Astronomical telescope & Deviation through prism
45:50
मानव नेत्र (Human eye )
22:02
How the LA wildfires unfolded and what’s needed for recovery | BBC News
1:13:20
प्रिज्म सूत्र तथा दूरी पर स्थित दो लेंसों के समतुल्य लेंस की फोकस दूरी
1:31:20
Simple Microscope & Compound Microscope
56:05
नाभिकीय रिएक्टर (Nuclear reactor)
13:39
Hegseth Gets Hammered During Confirmation Hearing, Trump’s Inauguration Plans & Fire Misinformation
1:33:01
528Hz, Destroying unconscious blockages, Healing Frequency, Cleanse Negative Energy #31
12:16