When you consider just how tiny a particular thing can get and still be functional, it's even more amazing. Here is an example...
Nanotechnology, nanorobotics, nanomachines. An ever expanding field of science and technology expected to revolutionize the world as we know it. The simplest, (though hardly simple), of nano machines are being constructed for biological study to better understand the mechanics of the cell, and all it’s natural capabilities. The hope is that humans may be able to replicate some of these functions, towards the better health of mankind in the future. Science envisions great strides in the fields of molecular biology, medicine, chemistry, physics, and nanocomputers through the development of these microscopic motors. Many of these machines are as small as 1/2 the width of a human hair and others are so small several hundred would fit in the space of the period at the end of this sentence.
Now here's a question for you to ponder. What kind of tools do they use to make something this small? Must be pretty darn tiny, right?
Coffee out on the patio this morning, where it is kinda cool yet.