HOT ENOUGH FOR YOU?
'(<a href="http://www.j-archive.com/media/2011-05-13_DJ_19.jpg" target="_blank">Sarah of the Clue Crew measures the temperature of an iron.</a>)  You can use a non-contact thermometer to gauge the temperature of something that's too hot to touch; it works by <a href="http://www.j-archive.com/media/2011-05-13_DJ_19a.jpg" target="_blank">measuring the amount of this colorful thermal radiation emitted by a heat source'
infrared