Physics: Do artifacts exist that prove time travel is real?
By: Terrence Aym
Physics: Do artifacts exist that prove time travel is real?Skeptics have pointed out that if traveling through time ever became possible that we would see evidence of it all around us. Indeed, time travelers would be walking amongst us! They argue, correctly, that once...
By: Elizabeth M Young
For the human concept of time to not exist, change would not be allowed to happen. Our symbolic representations of the passage of time are integral to our dealings and interactions with an ever changing natural world. Objects are in one place and humans often...
Stephen Hawking warns about aliens and insults the human race
By: James Boyd
Stephen Hawking recently stirred up some controversy by stating that human contact with an extraterrestrial species might not be a good thing—for humans. Some have responded to his assertion on the likelihood of life forms existing in other planetary systems by citing some sort...
Applications of group theory in physics
By: ahan abhati
The applications of group theory can be subdivided generally into two broad areas: where the underlying dynamic laws of interaction and therefore all the resulting symmetries are known exactly; the other where these are as yet unknown and only the kinetic symmetries(i.e. those of...
Understanding Newton's Law
By: ahan abhati
The discovery of Newton’s laws of motion was a dramatic moment in the history of science. In narrow sense, it was simply a specific paradigm shift in modern science. This shift was initiated by Copernicus, established by Galileo and Kepler, and completed by Newton...
How the unification of gravity has been discovered
By: Jacob Funk
Since their conceptions, the theories made to explain quantum theory have been at odds with those used to explain relativistic physics. Einstein himself questioned the validity of quantum theory when it predicted that the spin of a particle was absolute regardless of frame of reference...
Physics: Hawking proclaims 'Time travel will exist'
By: Terrence Aym
For more than 100 years astronomers, cosmologists and philosophers have debated many topics affecting existence and the mysteries if the universe. Two of those debates have centered around time travel and whether life—especially intelligent life other than our own—exists in the universe. In...
By: Kevin Manning
Dark Universe The universe is expanding at an increasingly faster rate, and much of it we cannot "see." Current explanations for these two phenomena gave rise to terms such as dark energy and dark matter. The former is very mysterious and little is known...
By: Carrie Eckles
Laser light was first generated in 1960. Fifty years later, lasers are an everyday part of life we often take for granted. Theodore H. Maiman introduced the first functioning laser in 1960, but it was a far cry from the lasers we know today. It...
The significance of the Book of Optics
By: D. Vogt
The Book of Optics is a medieval multiple-volume text pared by Alhacen, an 11th-century Arab physicist. (Alhacen is his Europeanized or Latin name; to the Muslim world, he was known by his given name, Ibn al Haytham.) Despite the name, the Book of Optics...

 

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