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 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 do I make a Windows XP boot disk?
How do I make a Windows XP boot disk? To create the boot diskette for Windows XP, follow these steps: Insert a diskette in your computer’s floppy disk drive. Go to My Computer. Right click on A:\ , this is usually the drive letter that holds the diskette. Click Format. Check the “Create an MS-DOS […]
What is the formation of triglycerides called?
What is the formation of triglycerides called? Triglycerides are formed when condensation reactions occur between one glycerol and three fatty acids. The hydroxyl groups of glycerol combine with the carboxyl groups of the fatty acids to form an ester linkage. This condensation reaction results in the formation of three molecules of water. What makes up […]
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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 […]