OSMIUM - The rarest and DEADLIEST precious metal! KickAss Science 3:55 1 year ago 566 325 Далее Скачать
Osmium: The Rarest Precious Metal You've Never Heard Of (Until Now) The Freedom Report 32:42 1 year ago 4 087 Далее Скачать
Top 10 Most Costly Metals On The Planet | Trend It | Trend It 10:54 3 years ago 176 922 Далее Скачать
The most expensive element on Earth: $1 billion per gram! Hashem Al-Ghaili 4:14 5 years ago 1 999 126 Далее Скачать
The 5 Most Valuable Precious Metals in the World Beyond Knowledge 6:03 2 years ago 21 693 Далее Скачать
Osmium - The DENSEST Metal On Earth! Thoisoi2 - Chemical Experiments! 5:48 6 years ago 1 748 551 Далее Скачать
Price Comparison (Most Expensive Substance) Reigarw Comparisons 3:15 6 years ago 31 346 780 Далее Скачать
