Me and My Shadow – A Rule-of-Thumb for Safe Sun Exposure
An easy way to tell how much ultraviolet (UV) radiation exposure you are getting is to look for your shadow:
- If your shadow is taller than you are (in the early morning and late afternoon), then your UV exposure is likely to be low.
- If your shadow is shorter than you are (around midday), then you are being exposed to high levels of UV radiation.
Source: http://www.wsanford.com/~wsanford/exo/sundials/shadows.html
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This entry was posted on Monday, January 1st, 2024 at 3:08 am and is filed under Research.
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