The planet Earth is believed to consist of a thin crust 2–3 mi thick under the oceans and as much as 25 mi thick beneath the continents that covers the large, solid sphere of the rock mantle, which descends to about 1,800 mi. Below the mantle is the fluid outer core, and, at about 3,200 mi depth, the apparently solid inner core.
This section is both for: Antigravity: things that fight the force of gravity; such as matter that "falls upwards", gravitational repulsion and gravity shielding; Paragravity: gravity generators, where you put electricity into one end and synthetic gravity comes out the other
SPECIFIC METHODS ENZYME PREPARATIONS α-Amylase Activity (Bacterial). Application and Principle. This procedure is used to determine the a-amylase activity, expressed as bacterial amylase units (BAU), of enzyme preparations derived from Bacillus subtilis var., Bacillus licheniformis var., and Bacillus stearothermophilus.
6.3 Fusionable Materials. Fusion fuels are all light elements, which are enormously more abundant than the heavy elements relevant to fission. Isotopic separation is fairly easy in light elements since low masses mean relatively large mass ratios (Li-7 is only one atomic mass unit heavier than Li-6, but it is 17% heavier; U-238 is 3 amu heavier than U-235, but it is only 1.3% heavier).
Mineral processing: Mineral processing, art of treating crude ores and mineral products in order to separate the valuable minerals from the waste rock, or gangue. It is the first process that most ores undergo after mining in order to provide a more concentrated material for the procedures of extractive metallurgy.
Chapter 4 SEED COLLECTION Introduction. The previous chapter outlined the methods of determining when to collect seed and from which trees. The present chapter describes the various methods available, both manual and mechanical, for the actual operation of collecting seed from a given tree.
Gravity thickening is the easiest way to reduce the water content of sewage sludge with low energy consumption. Sludge is pumped directly to a circular tank equipped with a slowly rotating rake mechanism, which breaks the junction between the sludge particles and therefore increases settling and compaction.