sensors

  • This Cheap Sensor Will Tell Your Phone When Food Goes Bad

    This Cheap Sensor Will Tell Your Phone When Food Goes Bad

    Some MIT eggheads invented a very impressive and very inexpensive sensor that stands to protect you against anything from a bomb to a bad pack of beef. And it’s so simple. The new sensor is just a modified near field communication (NFC) chip that can detect the presence of specific gases with the help of…


  • Human-Sensing Fan Only Blows Where There Be People

    Human-Sensing Fan Only Blows Where There Be People

    Nothing puts a strain on your local power grid like a hot, humid summer day. In many cities rolling blackouts are needed to cope with the strain, so it makes sense that companies would start developing smarter cooling devices. Quirky’s Aros air conditioner is leading the charge, but this smarter oscillating fan is pretty clever…