Norfolk Southern Corp. plans to add hundreds of track-side heat detectors in an effort to improve safety following a derailment that spilled toxic chemicals last month in Ohio.

“Heat injuries are 100% preventable, but they have to be caught early.” The company partnered with Garney this past summer on a dozen jobsites across the country in a range of climates.

Feeling the heat ( Image: Patrick Landmann/Science Photo Library ) Move over spider silk . Butterfly wings are the new "it" material of the animal kingdom, doubling up as ultra-sensitive heat sensors.