They're clear, yeah? So why would they cast a shadow?
Methinks it has something to do with light refraction, but I'm not sure...
2007-06-14 11:56:18 · 4 answers · asked by nebula_coloma 2 in Science & Mathematics ➔ Physics
You have parallel light beams impinging on a roughly spherical lens. Only a very small portion of that light continues in its original direction. Most is dispersed fairly uniformly in all directions. That's why fog is so uniform.
2007-06-14 12:19:52 · answer #1 · answered by Frank N 7 · 0⤊ 0⤋
You can produce the same effect with a large lens. A large lens placed in front of a light source will also produce "a shadow" because not all of the light from the source will pass directly through the lens.
2007-06-14 12:34:49 · answer #2 · answered by Scythian1950 7 · 1⤊ 0⤋
Light still takes longer to pass through water than it does air. They cast shadows, but not completely black ones, so some light does show through. I mean, that's my guess.
2007-06-14 12:04:33 · answer #3 · answered by P. Nila 2 · 0⤊ 1⤋
They are little lenses and refract the light.
2007-06-14 11:59:24 · answer #4 · answered by Gene 7 · 0⤊ 0⤋