General scientific knowledge refers to basic scientific knowledge and common sense that people acquire in their daily lives. This common sense can not only help people understand world better, but also help people cope better with various life challenges. There are many common things and phenomena in a living society that can be explained by scientific common sense.
First, let's look at boiling water. We all know that when water is heated to a certain temperature, it begins to boil. What scientific principle underlies this phenomenon? In fact, water boils because molecules in water begin to vibrate after heating, these vibrations lead to a weakening of interaction force between water molecules, which ultimately leads to transition of water from a liquid state to a gaseous state. During this process, water molecules release a lot of heat, which is why we feel steam when we boil water.
Another common sight is sunset. We all know that sun slowly sets each evening until it disappears completely below horizon. What scientific principle underlies this phenomenon? In fact, sun does not actually set, but as Earth rotates, sun that we see from surface of earth slowly moves below horizon. When sun completely disappears below horizon, it is actually on far side of earth and we can no longer see it.
Finally, let's see how light bulb works. We all know that light is turned on with flick of a switch. What scientific principle underlies this phenomenon? In fact, principle of operation of electric lighting is based on fact that when an electric current passes through a wire, heat is released. When we press switch, current flows through wires in light bulb, and electrons in wires move under force of electric field, which results in release of heat, which eventually causes tungsten filament in light bulb to glow.
In short, scientific common sense can help us better understand various things and phenomena in life in order to better deal with various life problems. By understanding these common senses, we can better understand some of basic principles of life and thus better understand world.
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