Blaze of Steel: química explosiva - con Andrew Szydlo
1:47:04
The volcanic chemistry of sulfur - with Andrew Szydlo
1:42:57
The Chemistry of Fire and Gunpowder - with Andrew Szydlo
1:57:22
What Matter Makes Up Our Known Universe? | Jim Al-Khalili | Spark
3:05:38
15 Jobs That Take A Lifetime To Master | Business Insider Marathon
2:09:03
2 Hours Of Science Facts About Our Solar System
1:18:30
Andrew Szydlo's Chemistry of Coal
53:19
Einstein's Quantum Riddle | Full Documentary | NOVA | PBS
1:13:35