Hiding Information in Plain Text

Subtle changes to letter shapes can embed messages Image: Columbia University <!-- @page { margin: 0.79in } P { margin-bottom: 0.08in } A:link { so-language: zxx } --> Computer scientists have now invented a way to hide secret messages in ordinary text by imperceptibly changing the shapes of letters. The…

Making Radio Chips for Hell

Mixer IC works at 500 degrees Celsius, so it can take the heat on the surface of Venus, inside a natural gas turbine, or in the bowels of a 6-kilometer deep oil well Photo: KTH Royal Institute of Technology/University of Arkansas/IEEE There are still some places the Internet of Things…