Use Polarizing Film to Locate the Sun on Overcast Days

Locate the sun on overcast days with this ingenious Viking invention.

Read more on MAKE

The post Use Polarizing Film to Locate the Sun on Overcast Days appeared first on Make: DIY Projects and Ideas for Makers.

from Make: DIY Projects and Ideas for Makers http://ift.tt/2i2UkUV
via IFTTT