By: John Greece
Energy called any form of action and can be expressed in various ways. There are many different forms of energy. Below analyze simply, quickly, and comprehensively the mild forms of energy derived from various natural processes and not primarily affect the ecosystem and the environment...
An explanation of the Fermi paradox
By: Perry McCarney
It IS rocket science! But fortunately we do not need to be conversant with the technical specifications of spacecraft propulsion systems to understand the rationale behind Enrico Fermi's (1901-1954) question "Don't you ever wonder where everybody is?" The question is generally stated as...
By: Elton Gahr
For years SETI has been looking for messages from outer space, searching the sky for signs that we are not alone in the universe, but while we have been listening rarely have we said anything ourselves. The Arecibo Broadcast is the most powerful of our...
Chemistry basics: Understanding mixtures and solutions
By: Ernest Capraro
Rather than trying to define a mixture, it might be easier to define what a mixture is not. A mixture is not a pure substance. A pure substance, in chemical terms, is something with only one chemical present. That chemical might be either an element...
When could humans first set foot on Mars?
By: D. Vogt
A manned mission to Mars is quickly emerging as the most important near-term goal for the future of manned space programs. Just as was the case prior to the missions to the Moon in the late 1960s, there remains considerable uncertainty over how to resolve...
The future of fusion as an alternative energy source
By: Rick Badman
When I designed a fission/fusion reactor in 1977, I thought for sure we would have fusion power by the end of the 20th century. My reactor uses a fission reactor to produce the particles needed to change hydrogen into heavy hydrogen, produce the particle...
But it could be done
By: Rick Badman
The question seems simple. Since atoms make up molecules, molecules can be changed back into atoms. But what is the most difficult thing to do is change molecules into more massive atoms. Could a water molecule be changed into a fluorine atom? The3 answer...
Properties of water
By: Chu Chin Kwok
Water, that most essential of chemical substances on our planet, is a wonderful gift of nature that most living things cannot live without, especially us human beings. Water, in the form of oceans and lakes and other 'bodies of water' constitutes almost three-quarters of the...
Converting Fahrenheit to Celsius
By: Beverley Francis
HOW TO CONVERT FAHRENHEIT TO CELSIUS AND OTHER CLOSE ENOUGH METHODS OF CONVERSION Two systems for measuring temperature are-Fahrenheit and Celsius. Fahrenheit is used in the Imperial system and Celsius(used to be known as Centigrade) is used in the Metric system. The United States, Jamaica...
By: Patrick Sills
The dream of interstellar space travel has been around for decades. One could argue that in the case of a brilliant few, this dream has existed for centuries. In regard to this fanciful topic, and whichever school of thought is favored, one common belief serves...

 

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