stereocyde

Seriously, though, has anyone looked into this? I just started thinking about Bose noise-canceling headphones, and thought, why not black holes? If you can invert a sound wave and cancel out sound, why not light?

What is the name of the effect in research when the outcome is tainted because the subjects unconsciously chose certain outcomes because they knew they were being studied?

There's a truck commercial that shows how the truck evolved through the years, and I'd like to show it to my students, but I can't remember which truck it was, nor can I find it on YouTube...anyone know what I'm talking about?

I'm looking for some reference photos for males and females, does anyone know of a site where i can find different hair styles shown in front, angle and profile views?

I'm trying to find the volume of a coffee cup, and the shape, depending on which way you want to look at it, is either a rotated trapezoid (the top radius is longer than the bottom radius), or a cone that has the tip cut off. My initial theory was to look at it as a big cone, and subtract the volume of the missing cone (the point), but then I've thought of finding volume as a function of a trapezoid being rotated. Anyone have any suggestions?