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Ears are delicate organs. Exposure to prolonged, high-volume sounds can permanently damage hearing. Hearing protection is specifically important to those who are constantly exposed to loud sounds, including construction workers, soldiers, and musicians. All kinds of hearing protection are used for different purposes. One subcategory of hearing protection devices is earplugs. Many different types of earplugs exist, but they all do the same job. Earplugs dampen loud sounds and

Metals are typically thought of as solid, rigid materials—and this is usually true. However, many metals are soft, malleable, and can be bent easily. Some are even liquid at room temperature, such as gold and mercury. However, while many metals can warp easily, most cannot return to their original shape. For example, it is nearly impossible to reshape a paper clip after stretching it out. What if there was a metal that could reshape itself back to its original form? Nitinol i

As a drummer, I have developed a fascination with cymbals. I love exploring the various types of cymbals and digging into the techniques used to create them. After looking at hundreds of cymbals, I have discovered that my favorites all have one thing in common: they are made out of bronze. Bronze is an alloy made of the metals copper and tin. Bronze is made by melting and mixing the two metals until a solution is formed. This alloy brings out the best of the two metals’ prope