This is the optical illusion we did in class, and although it seems that the flame is coming out of my hand, it is actually an optical illusion, we used a Plexiglas screen, and using the properties of mirrors, we were able to create this illusion. I was behind the screen, while the Bunsen burner was on the other side, and, because a reflected image appears the same distance behind the mirror as it is in front, you can move the Bunsen burner backwards or forwards, then the reflection also moves, and you can make the flame look like its coming out of anywhere. This effect has been used in many movies before computer graphics became as famous.
With a mirror what happens is that when light is reflected, it reflects at the same angle it came, and that is why you can see you self in a mirror. Also, because it reflects in this way, the image always seems to appear at the same distance:
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