Well - if you look at puranas, they had calculated speed of light long back - https://hinduism.stackexchange.com/questions/12075/the-speed-of-light-taittirya-br

Well - if you look at puranas, they had calculated speed of light long back - https://hinduism.stackexchange.com/questions/12075/the-speed-of-light-taittirya-brahmana-of-the-yajurveda https://hinduism.stackexchange.com/questions/12075/the-speed...