July
31
Category: Science
The pink diamonds comes in shades ranging from a pastel rose, such as the Pink Orchid to intense purple-reds of the Moussaieff Red, and the price is determined by the intensity of the color. Pink diamonds have sold for up to $1,000,000 a carat. Unlike the Type I diamonds that derived their color from impurities imbedded in the diamond
, Pink diamonds are considered a Type II and get their color from a process known as Plastic Deformation.
Graff Pink Supreme Diamond
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April
7
Category: Science
There are serious problems with psychological tests conducted in a laboratory.
Psychological laboratory tests suffer from a series of common philosophical, methodological, and design problems.
A. Philosophical and Design Aspects
Ethical ? Experiments involve the patient and others. To achieve results, the subjects have to be ignorant of the reasons for the experiments and their aims. Sometimes even the very performance of an experiment has to remain a secret (double blind experiments). Some experiments may involve unpleasant or even traumatic experiences. This is ethically unacceptable.
This is a preview of
Common Problems with Psychological Laboratory Tests
.
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