A firefighter can use an infrared camera/viewer for several things, primarily for finding people trapped in a dark or smoke-filled room (where ordinary visibility is zero), and for finding hot spots behind structural members, where fire may be hidden.
"Courageous firefighter" isn't a word.
A firefighter extinguishes fire to keep people safe.
foam
Infrared radiation is an electromagnetic wave.
the light you use to heat food is an examle of a infrared wave.
a basic firefighter does not use any math but if you are an EO (Engine operator) yes you with use math because you have to do pump operations and hydraulics.
a firefighter
Fire Sciences
Yes, it can take pix in infrared.
Astronomers use infrared light to map the dust in between stars.
The plural of fireman is firemen. If you want to use inclusive language, then you can say firefighter and firefighters.
you can use infrared photographs catch amazing picture