Re:Death Valley hits 130 degrees, near world record
by xenocratus on Saturday July 10, 2021 @01:24PM
(#27794980)
Technically speaking there is no "in the sun" temperature because it would depend on how much thermal energy the thermometer material absorbs from light.
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Re:Death Valley hits 130 degrees, near world record
by lmilcin on Saturday July 10, 2021 @02:20PM
(#27795334)
Exactly. Mass of air has temperature and an object like thermometer can come into equilibrium with air temperature.
On the other hand an object in sunlight will have temperature that has very complex relationship with a lot of parameters including shape of the object or windspeed.
Further, the object will not come into equilibrium and will show a gradient of temperature meaning the readout will depend on where you measure.
Re:Death Valley hits 130 degrees, near world record
by HappyDreamer on Saturday July 10, 2021 @09:56PM
(#27797902)
> including shape of the object or windspeed
I suppose the air (the wind) tends to be colder than objects in the sun, since most sunshine pass straight through the air.
A way to investigate this, is to step barefoot on flat black stones, in the summer sunshine