Zero Shadow Day explained in English
Channel: IUCAA SciPOP
Date: 2020-05-04

Zero Shadow Day occurs in the tropical regions i.e. between Latitudes 23.5 degrees N and 23.5 deg South. 

This video explains the concept of how ZSD occurs and contains some graphics explaining it.

Link to more ZSD resources: 
https://astron-soc.in/outreach/activities/zero-shadow-day/


Zero Shadow Day android app by Alok Mandavgane: 

https://play.google.com/store/apps/details?id=com.alokm.zsd&hl=en_IN