Ramakrishnan Vasudeva
@rvasudeva.bsky.social
Love science🔬, experimental biologist, evolutionary ecologist, walking, Carnatic music, University of Exeter, Animal Behaviour, travelling, insects, reproduction, sexual selection, and gardening
Reposted by Ramakrishnan Vasudeva
Here’s a video that shows the effect. These are polarization filters taped together. As the direction of the filters aligns with the direction of polarization in the sky, they block more light, hence the darkening of only some filters as they’re rotated.
www.youtube.com/watch?v=TP5J...
6/7
www.youtube.com/watch?v=TP5J...
6/7
Show Me Some Science! Polarization of the Sky
YouTube video by CNS Little Shop of Physics
www.youtube.com
October 13, 2025 at 1:10 AM
Here’s a video that shows the effect. These are polarization filters taped together. As the direction of the filters aligns with the direction of polarization in the sky, they block more light, hence the darkening of only some filters as they’re rotated.
www.youtube.com/watch?v=TP5J...
6/7
www.youtube.com/watch?v=TP5J...
6/7
Reposted by Ramakrishnan Vasudeva
While ants can’t see details and obstacles very well, for them these polarization patterns on the sky are clear as day, and they can use them to find their way around. So human sailors aren’t the only celestial navigators—ants use cues from the sky to get home too!
7/7
7/7
October 13, 2025 at 1:10 AM
While ants can’t see details and obstacles very well, for them these polarization patterns on the sky are clear as day, and they can use them to find their way around. So human sailors aren’t the only celestial navigators—ants use cues from the sky to get home too!
7/7
7/7
Reposted by Ramakrishnan Vasudeva