Search results
Results from the WOW.Com Content Network
The acre-foot is a non-SI unit of volume equal to about 1,233 m 3 commonly used in the United States in reference to large-scale water resources, such as reservoirs, aqueducts, canals, sewer flow capacity, irrigation water, [1] and river flows. An acre-foot equals approximately an eight-lane swimming pool, 82 ft (25 m) long, 52 ft (16 m) wide ...
The density of osmium is slightly greater than that of iridium; the two are so similar (22.587 versus 22.562 g/cm 3 at 20 °C) that each was at one time considered to be the densest element. Only in the 1990s were measurements made accurately enough (by means of X-ray crystallography ) to be certain that osmium is the denser of the two.
So a ball made of a less dense material like (perhaps)_Osmium - which is still quite a bit denser than gold. Osmium is 22 times denser than water - so an osmium sphere would have about 4.7 times less surface area than a water balloon of the same mass. Since the drag force is proportional to the area, you'd have 4.7 times less drag force.
— "Values ranging from 21.3 to 21.5 gm/cm 3 at 20 °C have been reported for the density of annealed platinum; the best value being about 21.45 gm/cm 3 at 20 °C." 21.46 g/cm 3 — Rose, T. Kirke. The Precious Metals, Comprising Gold, Silver and Platinum .
Osmium is denser by about 0.1%. See iridium#Characteristics which discusses the issue and provides some references. --Itub 16:50, 23 September 2008 (UTC) I updated the ranking and densities of osmium and iridium as per their respective articles. Unfortunately I suspect the degree of accuracy required to split these two elements means that the ...
The Palisades Fire erupted on Tuesday, Jan. 7, and by 3 a.m., the three 1-million-gallon water tanks in Pacific Palisades ran dry due to "extreme demand," officials said.
Osmium is the densest known element at standard conditions for temperature and ... Density of liquid water at 1 atm pressure Temp. (°C) [note 1] Density (kg/m 3) −30:
By 2050, California is expected to lose between 4.6 and 9 million acre-feet of its annual water supply. In other words, by 2050 at the latest, Californians would lose access to a volume of water ...