The Physics of Sound

The physics of sound very often is associated with the sense of hearing. Sounds represent a sensation able to stimulate our ears. The term of sound describes what a sound wave is. Every sounds has a source and this represent the place where is produced. A vibrating object represents the source of sounds. The energy is transferred from this source in the form of longitudinal ...

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The Symbol of Electricity

The symbol of electricity is a very complex one. Basically, the term of electricity is related to light, computers, electronic, motors. Electricity is present everywhere. For instance, the atoms and the molecules are held together with the aid of an electric field. Even the normal or the elastics forces are a result of electricity. The ancients started to think about the symbol of electricity. The ...

By March 17, 2012

Time, space, motion, matter are fundamental concepts which helped the tree of knowledge to progress. Mechanics was the first field of physics to be discovered. People started to be interested of forces, displacements and interaction between bodies long time ago, even before Christianity. Astronomy, chemistry, geophysics, engineering, they were  all born and improved having mechanics as a background. I am sure you all heard about ...

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Atomic physics is the physics of atoms.  For understanding what an atom is let`s think for a second at the periodic table of elements. Each “square” represents an atom and it has a unique symbol. Each symbol is characterized by a certain atomic number. An atom consists of a nucleus placed in the center and surrounded by electrons. The nucleus is not empty.  It consists ...

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Astronomy, one of the oldest sciences, began long time ago, when people started to explore “the sky”. When I was little I used to watch the sky for hours and I was fascinated by stars and constellations. At that time I had so many questions about  the “space” above us  or how did planets and stars form.  But only after a few years, I stared ...

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When I say “acoustics” the first thing that comes into my mind is the sound and hearing. Indeed, the acoustics studies sounds, which are physical phenomena. Acoustics is related to the way that sounds are produced and how they travel through liquids, solids and gases. Humans have the ability to hear the sounds with a frequency between 16Hz and 20,000Hzl. There are also sounds with ...

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