August 20th, 2015

letters

скамья была мокрая, и он подложил под себя "GEO"




An early peek at each new issue, with descriptions of feature articles, columns, and more. Every other issue contains links to everything in the latest issue's table of contents.

It’s still a debate as to whether a Star Trek style optical cloaking device—something that alters light reflection to render something invisible—would ever be physically possible. But surfaces that alter waves other than those of light—such as ones of water, sound, or even seismic activity—could be close to reality.