हॉस्पिटल में हरे रंग के कपडे का इस्तेमाल क्यों किया जाता है ? - Science of Green Dress - TEF Ep 59

2812541 views

226583

4625

Do you know the scientific reason why deep green colour is used in hospital related objects like dresses, curtains? Did you know NASA scientists have begun to ...

Latest Video