I was fascinated by how whirlpools create a shadow. The turbulence of the water in the whirlpool makes the light refract in different directions, so it doesn't reach the bottom, and you get a circular shadow!#science #physics #smallwonders #natureisbeautiful
I was studying #physics ,soI am very #interested in these movies [投げキス][大笑い] The #MostPowerful #bombs 🎶[目がハート][ロケット]