# Physics

By: D. Vogt
Mass and weight are usually used interchangeably in common conservation; in the natural sciences, however (and especially in physics), these refer to two specific, different properties of matter. In essence, mass is an estimate of the amount of matter in an object, and is equivalent...
 By: Nish Laverz Physicists have been working on finding a way to time travel for years. As far as we know without success. But will we ever break the time barrier or will it always be something we strive to do? The English mathematician, Stephen Hawking once proposed...
Difference between volts and amps
By: D. Vogt
There are several measurements essential for understanding electricity, including current (or amps), voltage, and resistance. With respect to the first two of these, the basic difference between amps and volts is that amps (or amperes) are used to measure the number of electrons that are...
By: Nick Ford
Radiation energy, or radiation, refers to any form of energy propagated as rays, waves or a stream of particles. The term usually applies to light or other electromagnetic waves but can also be used to describe sound waves, water waves and the emissions from radioactive...
Difference between voltage and current
By: Lime Red Tetrahedron
Voltage and current: two fundamental principles of the physics of electricity. Since the fathers of electrical science discovered current electricity, man has sought ways to explain its properties. In this article, we will explore the concepts of electric current and electric potential (voltage), as well...
Introduction to vectors in physics
By: Jeffrey Graf
A vector is a mathematical object that can be used to represent a physical or mathematical property. By object, I mean a construct that contains two or more components. A vector always has a magnitude and a direction. Vectors are useful for representing forces, velocities...
The qualities of an electromagnetic field
By: Michael Mackie
Magnetic Poles “He who controls magnets controls the universe” All magnets have a north and south pole. If the north (seeking) pole is brought close to the south (seeking) pole, they attract one another. If like poles are brought too close together, they desist...
Difference between the Swedish mil and UK mile
By: D. Vogt
Outside of the United States, the metric system is theoretically the standard system of measurements for all countries; however, nations have often informally retained a few traditional measurements. For example, Canadians still work in pounds rather than kilograms; and, in Europe, the Swedes have kept...
Biography: Max Planck
By: D. Vogt
Max Planck (1858-1947) was a famous physicist from Germany, the first to postulate what is now known as quantum theory, for which he won the Nobel Prize. Planck's career began before that of Albert Einstein, whose name is more recognized in popular culture today, but...
By: SEG
After thousands of years of scientific and philosophical assessments regarding Time, Aristotle’s original observation that “Time is the measure of change” still gives to us the simple knowledge that Time and motion are inextricably bound together within our awareness. In our daily experience...

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