Multiplying Fractions: Multiplying Fractions and Canceling
This clip explains that, "
.when we multiply together two or more fractions, and the same number appears in a numerator and a denominator
we are allowed to divide through or 'cancel' in both places." The clip concludes by stating that, "
if you d...
Is Mind Distinct from Body?: Reductionists' Accounts of Mental Activity
Materialists argue that "the mystery of the mind" is an illusion that science will clear up once we understand all of the neurophysiological aspects of how the brain functions. Even in science, this reductionist view point is rare. Such knowledge ma...
Chemical Treatment Technologies: Chemical Principles
Chemicals provide the building blocks for everything in our physical world. Uncontrolled, their misuse can result in tragedy. As a safeguard against potential dangers, treatment processes are being implemented to mitigate or eliminate the harmful ...
Chemical Treatment Technologies: Oxidation and Reduction: An Overview
While some metals can be readily precipitated, others cannot be until they are reduced. The clarified water resulting from these processes can then be discharged into a municipal wastewater treatment system.
Chemical Treatment Technologies: Electrolysis
The oxidation/reduction process is applied by industries in several unique and environmentally beneficial ways. The most frequently used technique is electrolysis. This is especially common in the photographic processing industry.
Chemical Treatment Technologies: Ozonation
Traditionally, chlorine has been used as a disinfectant to kill viruses and bacteria in drinking water. However, chlorine has the disadvantage of reacting with organics in the water, producing potentially carcinogenic by-products. Ozonation, an ox...
Chemical Treatment Technologies: Oxidation, Reduction and Gaseous Wastes
Oxidation and reduction not only apply to liquid waste streams. A packed bed scrubber can be used to treat gaseous wastes, such as the hydrogen sulfide odors from a water treatment facility.
The Meaning of Percentage: Changing Fractions to Percents and Percents to Fractions
This clip explains that the easiest way to understand percent is to think of it as a proportion. The clip notes that this allows us to change fractions to decimals, and provides examples of how this is done. The clip then reverses the process and ex...
The Irreducibility of Consciousness
Philosopher John Searle talks about reduction, and details a number of the scientific phenomena that are what he calls "textbook models of reduction." Some of these include color, light, and the heat of a gas. Professor Searle goes on to say that it...