Sentences with phrase «size black particles»

«The scope of the investigation includes, but is not limited to,» the closing of the hospital's operating rooms for months after sand - size black particles began falling from air ducts, the staff member said, and has been continuing for more than a month.

Not exact matches

The grains are the size and color of black smoke particles, about four - millionths of an inch wide.

It takes a huge amount of data to describe a star, the precursor of a black hole — from macroscopic properties such as its size and temperature down to the microscopic properties of its constituent particles.

But black carbon stays in the atmosphere for only a few days or weeks, depending on the size of the particles, before the particles are flushed out through rain, snow or other forms of precipitation.

Unlike the much - maligned black smoke emitted from older diesel engines, soot emitted from gasoline direct injection engines is invisible to the naked eye because of the particles» very small size.

The several schools of quantum gravity, physicists have realized, are slowly reaching consensus that incremental violations of relativity might be detectable even outside a black hole, and without building a particle accelerator the size of the universe.

But because of the small soot particles» adverse health effects (their size allows them to enter the lungs, where they can cause respiratory distress), limiting black carbon production will have beneficial effects.

As the particle size increases other colors such as red, green, blue, brown or black may be seen.

If you're suspicious of fleas, be on the lookout for black particles the size of ground pepper on your pet's skin near the tail.

· A finding that black carbon particles increased the number of drops of water in clouds, while decreasing the size of those drops, a condition that can reduce or delay rain.