Try human hair to measure humidity - much easier to get than cat guts.does any know how those mantleshelf weather huts worked. A little man came out in raincoat if rain coming or a girl dressed for sunny day emerged if fine.
Also what were they called - i've googled with no luck.
I'm wondering if principle could be applied to novel picaxe weather device.
Subect to debate ;-) - the "sling psychrometer"@papa'
If the air flow is boosted then the temp drop on the wet bulb will be grossly exaggerated!
Should be in still air but not a restricted air space.