Tag Archives: Science

Scientist finds elusive star with origins close to Big Bang

Astronomers have found what could be one of the universe’s oldest stars, a body almost entirely made of materials spewed from the Big Bang. The discovery of this approximately 13.5 billion-year-old tiny star means more stars with very low mass and very low metal content are likely out there—perhaps even some of the universe’s very first stars. The star is unusual because ...

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Why the water remains cool in earthen pitchers?

The water in pitchers gets evaporated through the pores present in the pitcher body causing the by evaporation. Some heat energy is utilized during the process of evaporation. Since this energy is taken from the water itself, it leads to a lowering of temperature in the remaining amount of water present.

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Sound Cannot Travel through Vacum, Why ?

The reason is sound travels in the form of Waves and waves needs a medium to travel, and in vacuum there is no medium to travel through. A vacuumis an area without any air, like space. So sound cannot travel through space because there is no matter for the vibrations to work in.

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What are Vitamins?

Group of organic compounds which are essential for normal growth and nutrition and are required in small quantities in the diet because they cannot be synthesized by the body. “most people can get all the vitamins they need from a healthy diet”  

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