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MATTER AND WAVES

 Matter:  Electron is a particle and a book is a body made of particles.
Waves:  Sound is a mechanical wave and light is a electromagnetic wave.

 Particles transport themselves and move in a straight line.  A wave is a disturbance or energy traveling through a medium or vacuum.

 A particle cannot deviate from its path without a force.  But waves from a source can spread in spherical form through all directions.

 A particle is characterized by its mass and speed.  Wave is characterized by frequency and wavelength.

 Waves can bend over the edges and spread through the hole.  But particles cannot do so.

 High frequency waves may behave like particles(light photons).  High speed particles may behave like waves(electron waves)
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Matter can be converted into energy (waves) and vice versa, according to E=mc^2

 Hence the border line between particle and wave blurs.

 Science update: US congress approves NASA manned mars mission by 2033.  Funds alloted from this year. 
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