Sentences with phrase «average densities of»

States like California and New York have high average densities of 251 and 420 people per square mile because of the millions of people crammed into major cities.

There were 4,322 housing units at an average density of 121.7 per square mile (47.0 / km ²).

There are 35,030 housing units at an average density of 58 / km (152 / mi).

There were 64,900 housing units at an average density of 61 per square mile (24 / km ²).

The shape of the universe can be determined by measuring the average density of matter within it, assuming that all matter is evenly distributed, rather than the distortions caused by «dense» objects such as galaxies.

Before we discovered that the universe's expansion was accelerating, predicting our cosmic fate seemed straightforward: Measure the slowing of the expansion, the average density of matter and energy, or the shape of the universe.

We now know the shape of the universe (flat) and the average density of matter and energy (critical density), and yet we don't know what will happen.

Here the degree of aggregation in the distribution of 1768 tree species is examined based on the average density of conspecific trees in circular neighborhoods around each tree.

But one afternoon, the whales all converged on one place where there was a really high density of prey — a 40 - meter - thick swath of water with 107 grams of krill per cubic meter, as opposed to the average density of 66 grams per cubic meter, Cade reported at the meeting.

Having the mass and radii of a planet allows the astronomers to calculate other features such as a planet's average density, «and once you know the average density of a planet, then you can start to say whether it's rocky or not,» Kane explained.

The electron density there is about four times the average density of the conduction electrons in copper wire.

Finally, they calculated the population's turnover rate to estimate an average density of 50 clams per square meter over the last millennium — a number that contrasts with fieldwork earlier this year that yielded just three clams per square meter, they report in the December issue of Geology.

As the universe expands, the average density of matter decreases; therefore, the density was much higher in the past, in particular exceeding nuclear levels within the first microsecond of the big bang.

On a larger scale, the Sun belongs to another irregularity — our Galaxy, an aggregate of stars with a density about a hundred thousand times greater than the average density of matter in the Universe.

The overlaid contours represent the average density of the dense gas.

Having so much mass packed within a ball on the order of 20 km (12 miles) in diameter, a neutron star has a density that can reach that of nuclear values, which is roughly 100 trillion (1014) times the average density of solar matter or of water.

Near the Sun the average density of interstellar gas is 10 − 21 gm / cm3, which is the equivalent of about one hydrogen atom per cubic centimetre.

We conduct an asteroseismic analysis of the Kepler photometry and conclude that the star has an average density of 1.652 + / -0.006 g / cm ^ 3.

A metric I would like to see is the average density of the Greenland ice sheet and from that infer an average temperature.

The average density of measurements by the NCGCP in the accumulation zone of each glacier ranges from 180 - 300 points km2 (Pelto, 1996; 2000).

We started by calculating the average density of a bag of trash.

In 2010 the US Census Bureau reported that there were 6,534 housing units at an average density of 1,348.0 per square mile, of which 3,974 were owner - occupied, and 2,110 (34.7 %) were occupied by renters.

Not exact matches

The rate of entrepreneurs is above the national average and so is the startup density, making it clear entrepreneurs are flocking to Colorado's capital city.

The city's startup density is well above the national average, and 80 percent of small businesses are started from opportunity, not necessity.

The startup density is well above the national average, and the 85.18 percent opportunity share of new entrepreneurs indicates new small - business owners are driven by desire, not need.

The rate of new entrepreneurs surpassed the national average, but the startup density is among the lowest on the list.

The kernel density distributions make it immediately apparent that wage premia, which focus on differences in average wages, miss much of the story.

The level of private building approvals in the March quarter was 12 per cent above the average level in 1995/96, with growth concentrated in building approvals for medium - density dwellings rather than houses.

Although the latest readings are suggestive of some easing, largely driven by a sharp correction in medium - density approvals, total private - sector approvals remained at a high level in the December quarter as a whole and exceed the average of the past two years (Graph 29).

While this may be alarming to many shavers as an excessive number of hairs, the fact that the knot of the average shaving brush contains thousands of individual badger hairs means that this very small percentage will likely cause no noticeable effect on the brush's density or performance qualities.

[25] Lemaitre's famous differential equation for cosmic expansion is: R [2] = C / R + 1 / 3AR [2]- k where R is the scale factor for cosmic expansion which is proportional to the radius of the universe when that radius has meaning; C > 0 and proportional to the average present - day density of non-relativistic matter in the universe; cosmological constant, - C [0] < A < C [0], which serves to create a cosmic repulsion that keeps galaxies from being drawn together by gravity when it is positive and adds to the attractive force of gravity when it is negative; and spatial curvature, k = -1,0, +1.

Stocking densities are lower than average ensuring that birds have plenty of space to express natural behaviour.

Reduced Calorie Formula - while most infant formulas have a standard 20 calories per ounce, many Similac formulas have been reformulated to 19 calories per ounce to «better match the average caloric density of breast milk.»

Such calculations use internationally agreed conventional conversion factors, which are generously rounded values that roughly approximate the average energy density of a large number of different food samples.

Although one might imagine that a tropical forest is very tightly packed, the scientists came to a surprising conclusion: the packing density of the tree crowns, which averages 15 to 20 %, is astonishingly low.

Intergalactic space (the space between galaxies) is filled with a tenuous gas of an average density less than one atom per cubic metre.

Census tracts within a nonmedical exemption cluster were 2.5 times more likely to be within a pertussis cluster, even after accounting for population characteristics including racial demographics, population density, household income, average family size, percentage of residents with a college degree and location within a metropolitan area.

On average 38 percent of suitable habitat has already been lost to agriculture in this region, where some of the highest human population densities occur in Africa.

If Earth were a perfect sphere, perfectly uniform in density and covered to a uniform depth with ocean, the geoid — a word coined by geologists to refer to an imaginary plane located at the average level of the sea's surface — would be a perfect sphere as well.

In January 2005, for example, Ohio State University geophysicist Ralph von Frese and his colleagues noticed a concentration of higher - than - average - density material in the rock about a mile under the surface of the East Antarctic ice sheet.

Marsh Tits breed at very low densities, and on average one has to search five to seven hectares of this forest to find a single breeding cavity.

During the 10 - year follow - up, the bone density of all study participants weakened by an average of 4 %; however, the difference between the satisfied and the unsatisfied was as much as 52 %.

According to the new study, the mean weighted latitude of density of Finnish bird populations has shifted northward by an average of 45 km, as predicted.

Astronauts exercise, on average, two hours a day on the station to counter effects of microgravity on the human body, which include decreased bone density and muscular atrophy.

(Population densities of hunter - gatherers are rarely over on person per ten square miles, while farmers average 100 times that.)

In contrast, Stitt notes, «the best drug, right now, will increase bone density only an average of 3 percent per year.»

With a planet's mass and radius in hand, astronomers can calculate its average density, which gives them a handle on what it is made of.

The average carbon density for Peruvian rainforests is 99 metric tons of carbon per hectare, with the maximum density of 168 metric tons of carbon per hectare.

The odd world, whose density is on average at least 23 grams per cubic centimeter (or about twice that of lead), is probably crystalline and possibly largely composed of ultradense diamond.

Data from the substudy presented today illustrate that bone mineral density decreased a measurable but clinically insignificant amount over the course of a year in young adult males and transgender participants with an average age of 24 taking a protective amount of PrEP.