Sentences with phrase «narrow beam of light»

The operator can focus the narrow beam of light emitted by the laser on the cancer to vaporise it.

The team monitored the passage of light through the waveguide using a near - field scanning optical microscope and confirmed that a narrow beam of light successfully passes through the waveguide forwards, but that the wave's symmetry breaks down when traveling backwards2.

Holonyak's team at the University of Illinois at Urbana - Champaign devised a transistor that is also an ultratiny laser, producing a narrow beam of light simultaneously with electrical current.

Not exact matches

This little gadget can make a Wyatt Earp out of an aged grandmother or a ten - year - old, for it sends a very narrow, concentrated beam of red light to the target.

Many dolphins and whales seem to be able to narrow or widen the beam at will by deforming a lump of fat in their forehead, known as the melon, the way a glass lens can shape a cone of light.

The narrow beams are seen as flashes of light when they sweep across our line of sight.

When a beam of light is shone through two narrow holes in a screen, the light waves leaving the holes spread out like ripples on a pond.

The device makes use of a phenomenon called electromagnetically induced transparency, in which a laser beam can render opaque clouds of atoms temporarily transparent to a narrow wavelength of light.

In the early 19th century, the English physicist Thomas Young passed a beam of light through two narrow slits in a screen, and demonstrated the wave - like properties of light.

One dramatic consequence is that some of the star's material, stripped from the star and collected around the black hole, can be ejected in extremely narrow beams of particles at speeds approaching the speed of light.

That might sound a little counter-intuitive because lasers are very narrow when they are first emitted, but if that light travels across many light - years that beam widens significantly, and so the beam width can be on the order of tens of millions of kilometers across or more, and so any planet lying within that beam would be unable to see our transit.»

The blue / white narrow beam indicates the small area of the DLA gas cloud probed by quasars, the wider red cone of light indicates the large area of the DLA probed by galaxies, which is a 100 million-fold increase in area.

As such if you take a flood light and you put a reflector that narrows its beam you end bringing (reflecting) more light in a narrower cone increasing its flux instead of wasting it in directions you are not interested in.

As the vehicle accelerates, the beam of light narrows to help eliminate the glare off signs or other distractions.

Yellow triangles rise, narrow as spires, and fall like beams of light against city darkness.

These biometric rhythms are translated and projected as pulses of narrow - beam light that will move sequentially down row of spotlights placed along the perimeter of the lawn as each consecutive participant makes contact with the sensors.

Reflector bulbs, an incandescent subgroup, have a narrow, controlled beam that projects double the amount of light of typical filament bulbs.