In its bulk (non-nanoscale) form, gallium nitride
emits light in the blue or ultraviolet range.
Their centerpiece is a DFB (distributed feedback) laser that
emits light in an extremely narrow wavelength or frequency region.
Plasma at these temperatures
emits light in hard X-rays, which are notoriously difficult to detect.
Deuterium, helium, and lithium nuclei each absorb and
emit light in a unique way, allowing scientists to point telescopes at I Zwicky 18 and determine the abundances of ancient nuclei very accurately.
«What we can observe is the gas itself, because the molecules are excited by the heat from the stars and therefore
emit light in the infrared and microwave range.
With this technology, researchers can be selective about which neurons they engineer to be responsive, and an optical implant can
emit light in a variety of patterns, allowing more precise control over neural circuits.
Now that Winget has performed more than 30 simulations, astronomers can start using his measurements of how hydrogen plasmas absorb and
emit light in the lab to make sense of actual white dwarfs.
They are crystalline powders that absorb energy from blue or near - UV light and
emit light in the visible spectrum.
Auroras
emit light in colors across the visible spectrum, but just a few dominate, with green being the most common color.
They result from the interaction between Earth's magnetic field, or magnetosphere, and energized particles from the solar wind that
emit light in the upper atmosphere.
«It will reveal the first objects to
emit light in the universe, explore the mysteries of dark energy and dark matter, and identify potentially habitable planets in the Earth's galactic neighborhood.»
Black phosphorus can absorb and
emit light in the visible through infrared spectrum, which is useful for sensors, communications and other applications.
And OLEDs
emit light in all directions.
Unlike LEDs, which
emit their light in the form of points, OLEDs light up over their full surface with a homogeneous effect.
CO2 and H2O absorb and
emit light in a narrow band of the spectrum corresponding to the current mean temp of Earth.
That is, the limitation of the headlight power to
emit light in a longer distance is a major problem to the visibility in driving at night.
Not exact matches
The screen is also the first from Apple to use organic
light -
emitting diode (OLED), instead of the liquid - crystal display that Apple has used
in all other iPhones, including the iPhone 8.
The tiny sensors, which consist of infrared
light -
emitting diodes (LEDs) coupled with a sensitive
light detector, measure infinitesimal gradations
in light in human tissue, due to changing blood volume
in the microvasculature as blood circulates through the body — a process that follows
in rhythm with the beating of the heart.
A study released
in November of 12 participants who spent two weeks
in a Boston sleep - research lab discovered that using
light -
emitting e-reader devices can have negative effects on sleep quality.
While TV purists take solace
in the emergence of organic
light -
emitting diode (OLED) TV displays, plasma takes its place among Betamax, HD - DVD, Sega and other arguably superior formats that eventually lost out to consumer demands for convenience and a low price.
With more than 225 employees
in three countries, Lumenpulse works with architects, electrical engineers and
lighting designers to develop specification
light -
emitting diode, or LED,
lighting for commercial, institutional and urban applications.
The lenses support the eye's effort
in focusing at ultra - near distances that are typical of handheld devices by filtering out «harmful blue - violet
light emitted by digital screens.»
That screen will also likely use organic
light -
emitting diode (OLED) technology, rather than the liquid crystal screens Apple has used
in all previous iPhones.
The world's largest smartphone maker is creating two models using organic
light -
emitting diode (OLED) screens for 2017
in modest quantities to test market reaction, the Korean tech site ET News reported on Thursday citing anonymous sources.
Scientists note that «the use of
light -
emitting devices immediately before bedtime is a concern because of the extremely powerful effect that
light has on the body's natural sleep / wake pattern and how that may play a role
in perpetuating sleep deficiency.»
Its wavelengths are shorter than any other color
in the visible
light spectrum,
emitting higher energy levels than any other color your eyes can perceive.
It flickers
in your fluorescent and LED
lights in your home, it is
emitted from your digital television screen, you're exposing your eyes to it every time you check Facebook on your phone, and it's bombarding your eyes all day at work while you stare at your computer.
The iPhone X, Apple's first smartphone equipped with an organic
light -
emitting diode display, has failed to catch on globally — something many put down to its hefty price, which starts at $ 999
in the U.S.
Excelitas makes products such as
light -
emitting diodes (LEDs) and flash lamps which are used
in applications ranging from medical
lighting to aerospace and defense equipment.
I believe that the sun is powered by the nuclear fusion of hydrogen
in to helium, because the spectrum of the
emitted light is exactly as predicted by theory and tested by experiment on earth.
The resulting theory, though founded on quite different principles and developed
in an independent fashion from Einstein's theory, nevertheless gives predictions that are identical to the latter's, within observable limits, for each of the four classic tests of gravitational theories (i.e., precession of the perihelion of Mercury, redshift of
light emitted by a massive body, the bending of
light - beams
in a strong gravitational field, and the apparent slowing of the speed of
light propagation near massive bodies).
Hansen's assessment is simple: we need, as a planet, to be
emitting less carbon dioxide inside of ten years — an enormous task given that China and India are finally beginning to use power
in appreciable quantities (and not for luxuries but for the second
light bulb or first refrigerator
in a house).
When ATP comes into contact with the liquid - stable luciferase / luciferin reagent
in the SystemSure's testing swap,
light is
emitted in direct proportion to the amount of ATP present.
In our circuit we use a component called a
Light Emitting Diode (LED).
This walker includes toys that
emit sounds and
lights, and as they are so colorful and entertaining, you may rest assured that your child is going to have great fun while sitting
in it.
Battery operated toys,
lights that flash, sounds that are
emitted when buttons are pressed, real engine noises - you name it - have all been created and sold
in a bid to make little ones happy.
In addition to talk - back features, this monitor allows you to play a lullaby or emit a soft glow via the night light option in order to help your baby fall asleep comfortabl
In addition to talk - back features, this monitor allows you to play a lullaby or
emit a soft glow via the night
light option
in order to help your baby fall asleep comfortabl
in order to help your baby fall asleep comfortably.
This humidifier uses ultra-violet
light technology to kill bacteria, mold, fungus, and virus
in the water which is then absorbed by the wicking filter before
emitting an invisible mist.
In recent months, state agencies have been approving millions of dollars in grants and loans for tech parks outside of Utica and Buffalo to help them attract manufacturers from the semiconductor industry, which covers everything from computer chips to solar panels and light emitting diode
In recent months, state agencies have been approving millions of dollars
in grants and loans for tech parks outside of Utica and Buffalo to help them attract manufacturers from the semiconductor industry, which covers everything from computer chips to solar panels and light emitting diode
in grants and loans for tech parks outside of Utica and Buffalo to help them attract manufacturers from the semiconductor industry, which covers everything from computer chips to solar panels and
light emitting diodes.
When the atom drops from the higher to the lower energy state, it
emits a photon, or
light particle,
in the form of a radio wave 21 centimeters long.
First theorized
in the 1930s, dark matter does not
emit any
light, betraying its existence solely through gravity.
Infrared
light is a good probe of the magnetic field because stronger magnetic fields change the way
light is
emitted in that range.
These bioluminescent dinoflagellates
emit beautiful blue
light at night when swirled
in the dark.
The two neutron stars converged
in the galaxy NGC 4993, 130 million
light - years from Earth,
emitting gravitational waves
in the process (SN: 11/11/17, p. 6).
This makes the gas
emit light over a range of wavelengths, including the visible, and depending on the atoms which make it up, we see different colours
in the nebula.
In addition to
emitting visible
light, the stars also gave off ultraviolet (UV) radiation, which split the neutral hydrogen it encountered into electrons and protons — ionizing it once again, and thereby launching what researchers call the «epoch of reionization.»
When driven with electrical current, electrons and positively charged holes become confined
in the dots and recombine to
emit light — a property that can be exploited to make lasers.
Factoring
in all the ordinary matter we can not see — contained
in exoplanets, galactic gas clouds, and black holes, none of which
emit light — still isn't enough to make up the difference.
These fluctuations correspond neatly to the 11 - year solar cycle,
in which the Sun's rotation gradually winds up its magnetic field into contorted coils, giving rise to flares and sunspots that
emit ultraviolet and X-ray
light.
The hydrogen atoms fuse together into heavier and heavier elements and
in the fusion process the star
emits radiation
in the form of
light, that is, energy.