The shadow length rule

About this item

Title

The shadow length rule

Content partner

Manatū Taonga, the Ministry for Culture and Heritage

Collection

Te Ara - The Encyclopedia of New Zealand

Description

The most important factor controlling UV radiation is the sun's angle above the horizon. At low angles, the sun's rays pass through much more of the atmosphere, reducing the radiation. As a rule of thumb, if the length of your shadow is more than twice your...

Format

Image

Creator

New Zealand Ministry for Culture and Heritage Te Manatu Taonga

Contributing partner

Te Ara - The Encyclopedia of New Zealand

URL

https://teara.govt.nz/en/diagram/6157/the-shadow-length-rule

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