By: M. Noman Younis
Introduction:In physics and nuclear chemistry, nuclear fusion is the process by which multiple atomic particles join together to form a heavier nucleus. It is accompanied by the release or absorption of energy. Iron and nickel nuclei have the largest binding energies per nucleon of all...
By: Jonathan Funk
Simplified:The turning motion of your wrist applies rotational inertia to the axle and bulbs.Inertia builds (stored as angular momentum) as the string unwinds.When the yo-yo string is fully extended, friction acts between the string and axle to resist further spinning motion (and the...
By: Kerry Johnson - 342599
"Halt or I'll shoot!" If most of us hear these words, we'll stop. Someone is "forcing" us to stop moving. A football player running the ball will run until someone "forces" him to stop by tackling him or running him out of bounds. A...
By: Moshe ben-Avraham
Sadly, string theory [or more properly superstring theory] is neither currently experimentally testable nor in a state of development where we can foresee it being so in future. When I was in graduate school, prospective doctoral students in the department [physics] were required to attend...
By: Moshe ben-Avraham
Force like any physical concept is best explained by use of familiar examples. Technically speaking, force represents the change per time of momentum, i.e., a combination of mass [the mount of "stuff"], speed or direction, as that time interval becomes small. In high school...
By: Victoria Jeffrey
There are billions of stars in our universe. One of them is the most important star to life on Earth. That's the sun. When we examine all that the sun does for life on earth, how perfectly placed we are in relation to the sun...
By: Rodger Caldwell
Nano Assembly is a sub topic of Nano technology, the study and fabrication of structures 1-100 nanometers in size. For billions of years nature has constructed many different nano structures from nano assemblers. Ribosome's, for instance, are nano machine tools. They follow instructions from messenger...
Exploring the ozone layer
By: Rex Trulove
Most people have heard about ozone depletion, and a majority probably also know that it is a gaseous layer in our atmosphere that prevents harmful solar radiation from reaching the surface of our planet. But how many people know what it really is, how it...
By: Ernest Washburn
Nuclear fusion bombs work by undergoing a process called nuclear fusion. Nuclear fusion occurs when the nuclei of two atoms are forced together to form a different and heavier element. Nuclear fusion can only occur with elements lighter than iron. In the case of a...
By: Ernest Washburn
Energy. What is energy? In Webster's Unabridged Dictionary energy is defined as 'the capacity for vigorous activity'. The law of conservation of energy states that energy can never be created or destroyed, it can only be transformed. Energy can be classified into two divisions: potential...

 

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