Physical Science

John Dalton investigated into the great depths of chemistry. He came up with a theory on the smallest particles in the universe, of what makes up what we call “matter”. All matter consists of indivisible particles. Dalton gave the name…
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How the Gravity Works The first scientific explanation was provided by Newton: gravity works through a force, called the force of gravitation, the same as our weight. This force pulls bodies towards each other. The second scientific explanation was produced…
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Though they may not always be seen, heat exchangers are present in a variety of different devices, machines, appliances, industrial processes, power plants, engines or vehicles. They are present primarily to salvage heat from wasted gases and increase energy efficiency….
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Crystals, or minerals are everywhere around us. How did they come into existence?  How did it happen?  How fast do they grow? Are crystals like plants?   Many plants you can grow from seed, like corn, and watch them mature  until …
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In today’s battery market, alkaline batteries are generally more popular than zinc-carbon batteries. Zinc-carbon batteries were invented first, and were more commonly sold than alkaline batteries for many years. But in the 1950s, the public would realize that significant improvements…
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Safe flying requires that the pilot knows the speed and altitude that they are flying at. Air speed is measured using small tubes called Pitot tubes (pee-to). These cylindrical tubes are positioned on the aircraft and air naturally flows into…
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For most people the first word that comes to mind when you say “arsenic” is “murder.” While arsenic does have a long history as a poison of choice for many murderers, it has been used for a wide variety of…
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In a relatively short period of time we may awake one morning to discover we aren’t who we think we are and not where we thought we lived. In case you don’t know it, our entire reality may be nothing…
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In order to understand why the writer believes that time is illusionary it will be important to consider how time, as a factor, is used in the process of determining speed. According to Einstein’s theory of special relativity nothing can…
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A candle consists of two primary components: a wick, and the solid fuel into which the wick is embedded. The wick must consist of some material which can catch fire quickly and which is also absorbent. In contrast, the fuel…
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