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This block is one of three displacements, 302/327/350, that underwent a crankshaft bearing diameter transformation for 1968 when the rod-journal size was increased from the 2 in (50.8 mm) diameter small-journal to a 2.1 in (53.3 mm) large-journal and a main-journal size that was increased from 2.3 in (58.4 mm) to 2.45 in (62.2 mm).
Attractions of the 1:18 scale include its size and its corresponding level of detail. Many 1:18 scale automobiles are over 11 inches long, while 1:18 aircraft may reach over 3 feet in length. 1:18 models often include many intricate details and moving parts not commonly found on models in smaller scales. 1:18 model cars are available as kits ...
1×10 −1: multiplication of two 10-digit numbers by a 1940s electromechanical desk calculator [1] 3×10 −1: multiplication on Zuse Z3 and Z4, first programmable digital computers, 1941 and 1945 respectively; 5×10 −1: computing power of the average human mental calculation [clarification needed] for multiplication using pen and paper
For this reason, there is interest in storage of H 2 in compounds of low molecular weight. For example, ammonia borane (H 3 N−BH 3) contains 19.8 weight percent of H 2. The problem with this material is that after release of H 2, the resulting boron nitride does not re-add H 2, i.e. ammonia borane is an irreversible hydrogen carrier. [148]
The symmetry of a carbon dioxide molecule is linear and centrosymmetric at its equilibrium geometry. The length of the carbon–oxygen bond in carbon dioxide is 116.3 pm, noticeably shorter than the roughly 140 pm length of a typical single C–O bond, and shorter than most other C–O multiply bonded functional groups such as carbonyls. [19]
Children born at low birth weight (less than 5.5 pounds or 2.5 kg), are less likely to be healthy and are more susceptible to disease and early death. [2] Those born at low birth weight also are likely to have a depressed immune system, which can increase their chances of heart disease and diabetes later on in life. [ 2 ]
Because of the low availability relative to demand, rhenium is expensive, with price reaching an all-time high in 2008–09 of US$10,600 per kilogram (US$4,800 per pound). As of 2018, its price had dropped to US$2,844 per kilogram (US$1,290 per pound) due to increased recycling and a drop in demand for rhenium catalysts.