A smartphone hologram-like projector

In this activity, students use a sheet of acetate to make a transparent, four-sided pyramid. The pyramid’s sides act as...

Digital cameras are very useful for taking holiday snaps, but they are also useful tools for imaging inside and outside...

History tells us that human beings are sometimes unreliable (or incapable) when it comes to reporting their symptoms and recalling...

In this activity, students use a sheet of acetate to make a transparent, four-sided pyramid. The pyramid’s sides act as...