Examples from the Web for focal
For us it was clear that China should be the focal point for a documentary on the subject of Internet addiction.China Doesn't Want You to See the Internet Addiction Film 'Web Junkie'|Shosh Shlam and Hilla Medalia|August 9, 2014|DAILY BEAST
The Lenin statue has now become the focal point of protests for Russia, and against the ‘fascists’ in Kiev.
From Sally Draper to Arya Stark, teenage girls provide a focal point within the prestige television narrative.‘Mad Men,’ ‘Game of Thrones,’ ‘The Americans’: Reading Prestige TV Dramas as YA Fiction|Alyssa Rosenberg|April 10, 2013|DAILY BEAST
In 1981, Juan Carlos was the focal point of resistance to an attempted military coup.Engulfed by Scandal, Could The Spanish Royal Family Fall?|Tom Sykes|April 4, 2013|DAILY BEAST
Aleppo remains a focal point, as both sides appear to be locked down for a bitter fight.‘We’re at the Last Step’ Before a Humanitarian Crisis in Aleppo|Mike Giglio|September 10, 2012|DAILY BEAST
An important property is: the difference of the focal distances of any point on the curve equals the transverse axis.
The order of the focal surface is 2m(n − 1) − 2r, and its class is m(m − 1) − 2r.
Thus if the aperture is one eighth the focal length, it is marked f/8, if a sixteenth f/16, and so on.The Barnet Book of Photography|Various
The total movement of the half-object glass is double the distance between the star images in the focal plane.History of Astronomy|George Forbes
The point at which the skull is opened is determined by the seat of the injury and the focal brain symptoms.