During long, cold winters in medieval Europe, church organs grew gray, sickly-looking circles that spread over their pipes. People back then believed that this was the work of the devil, but as it turns out, it’s just some pretty simple...

During long, cold winters in medieval Europe, church organs grew gray, sickly-looking circles that spread over their pipes. People back then believed that this was the work of the devil, but as it turns out, it’s just some pretty simple...

Oh Boy, golly gee. What on earth could the red on the flag stand for?

In Mexico City, people reflected on their childhoods, sharing memories of being playful, mischievous, shy, or adventurous, and talking about favorite activities like playing in parks, riding bikes, and collecting toys like Barbies or...

We compare melting points of lead and tin to the melting point of their alloy, solder. By timing how long it takes samples of each to melt, we discover that the melting point of solder is actually lower than those of both lead and tin....

Video Atlas of Asia: This clip looks at the physical features, climate and culture of Mongolia.

This video provides an overview of the importance and uses of tin throughout history. It explains how tin is used in alloys like bronze and pewter, as well as its role in soldering and plating. The video also touches on the significance...

It's time to check out Group 14 on the periodic table, the carbon group. This includes carbon, silicon, germanium, tin, lead, and flerovium. What can we say about their properties, reactivities, and applications? Let's find out!

Let's take a look back at the elements helium, tin, calcium, palladium, and lead.

This short video explains why the Vikings left their own country in search of adventure, new lands to farm and valuables to steel.  It also shows that many Norsemen settled in the countries they raided