I love the Science and Technology content that the Economist offers, culling neat ideas from all over the world, and explaining them lucidly. Here’s one I thought was especially smart.
Cardkey readers are ubiquitous at almost every office building in America, and the cost of running wires when you want to add an extra card key reader can be prohibitive. December’s technology page has this stunnigly simple idea to make card key based systems cheaper: Just make the cards part of the network. A cool application of the idea of decentralized networking.
Read more at Economist.com Technology Quarterly