15:42
Neil deGrasse Tyson Teaches You About the Layers of Our Atmosphere
53:58
Decoding the Universe: Quantum | Full Documentary | NOVA | PBS
56:03
Answering Questions About How Black Holes Die, Entropy, & Vacuums
33:08
Çift Yarık Deneyi - Olmaz Öyle Saçma Bilim - Prof. Erkcan Özcan - B11
47:14