Sentences with phrase «by dust particles»

Some is scattered by dust particles — when light rays are split into many light rays that move in different directions b. Scattering separates white light into its» colors.

Some is scattered by dust particles — when light rays are split into many light rays that move in different directions

He and his collaborators have theoretically predicted that, around a young star radio waves scattered by the dust particles should carry unique polarization features.

That dimming is best explained by dust particles less than a micrometer in size, Boyajian says.

Not exact matches

Why is a «living» body organized by cosmic particles any more «valuable» than a dead body organized by random dust?

science «It's a bit like learning the secrets of the family that lived in your house in the 1800s by examining dust particles they left behind in cracks in the floorboards»

This system also protects the milk from contamination by bacteria, dust or other particles.

Every day, numerous cars and trucks are wearing on Norway's almost one hundred thousand kilometers of road: Asphalt wear on the tires, the tires wear on the asphalt, exhaust flows out from the vehicles and all is shrouded by road dust, until a rainfall cleanses the air, leaving all the dust and particles in the ditch.

Soot particles, dust lifted up by the wind or sea spray account for only some of the particles in the atmosphere.

Dust devils might affect Mars's atmosphere by whipping particles to high altitudes, where the fine aerosols help control the planet's dry climate.

The phenomenon can be understood through the action of water molecules, which condense to form liquid droplets by sticking to particles like dust and pollen.

Many young stars known to host planets also possess disks containing dust and icy grains, particles produced by collisions among asteroids and comets also orbiting the star.

The ring's dust and ice particles are tugged by the moons» gravity.

Composed of dust particles and debris, the rings are formed by the star's gravity tearing apart asteroids that came too close.

It found that small particles existing at 150 km or higher above Earth's surface could be knocked beyond the limit of Earth's gravity by space dust and eventually reach other planets.

Clouds of electrons created by ionised gas in the beam chamber and microscopic dust particles — playfully known as unidentified falling objects, or UFOs — are interrupting the beams and making it harder to get the LHC running consistently.

In January the Stardust spacecraft cruised by Earth and tossed down a 95 - pound canister packed with comet particles and interstellar dust, souvenirs scooped up during its seven - year journey past comet Wild 2.

In a paper published online today by Science, a group reports the growth of dust grains into significantly larger particles in the circumstellar dust and gas disks of the Orion Nebula.

A computer model developed by the team suggests that the grains must reach the size of boulders within a million years; otherwise, the dust particles and circumstellar gases will be blown apart by fierce ultraviolet radiation from the nebula's hottest, most massive young stars.

Research led by the University of York has highlighted the potential cancer risk in non-smokers — particularly young children — of tobacco smoke gases and particles deposited to surfaces and dust in the home.

However, there were other possible sources of water: interplanetary dust particles produced by cometary activity and asteroid collisions, icy rings, or one of the 60 Jovian satellites.

Much of the dust deposit east of the Rockies arrived in the last ice age, which ended some 11,000 years ago, when particles that had been ground up and transported by glaciers were deposited by meltwater streams.

Stardust's cache was sanitized by intense heat as comet particles collided at 14,000 miles per hour with foamy aerogel in the probe's dust collector.

Propelled by the force of the eruption, gray and black particles of ash, dust, and soot rose high into the atmosphere, some as high as twenty - five miles above the crumbling peak of the mountain, where the winds began to spread them in all directions.

It showed that the young sun was surrounded by a disk of gas and dust so agitated that particles in the hot, inner regions might be flung out to the cold, distant zone where comets formed.

For example, another research team has already analyzed the gas and dust emitted by Wild 2, and astronomers look forward to January 2006 when a Stardust capsule containing thousands of comet dust particles will return to Earth for more thorough investigation.

Most non-photosynthetic plants have very small seeds that can be dispersed by the wind like dust particles.

They report that this architecture allows compatibility between silicon and natural graphite and addresses the issues of severe side reactions caused by structural failure of crumbled graphite dust and uncombined residue of silicon particles by conventional mechanical milling.

«They appear to invade the host either by direct inhalation of contaminated dust particles or through soil contaminated wounds» (Topley and Wilson again).

Evidence for interstellar origin of seven dust particles collected by the Stardust spacecraft

By examining infrared data taken earlier by the Spitzer Space Telescope, they discovered a swath of dust particles ranging in size from 0.1 to 20 microns (finer than a split hair) that added up to the mass of a large asteroid and, based on their warmth, were strewn about 1.8 Earth — sun distances from the staBy examining infrared data taken earlier by the Spitzer Space Telescope, they discovered a swath of dust particles ranging in size from 0.1 to 20 microns (finer than a split hair) that added up to the mass of a large asteroid and, based on their warmth, were strewn about 1.8 Earth — sun distances from the staby the Spitzer Space Telescope, they discovered a swath of dust particles ranging in size from 0.1 to 20 microns (finer than a split hair) that added up to the mass of a large asteroid and, based on their warmth, were strewn about 1.8 Earth — sun distances from the star.

Radar works by sending out radio waves that reflect off particles in the atmosphere, such as raindrops or ice or even insects and dust.

The deserts of the Middle East are a large source of «mineral dust,» small particles of sand that are brought into the atmosphere by wind and thermals.

Planetary scientists expect that mixtures of dust and ice turn black after billions of years of irradiation by photons and high - energy particles from the sun, but they don't yet know the details of that composition.

«Dust particles have been shown to be efficient ice nuclei, which may influence the monsoon by changing clouds» properties,» Jin said.

Photography picks up fainter, outlying blues from light scattering off dust particles and reds emitted by hydrogen.

Typically, these particles are found in windblown or construction dust and are emitted by woodstoves, fireplaces, trash incinerators and wildfires.

Dairy farm waste, soil blown from farmlands, pesticides, industrial emissions, vehicle exhaust and dust particles kicked up by cars and the big rigs ferrying produce down Interstate 5 and Highway 99 — the valley's two main arteries — have made this one of the smoggiest places in the nation.

By analyzing this data over the following six months, the researchers found that clouds that grew at the lowest temperatures required extremely high relative humidity in order for water vapor to form an ice crystal around a dust particle.

Mars» dust storms can be much taller because the Red Planet's lower gravity and thinner atmosphere make it easier for dust particles heated by the sun to rise up, Heavens says.

Dust Bowl — era storms may have worsened a concurrent drought in the region by overloading Earth's atmosphere with particles, researchers reported in 2008 in Geophysical Research Letters.

By analyzing how the random impact of atoms can distort the motion of tiny dust particles, creating a continuous zigzag motion, he showed a practical way to calculate the size of atoms.

Recent modeling along with previously published results from NASA's MESSENGER spacecraft — short for Mercury Surface, Space Environment, Geochemistry and Ranging, a mission that observed Mercury from 2011 to 2015 — has shed new light on how certain types of comets influence the lopsided bombardment of Mercury's surface by tiny dust particles called micrometeoroids.

Long before satellite sensors filled the sky, scientists like Reheis sought to identify the provenance of widely spread sediments by collecting samples of airborne dust particles and analyzing their mineral content.

Clouds form when water condenses on particles of dust, and rain falls when condensed water droplets grow too heavy to be suspended by updrafts in the atmosphere.

It would travel at a tenth of the speed of light, protect itself against impacts with dust particles and be piloted by a computer capable of controlling the craft without help from Earth.

These particles indicate the precise composition of the sun and, by extension, the cloud of dust and gas from which it and all the planets coalesced some 4.6 billion years ago.

After the dust settled, it became clear that Yukawa had discovered a deep rule about forces: they are transmitted by particles whose spin is always an integer and whose mass determines their range.

The gauntlet Juno ran at Jupiter held many chances for catastrophe: The spacecraft might have been knocked out by intense magnetic fields (at that distance, 20 times stronger than Earth's), ionizing radiation (a total dose of 265 rads — more than enough to kill a human being), dust particles from Jupiter's rings (from which the main engine was completely unshielded) or loss of power if the solar arrays were unable to reorient to the sun.

And sky glow is made worse by other forms of pollution such as dust and particles of smog, which scatter the light.