They're actually singing these densities to you with higher pitches mapped to higher densities.

They have very different densities.

Plastics have overlapping densities over a very narrow range.

Optical images of observations were originally drawn by hand.

Interactive tool to study and simulate optic assemblies

The stop limits the effect of optical aberrations.

The densities of the different allotropes vary from 16.00 g cm3 to 19.86 g cm3.

And using both this technique and other optical techniques, we think we can make those diagnostics.

The next category is scattered fibroglandular densities, followed by heterogeneously dense and extremely dense.

Density criteria range from above 3.5 g cm3 to above 7 g cm3.

Well, this map in the sort of redder, yellower colors are the places with the highest densities of slavery.

You can imagine that then maybe you can use a pure protein to guide light, and so we've made optical fibers.

WF PC was a high resolution imaging device primarily intended for optical observations.

Optical configurations There are two basic configurations of the conventional optical microscope the simple microscope and the compound microscope.

These spectral lines, which can only be seen in very low density gases, are called forbidden lines.

The highest densities were recorded in the Accra Metropolitan Assembly, with an overall average of 69.3 persons per hectare.

In 1898 he started as a student of Frankland financed by a Forster Scholarship his work concerned optical properties of tartaric acid compounds.

In some areas with good habitat, these salamanders are so numerous, their population densities may surpass 1,000 individuals per acre.

Despite this the development committee decided to keep the same name but switch to the British English spelling fibre for the standard.

The rear lights incorporate the design as in those of the sedan, but were adapted to the different shape of the body.

Op art, also known as optical art, is a style of visual art that makes use of optical illusions.

This sophisticated agriculture allows Ibb to support an extremely dense rural population, with densities of up to 500 people km² being normal in the wettest areas.

Intermediate members The intermediate members of the plagioclase group are very similar to each other and normally cannot be distinguished except by their optical properties.

They are sometimes associated with larger current densities, and the interaction with the magnetic field can form a magnetic rope structure.

The mean velocity of these particles is about 145 km s, which is well below the solar escape velocity of 618 km s.

Many mechanical, electrical, magnetic, optical and chemical properties of solids are the direct consequence of Pauli exclusion.

Movement and fronts A weather front is a boundary separating two masses of air of different densities, and is the principal cause of meteorological phenomena.

The full IEEE 1394b specification supports data rates up to 3200 Mbit s (i.e., 400 megabytes s) over beta mode or optical connections up to in length.

One test showed that optical fibers could provide video and audio links between the flight deck and the payload bay.

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Nonetheless, during the first three years of the Hubble mission, before the optical corrections, the telescope still carried out a large number of productive observations of less demanding targets.

The latter led to levitating and positioning clouds of atoms or even small biological samples in an optical trap or optical tweezers by laser beam.

Now, that's a variety of things, from recently deceased bodies, to a skeleton that was used by student radiographers to train in taking X rays of the human body, at different densities.

City governments used infrastructure investments and urban planning to distribute work, housing, green areas, retail, schools and population densities.

It is for this reason that the city of São Bento presents a good growth rate in order to have one of the highest population densities in the backlands of Paraiba.

It is easy for the impact ejecta to be lost from the satellites into space because the satellites' surfaces lie fairly close to the edge of their Roche spheres due to their low density.

Their densities range from over a million particles per cm³ in the ultra compact H II regions to only a few particles per cm³ in the largest and most extended regions.

The refractive index of a medium is calculated by dividing the speed of light in a vacuum by the speed of light in that medium.

And finally, I'll give you one last example of free perhaps the most powerful of all. I mentioned fiber optics their abundance tends to make things free.

technical progress , changes in the most relevant harmonised European standards or international specifications , and new scientific findings concerning occupational exposure to optical radiation .

Speculation about life on Mars increased in the late 19th century, following telescopic observation of apparent Martian canal which soon, however, turned out to be optical illusions.

In the visible bands, adaptive optics can only correct a relatively small field of view, whereas HST can conduct high resolution optical imaging over a wide field.

The shock waves from stellar wind also play a large part in stellar formation by compacting the gas clouds, creating density inhomogeneities that lead to gravitational collapse of the cloud.

The simple formula for the Hall coefficient given above becomes more complex in semiconductors where the carriers are generally both electrons and holes which may be present in different concentrations and have different mobilities.

Physicists showed in the 1920s that in gas at extremely low density, electrons can populate excited metastable energy levels in atoms and ions, which at higher densities are rapidly de excited by collisions.