Physical Treatment Technologies: Microfiltration and Reverse Osmosis
Microfiltration and reverse osmosis are barrier filters that have the smallest pore sizes utilized. These techniques are heavily dependant on supplementary pressure to force the waste stream across the barrier. After t..
Physical Treatment Technologies: Physical Treatment Processes
Physical treatment technologies often provide the initial and most efficient form of treatment, but do not actually transform or destroy the waste. Physical treatment processes often rely on natural forces to do the wor..
Physical Treatment Technologies: Vapor Pressure: Evaporation Ponds, Air Stripping and Distillation
The physical property known as vapor pressure is the tendency of a material, at a given temperature, to turn into a gas. Substances with a higher vapor pressure will change into a gas more quickly than substances with a..
Physical Treatment Technologies: Waste and Emissions Standards
In the past, when the waste load was light, nature's ways of purifying itself were sufficient. However, the amount of waste generated by contemporary society has overburdened these restorative powers. As a result, regu..
Physician-Assisted Death
Professor of Law and Medicine Alex Capron talks about ethical issues pertaining to physician-assisted death. He explains why he is opposed to it, arguing that what we should be doing instead is finding ways to make dying..
Physician-Assisted Suicide
Philosopher Michael Sandel criticizes the argument that the Supreme Court should adopt a neutral position that does not prevent individuals from opting for physician-assisted suicide. Professor Sandel talks about the opp..
Plan of Action
This video explains the importance of pre-planning for a sales presentation and outlines the work involved prior to the actual meeting with the prospect.
Planning
This clip explores the management function known as planning. The clip explains that it is important to establish clear goals and forecast trends and events in order to make good decisions. Nonetheless, the clip notes, p..
Plate Tectonics and Earthquake Distribution
Geophysicist and geologist Tanya Atwater talks about the correlation between plate boundaries and earthquake distribution.
Plate Tectonics and Heat
Geophysicist and geologist Tanya Atwater talks about plate tectonics as a mechanism by which Earth's interior sheds the tremendous heat that builds up as a result of radioactive decay.