Physical Science

Astronomical spectroscopy is one branch of spectroscopy that deals with the physical and chemical properties of astronomical objects. It is a technique that measures the absorbed, emitted or scattered light of materials. Spectroscopy´s role in astronomy involves the determination of…
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As a naturally occurring alloy containing primarily gold and silver, electrum is a precious mineral. This mineral also contains other metals like copper in traces. Today electrum is also being produced artificially. In ancient times, Greeks used to refer to…
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The scientific discipline of chemistry includes a branch called thermodynamics that observes the changes that take place with different forms of energy. In this branch, the concepts of system and surroundings are used repeatedly. A system, in thermodynamics, is simply…
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Yeast or Saccharomyces Cerevisiae is a microorganism that converts the household sugar into Ethanol and Carbon-dioxide. Ethanol in the whole world is made by this method. Here’s how to perform this reaction: You will need: 1)      A plastic bottle with…
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Assaying is the analysis of ore, metal or alloy. The discipline is known as metallurgical assay. There are several uses for assaying metals, both before and after refining it.  For example, samples are always taken from potential mines, to be…
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Here are the main factors that affect the rate of reaction: Temperature: The higher the temperature, the more will particles move and the faster will be the reaction. This is because all the heat energy given to reactants turn to…
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Materials scientists working on a collaborative project between the California Institute of Technology and the U.S. Department of Energy’s Lawrence Berkeley National Laboratory have managed to produce an incredible breakthrough: a new type of metallic glass. What’s even more amazing…
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Broken iPhones, windows, and dinnerware may soon become extinct now that a new super-glass has been created. By combining five different elements, scientists have come up with a new type of glass which is said to be stronger than steel….
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Mustard gas was used in Flanders, near the town of Ypres, on 12 July 1917.  This was its first reported use in modern warfare, and one of its alternative names is Yprite. The chemical was first synthesised much earlier, certainly…
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Metal nanoparticles are at the forefront of various areas of research. A nanoparticle is defined as a particle with at least one dimension less than 100 nm. Although metal nanoparticles can be made from many different metals the primary one…
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