Physics (general)
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Historical legend says Archimedes discovered the principle of buoyant force in a fluid while trying to tell if a crown was solid gold. more...
Physics uses both scalar and vector quantities. Vectors include magnitude and direction; scalars include only magnitude. more...
Mass and weight are related but distinctly different properties of an object. Mass is an inherent property; weight is the gravitational force acting on an object. more...
An object's mass is a constant inherent property that measures the amount of matter. An object's mass is related to its inertia and gravitational force. more...
The Third Law of Thermodynamics
The third law of thermodynamics says reaching a temperature of absolute zero is impossible and makes it impossible for a Carnot cycle engine to achieve 100% efficiency. more...
The principles of thermodynamics, a branch of physics, can be loosely applied to discern between a legitimate high yield investment and an investment fraud or scam. more...
Many inventors dream of perpetual motion machines, but they are an impossible dream according to the laws of thermodynamics. more...
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The PN Diode as a Circuit Switch
A diode consists of p-type and n-type semiconductor materials joined together. One may approximate an "ideal" diode to a switch and simplify analysis of simple circuits. more...
By:
Isaac M. McPhee
In Special Relativity, will a moving person age slower than a stationary one? This is a question which has been tossed around for years, with very interesting results. more...
Traveling at the Speed of Light
By:
Isaac M. McPhee
Embedded within the special theory of relativity are four fundamental reasons that Einstein provided to explain why nothing can ever travel at or beyond light speed. more...
By:
Isaac M. McPhee
The phenomena known as black holes are some of the most studied elements of the universe, yet they still retain a fascinating amount of mystery. more...
By:
Isaac M. McPhee
In the all-important world of code making and breaking, perhaps the greatest hope comes from the world of quantum physics. more...
The Legacy of General Relativity
By:
Isaac M. McPhee
When Einstein published his General Theory of Relativity, surely even he could not be fully aware of the profound effect it would have on the scientific community. more...
Gravity and General Relativity
By:
Isaac M. McPhee
In essence, Einstein's General Theory of Relativity was an entirely new theory of gravity, replacing the centuries-old theories of Isaac Newton. more...
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