electrons. tiny bits of matter, or waves? the answer, both. shown in this experiment here we can clearly see how a bit of matter can act like a wave. the video shows a test from firing atoms at a wall (not actually a wall but i don.t know what it is actually called). the particles were fired at a plate that had two thin slits for the particles to go through. we beleive that the particles should have gone through the slits and formed two lines on the wall very similar to the two slits the particles passed through. but, they actually formed a pattern associated with an interference pattern from waves. the brighter spots are where the two crests of the waves met up and hit the wall, while the dark spots are where the crest and trough collided and canceled each other out. at first scientists believed that the particles were hitting each other and making this pattern. so they then tried firing the particles one at a time, the interference pattern still came up. this meant that the particles were suddenly turning into waves and passing through both slits at the same time, and then interfering with itself.
scientists then decided to look and see what was actually happening. the placed a measuring device near the slits to see what actually happens. yet when they did this, the particles behaved like particles again. they formed two lines. this meant that the simple act of observing the particles made them act like particles and not waves.
we have come to know this has the Heisenberg uncertainty principle.

shockwave

nothing says freedom like a really big explosion of old ammo. in this video we can clearly see what happens when something is detonated at a very high velocity. in the first few seconds of the clip we are able to see the shockwave. this shockwave occurs when an object is moving so fast through a medium that the medium does not have time to react, so when it finally does react it is almost instantaneous. we see the air almost instantly react to the massive amounts of heat and pressure that built up in the explosion. the second video is a good example of waves in the air. the explosion sets out a pulse in all directions creating lateral waves causing the air to compress and decompress very rapidly. this is clearly shown in the dirt on the ground as the air moves past it.