This gave rise to the following rhyme/limerick which was quoted several times during the Infrared 100 events last week.
Oh Langley devised the bolometerWho said science can't be fun! Sadly, it seems Langley actually measured the temperature of a cow from a quarter of a mile ... but that doesn't rhyme [Ref]. There are variations and I believe the original rhyme is by Mr Anon.
Which is really a kind of thermometer
Which can measure the heat
From a polar bear's feet
At a distance of half a kilometre