I (non) segreti dell'oro - perché è sempre prezioso nei secoli?

All the gold ever mined in human history would fill four Olympic-sized swimming pools. Four. Yet it's worth nearly €28 trillion, as much as the entire GDP of the United States. Rare and ductile, gold doesn't rust or oxidize like other metals, can be easily worked, and represents an emergency parachute and a safe haven for states and individuals. How is this possible? Why is it so important? And above all: where does gold come from? Because it wasn't formed on Earth. It came from space, produced by the collision of neutron stars billions of years ago. In this video, we explain why gold is so valuable from a chemical and historical perspective, how much it is worth today, how its price has changed over the last 10 years (from $1,060 to over $3,200 an ounce), how many gold reserves Italy has (spoiler alert: we're third in the world, ahead of Russia and China), where it comes from (supernovae, neutron stars, asteroids), how gold deposits are formed, and where the planet's largest mines are located. #adv #AmazonBooks To purchase books on Amazon, click here: Gold: https://www.amazon.it/dp/8815274146?&... A Treasure on the Ground Floor: https://www.amazon.it/dp/8830901350?&... The Matter of the World: https://www.amazon.it/dp/8829792357?&... 00:00 All the Gold in the World: How Much Is It Worth 01:47 Why Gold Is So Precious 03:07 The Extraordinary Malleability of Gold 04:16 How Rare It Is and Why It Can't Be Replicated 05:47 Why Countries Store Gold Reserves 07:20 How Much Has Been Mined Throughout History 08:34 How Much Gold Is Still Left Underground 10:16 The Countries with the Largest Reserves: Italy's Position 11:34 Why Italy Stores Gold Abroad 12:08 Why the Price Has Risen 16:14 Where Gold Comes From: Supernovas and Kilonovas 19:17 How It Arrived on Earth 21:02 How Much Gold Is in the Earth's Core 21:40 The Largest Gold Mines in the World 23:06 How It Is Mined and Its Environmental Impact 24:09 Gold in Italy: The Ancient Piedmont Mines 24:47 "Star Matter" in Your Hands OUR RECOMMENDED VIDEOS:    • Tecniche per riconoscere l’oro: annusarlo ...      • La scienza dei diamanti: approfondimento t...   #geopop #gold #goldvalue