus (band), focus (computing), Ford Focus (automobile).
The above article is adapted from from Wikipedia All Wikipedia article text is available under the terms of the GNU Free Documentation License
The Discipline of Market Leaders: Choose Your Customers, Narrow Your Focus, Dominate Your Market by Michael Treacy
The Power of Focus : How to Hit Your Business, Personal and Financial Targets with Absolute Certainty by Jack Canfield
Creative Correction: Extraordinary Ideas for Everyday Discipline (Focus on the Family Book) by Lisa Whelchel
View from the Cliff: A Course in Achieving Daily Focus by Lynn Weiss
Hymns for a Kid's Heart (Great Hymns of Our Faith) by Bobbie Wolgemuth
Ultimate Guide to Mental Toughness: How to Raise Your Motivation, Focus and Confidence Like Pushing a Button by Daniel Teitelbaum
Grocery Revolution : The New Focus on the Consumer by Barbara E. Kahn
Butterflies of North America (Kaufman Focus Guides) by Jim P. Brock
Unleash the Warrior Within: Develop the Focus, Discipline, Confidence and Courage You Need to Achieve Unlimited Goals by Richard J. Machowicz
The Focus on the Family Complete Book of Baby and Child Care by Paul C. Reisser
The Power of Focus for Women : How to Create the Life You Really Want with Absolute Certainty by Fran Hewitt
Focus : The Future of Your Company Depends on It by Al Ries
Photography: Focus on Profit by Tom Zimberoff
Be the Best: A Focus on Individual Responsibility for Achieving by Harvey Alston
Creating a Self-Tuning Oracle Database: Automating Oracle9i Dynamic SGA Performance (Oracle In-Focus series) by Donald K. Burleson
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