How South Africa was founded? May 31, 1961South Africa / Founded Who arrived first in South Africa? 1480s – Portuguese navigator Bartholomeu Dias is the first European to travel round the southern tip of Africa. 1497 – Portuguese explorer Vasco da Gama lands on Natal coast. 1652 – Jan van Riebeeck, representing the Dutch East […]
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What are Miller indices in crystallography?
What are Miller indices in crystallography? Miller indices, group of three numbers that indicates the orientation of a plane or set of parallel planes of atoms in a crystal. This scheme, devised by British mineralogist and crystallographer William Hallowes Miller, in 1839, has the advantage of eliminating all fractions from the notation for a plane. […]
What is VDI certification?
What is VDI certification? Virtual desktop infrastructure (VDI) requires a number of back-end hardware and software components to provide end users with the performance and computing experiences they expect. Vendors have offered VDI training for some time, but the majority of that training (and related certifications) remains vendor-specific. How do I get a VMware certification? […]
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How do you determine pre consolidation pressure?
How do you determine pre consolidation pressure? Draw the bisector line between the previous horizontal and tangent lines, and draw the NCL; The vertical stress corresponding to the point of intersection between the bisector line and the NCL represents the preconsolidation pressure, . Who found the method of determination of preconsolidation pressure? 14. Who founded […]
What does it mean when the PPF is bowed out?
What does it mean when the PPF is bowed out? The Production Possibilities Curve (PPC) is a model that captures scarcity and the opportunity costs of choices when faced with the possibility of producing two goods or services. The bowed out shape of the PPC in Figure 1 indicates that there are increasing opportunity costs […]
How much colloidal silver will turn your skin blue?
How much colloidal silver will turn your skin blue? Argyria can occur when levels reach 4 grams. However, in the majority of cases, blue skin only becomes prevalent after total silver persists at 20 grams or more. Does silver cause skin discoloration? Argyria is a condition that develops as a result of silver particles entering […]
What is a risk reversal option?
What is a risk reversal option? A risk reversal is a hedging strategy that protects a long or short position by using put and call options. This strategy protects against unfavorable price movements in the underlying position but limits the profits that can be made on that position. What is a reverse spread? A reverse […]
How does a deluge valve work?
How does a deluge valve work? How is a Deluge System activated? The sprinkler heads on a Deluge system are fused together and operate as one when activated. The valve is opened when activated by heat or smoke detection systems. Once activated, the water is released into the piping and out of the sprinkler heads. […]