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On June 18, NSA Director Alexander said in an open hearing before the House Intelligence Committee of Congress that communications surveillance had helped prevent more than 50 potential terrorist attacks worldwide (at least 10 of them involving terrorism suspects or targets in the United States) between 2001 and 2013, and that the PRISM web ...
The Sénarmont prism is air spaced, unlike the Wollaston and Rochon prisms. These prisms truly split the beam into two fully polarized beams with perpendicular polarizations. The Nomarski prism is a variant of the Wollaston prism, which is widely used in differential interference contrast microscopy .
How a human looks blinking in upside down goggles. Under normal circumstances, an inverted image is formed on the retina of the eye. With the help of upside down goggles, the image on the retina of the observer's eyes is turned back (straightened) and thus the space around the observer looks upside down.
Before and After is a 1996 American crime drama film based on Rosellen Brown's 1992 novel of the same name about two parents who must deal with the after effects when their son is accused of murder. The movie was directed by Barbet Schroeder and starred Meryl Streep as Dr. Carolyn Ryan, Liam Neeson as Ben Ryan, Edward Furlong as Jacob Ryan, and ...
Soon after, she exits the stage once more after thanking everyone for attending and introducing her band members. For the encore, an interlude called "Prism-Vision" is played, where the audience is encouraged to wear special rainbow-star diffraction glasses picked up before the show to magnify the visual effects of the performance.
A 2003 study surveyed 41 participants around the time of their vacations. Subjects predicted their emotions before vacating, reported their emotions during (in-situ), and recalled their emotions after. It indeed found a rosy effect as subjects recalled (and predicted) their positive emotions being stronger than they actually were.