Nevertheless, the first such ring was observed in 1987. Now, a group of astronomers led by Tommaso Treu of the University of California, Santa Barbara, have seen two concentric rings.
The "hill" around the center was only a meter tall now and shrinking rapidly as the concentric rings eased back to the floor of the room.
Among those patterns there are bead-shape ones arranged in a circle, individual concentric rings, diamond rings, as well as sets of stacked rings, rings with radiation.
You learn in grade school that each ring in a tree represents a year. But there's more information hidden away in these concentric rings.
Dr Yabe's trick is to use relatively small Fresnel lenses-transparent and relatively thin planar lenses made up of concentric rings of prisms.
This paper focuses on the concentric ring fractal array of the low side lobe characteristics in fractal antenna arrays.
Its regular grid pattern is clearly visible at image upper left; concentric rings of major roadways around the city have been added as the metropolitan area has expanded.
WIDE SHOT, moving in across the concentric rings of people, all plugged-in and softly chanting.
Track: (1) One of the concentric rings of a dise along which data is stored. (2) Refer to the space between letters in the computer typesetting program. A "loose track" means letter spacing, while a "tight track" means kerning.
Results:When intussusception appeared as "multiple concentric rings", the reduction rate was 100%.
