Whereas pure water caused the paper to fold quickly, progressively higher concentrations of lithium chloride correspondingly delayed the process. Thereby, by selectively printing different lines from ...

When natural motion comes to mind, plants are most likely at the bottom of most people's list. The truth is that plants can perform complex movements, but they only do so very slowly. The main ...

One of the oldest, most versatile and inexpensive of materials -- paper -- seemingly springs to life, bending, folding or flattening itself, by means of a low-cost actuation technology. One of the ...