Physical Science

Have you ever thought why a small stone sinks in water while a big ship can stay afloat in the sea? Well, physics can explain this. In 212 BC, Archimedes who was a Greek mathematician, physicist, engineer, inventor and astronomer discovered a…
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A warp drive is a theoretical type of space propulsion drive which would allow spacecraft to travel faster than light by somehow warping or distorting spacetime around them. Science fiction writers, and certain futurism-oriented physicists, envision the warp drive as…
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A black hole, long a trope of popular science fiction, is a theoretical region of space in which, as a result of its mass, the force of gravity has become so immense that nothing can escape it, even nearby light….
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For decades, time travel has been one of the most common tropes of popular science fiction. Today, a growing number of physicists and cosmologists are beginning to suggest that it might eventually become a reality – although not necessarily the…
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Earlier in 2010, the famous physicist Stephen Hawking made headlines with the controversial remark that our search for extra-terrestrial intelligence is putting Earth at too great a risk, since it may provoke an unwanted first contact with hostile aliens. In…
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One of the greatest challenges facing our physicists today are the mysteries of black holes. After being coined by John Wheeler in 1967, the phrase ‘black hole’ has spread throughout the planet. But yet we know very little about black…
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The second law of thermodynamics states that the entropy of a closed system always increases over time – or, in layman’s terms, all things decay. It is one of the four fundamental laws of thermodynamics, and the most important for…
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Conduction is a type of heat transfer that deals with contact between to objects. Each object has an initial temperature that is different than the other, but when the two objects come in contact over a period of time they…
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In some popular science fiction, in which time travel is possible, the Sun – or some other star – is said to make possible an unusual and perhaps even controlled method of backwards time travel. This usually involves the intersection…
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Pleiades is a group of stars that have become known by many civilizations throughout history. Many references to this group of stars involved agriculture or rain. Ancient civilizations began to notice that the Pleiades signaled the beginning of the rain…
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