Hello everyone, welcome to another episode of BBN Sport. The Paris Olympics has come to an end, but stories of the Olympics is still ongoing.

Some of the winning athletes haven't even made it home yet, but their Olympic medals are already rusting. What's going on here? Let's take a closer look!

This is a video posted by American skateboarder Nyjah Huston. He claims that just 10 days after winning his bronze medal, it started to deteriorate, with the surface appearing dull and rusted. Speaking of Olympic medals，

Some people might think that Olympic medals are made of pure gold, silver, or bronze. But the truth is, they're not. I know it sounds crazy, but the gold medal contains only about 1% gold. So here's the question: Have Olympic medals never been made of pure gold since the very first games?

To answer this question, we need to talk about the history of Olympic medals. In fact, during the first two Olympic Games, the concept of a gold medal didn't even exist.

For example, in the first Olympic Games, champions were awarded silver medals, while in the second Games, winners received valuable pieces of art instead.

It wasn't until the third Olympic Games, the 1904 St. Louis Olympics, that the first gold medal in Olympic history was introduced.

At that time, the gold medals were indeed made of pure gold. This practice continued in the following fourth London Olympics and the fifth Stockholm Summer Olympics, where the medals were also crafted from pure gold.

But things changed over time. As the number of participants grew and gold prices soared, the cost of producing pure gold medals became increasingly prohibitive. According to the current minimum standards set by the International Olympic Committee,

all Olympic medals must have a thickness of at least 3 millimeters and a diameter of at least 60 millimeters. Given that 24K gold has a density of 19.3 grams per cubic centimeter, the cost of the gold needed to produce a single medal would be around $62,000.

With 329 gold medals awarded at the Paris Olympics, the total cost for the gold alone would be nearly $30 million.

So, the main reason Olympic gold medals are not made of pure gold is the high cost. Ultimately, Olympic medals represent honor and achievement; although they might not worth much in material terms, their value in people's hearts is priceless. That wraps up today's Olympic news. See you next time!