Shadow Bands
A phenomenon called shadow bands is often seen in the minutes and seconds leading up to and following totality. To view this, lay a white cloth down on the ground; this will create a uniform background, allowing these subtle, wavy lines of alternating light and dark to become visible. Shadow bands can also be seen on sidewalks, the sides of buildings, or other flat surfaces. This effect is caused by the Earth’s atmosphere refracting beams of sunlight as the Moon covers or uncovers the Sun.
