Celebrate the 75th Republic Day with classic movies shot in India before Independence, which are available to stream on OTT. JioCinema and ShemarooMe have the maximum number of films from that time, Prime Video has one, and Netflix has none. You can also go for an Eros Now subscription, for more titles.

There is a great need in healthcare, nanotechnology and other areas to improve our ability to see tiny objects that elude even the most powerful optical systems.