Author Archives: newbeelity

Stellar classification

The stellar classification classifies stars based on their spectral characteristics. When passing through a prism, light from a star will be split into a spectrum displaying rainbow of colors interspersed with absorption lines. The strength of each line indicates the abundance of a specific ion. The abundance of different ions varies with the temperature of… Continue reading Continue reading

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Silicon based life

The silicon atom has been discussed as the basis for an alternative biochemistry system, since silicon is in the same group of periodical table as carbon and shares many chemical properties with carbon. As silicone-based chemicals are much more stable than equivalent hydrocarbons in a sulfuric-acid-rich environment that is found in many locations in the… Continue reading Continue reading

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White dwarf supernovae

White dwarf supernovae only occur in a binary system, in which one of them is a white dwarf while the other can be a giant star or just a main sequence star. As far as we know, a white dwarf is the remnant of a star after the nuclear fusion inside its core has ceased,… Continue reading Continue reading

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Halley’s Comet

Halley’s comet is a short-period comet, which can be seen from Earth every 75-76 years so that a person could see it at most twice during his or her lifetime. It is undoubtedly the most famous comet. The last time it returned was in 1986, and it will be back in 2061 as predicted. Halley’s… Continue reading Continue reading

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Dark matter

Dark matter is a hypothetical matter that neither emits nor absorbs light or any other electromagnetic radiations so that it cannot be seen with any telescopes nowadays. However, dark matter accounts for most of the matter in the universe, and it should be responsible for many phenomena occurring in the universe. According to the standard… Continue reading Continue reading

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Climate Change

Climate change is a change in the statistical distribution of weather patterns when that change lasts for an extended period of time (i.e., decades to millions of years). (Definition from Wikipedia) Climate change is caused by biotic processes, variations in solar radiation, plate tectonics and volcanic eruptions. Human activities have also been regarded as a cause of recent… Continue reading Continue reading

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Black Hole!

A black hole is a mathematically defined region of spacetime exhibiting such a strong gravitational pull that no particle or electromagnetic radiation can escape from it. (Definition from Wikipedia) General relativity indicates that a sufficient density can deform spacetime to form a black hole. The boundary of the region from which nothing can escape is called the event horizon. It has no detectable features when observing something traveling across an… Continue reading Continue reading

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Special Relativity

In physics, special relativity (SR, also known as the special theory of relativity or STR) is the accepted physical theory regarding the relationship between space and time.(Definition from Wikipedia) At the end of the 19th century, Maxwell equations of electromagnetism had been proved by plenty of experiments. However, Maxwell equations are not consistent with the Galilean transformations in Newtonian physics. As a result,… Continue reading Continue reading

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Great events and figure in the time of Isaac Newton

Isaac Newton 25 December 1642 – 20 March 1726/7(due to different calendars) What happened during Newton’s lifetime? 1. English Revolution It was a bourgeois revolution, during which the bourgeois destroyed the last feudalism in Britain, bringing democratic ideas to people. 2. Glorious Revolution This revolution was the overthrow of King James and his policies of religious… Continue reading Continue reading

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Total Solar Eclipse

A solar eclipse is a type of eclipse that occurs when the Moon passes between the Sun and Earth, and the Moon fully or partially blocks the Sun. (Definition from wikipedia) Total solar eclipse is pretty rare, only about once a year. This only happens when: 1. There is a New Moon, 2. The Moon is… Continue reading Continue reading

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