By: Shaheen Daad
In a mixture there are two or more substances combined which have not reacted chemically with each other. In other words, nothing further than mixing has taken place. Each constituent remain intact within it, and are able to demonstrate all the chemical properties that characterize...
By: Shaheen Daad
Budding engineers going into university are wildly ecstatic about fields such as dynamics, thermodynamics, electromagnetism and quantum mechanics. But when they come out they appreciate something quite different, sitting quietly in an unassuming corner of the engineering syllabus - statics. Statics is about stationery objects...
By: Shaheen Daad
According to the ancient Greek philosopher Heraclitus, one cannot step into the same river twice. This expresses the fact that everything in the world is subject to change. Yet the Mississippi River may still be called the Mississippi River, so they must be something there...
By: Shaheen Daad
Still waters are said to run deep. It is clear that something is causing it to stay still, since the more "normal" waters surrounding it are swaying and heaving in every manner. It may also be appreciated that the cause is not a trivial one...
By: Shaheen Daad
A gaseous substance will be called a gas if it is above its boiling point, but a vapor if it is below. This sounds precise enough, but actually it is not. There is a lot of confusion to be sorted out. If you leave a...
By: Shaheen Daad
Quantum radar technology is still in its development stage, and high claims are being made for it. One of its most promising applications is in a foolproof radar system, specifically in the field of detection and identification of enemy aircraft. Radar has been used from...
What is the difference between centripetal and centrifugal force?
By: Steven Mars
The definition of centrifugal force, according to dictionary.com, is “An outward force on a body rotating about an axis, assumed equal and opposite to the centripetal force and postulated to account for the phenomena seen by an observer in the rotating body.&rdquo...
By: Gaynor Paynter
Terminal velocity occurs when a falling object stops accelerating and falls at a constant speed. The word velocity itself refers to the rate that an object changes position. When an object falls there comes a time when it reaches a constant velocity, otherwise known as...
What is meant by the terminal velocity of a falling object?
By: Steven Mars
The definition of terminal velocity is, according to dictionary.com, “The velocity at which a falling body moves through a medium, as air, when the force of resistance of the medium is equal in magnitude and opposite in direction to the force of gravity...
Scientists announce discovery of the "God particle" or Higgs boson
By: Colette Georgii
On March 14, 2013 scientists working on the ATLAS and CMS particle physics experiments at CERN (Conseil Europeen pour la Recherche Nucleaire, or the European Council for Nuclear Research) announced at the Moriond Conference in La Thuile, Italy, that they have discovered the "God Particle"...

 

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