So both have a spherical shape, allowing them to collect and concentrate waves from offaxis sources without focusing on a point.
The device, called Blow-Jet, consists of a narrowing structure that concentrates waves and transforms their energy from potential and kinetic to kinetic, turning the oscillatory flow into an intermittent jet that can be easily guided to an impulse turbine.
Moreover, he said, the reflection tends to concentrate the wave front into a narrower beam, concentrating energy as the waves propagate.
From a grassy knoll on the Stanford campus, the parabolic reflector of this radio telescope concentrates electromagnetic waves (radio waves) into an aluminum collecting horn built by SRI's Mike Cousins that Linscott calls "the jewel in the crown". From there, the signal is fed into a transducer, says Cousins, site manager of the Dish.
The facial disc, which acts as a parabola to direct and concentrate sound waves toward the ears, is not as well developed as in the Great Gray Owl.
These photographs concentrate on waves and sky, horizon, pattern and color (though the majority are black and white, and oddly, they are the most beautiful).
Sitting so close to the water, you can find yourself concentrating on waves, or on actor-balance and breath-holding issues, rather than the overall storytelling.
They worked by concentrating sound waves to a central point, and were manned by trained operators listening through a stethoscope to distinguish between the different sounds being picked up and identify potential threats up to 25 miles away.
Then, concentrated radio waves are directed at the tumors.
