These phones are especially made for people who work in unpredictable environments or for those users who have a history of dropping their handsets, unintentionally. (gogi.in)
This might change soon, however, as significant research is being devoted to improving the performance of robots in physically unpredictable environments. (fortune.com)
Most performances can be re ‑ formatted to a dynamic outdoor installation which gives students the chance for public performance and the experience of managing unpredictable environments. (educationbusinessuk.net)