Mod-01 Lec-24 Effect of Mass Transfer on Microbial & Fungal Growth

53:23
Mod-01 Lec-25 Effect of Multiple Substrates and Inhibition on Microbial Growth

56:45
Mod-01 Lec-19 Lecture-19-Extraction of Tin

3:47
Science experiments / lessons with Dan # 15 the sink and float experiment

44:28
Mod-01 Lec-11 Lecture-11-Refining of Metals - Physical Methods

55:33
Mod-01 Lec-04 Lecture-04-Mineral Benefication Techniques

13:59
O Grande Engano Sobre a Eletricidade

20:37
O carro mais rápido do mundo VS um guepardo!

19:46