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This translates to a hoppus foot being equal to 1.273 cubic feet (2,200 in 3; 0.0360 m 3). The hoppus board foot, when milled, yields about one board foot. The volume yielded by the quarter-girth formula is 78.54% of cubic measure (i.e. 1 ft 3 = 0.7854 h ft; 1 h ft = 1.273 ft 3). [42]
The placement consisted of 10,251 cubic yards of concrete placed in 58.5 hours using two concrete pumps and two dedicated concrete batch plants. Upon curing, this placement allows the 50,180-square-foot (4,662 m 2 ) cofferdam to be dewatered approximately 26 feet (7.9 m) below sea level to allow the construction of the Inner Harbor Navigation ...
Also in 1908, Thomas Edison experimented with pre-cast concrete in houses in Union, N.J. [37] In the US, after World War One, the long curing time of at least a month for Rosendale cement made it unpopular for constructing highways and bridges, and many states and construction firms turned to Portland cement. Because of the switch to Portland ...
The gram per cubic centimetre is a unit of density in the CGS system, and is commonly used in chemistry. It is defined by dividing the CGS unit of mass, the gram, by the CGS unit of volume, the cubic centimetre. The official SI symbols are g/cm 3, g·cm −3, or g cm −3.
Tupper's self-referential formula: A formula that draws itself! Ulam spiral: A bored mathematician discovers an unusual numerical pattern while doodling. Umbral calculus: A mathematical method successfully used for over 100 years, despite the notable limitation of no one on Earth knowing exactly how or why it worked. Unexpected hanging paradox
The solid or skeletal density of activated carbons will typically range between 2000 and 2100 kg/m 3 (125–130 lbs./cubic foot). However, a large part of an activated carbon sample will consist of air space between particles, and the actual or apparent density will therefore be lower, typically 400 to 500 kg/m 3 (25–31 lbs./cubic foot). [49]
In addition, as of January 2011 India had approximately 38 trillion cubic feet (Tcf) of proven natural gas reserves, the world's 26th largest reserve. [319] The United States Energy Information Administration estimates that India produced approximately 1.8 Tcf of natural gas in 2010 while consuming roughly 2.3 Tcf of natural gas.
If there are too many protons, some can turn into neutrons by beta decay, and vice versa. A proton can change into a neutron by emitting a positron (beta plus), and a neutron can change into a proton by emitting an electron (beta minus). —Keenan Pepper 03:59, 1 December 2005 (UTC) THE SUN DOES NOT EXIST!!!!!