A railroad tanker car carrying propane traveled over 3,000 feet when it exploded during a train wreck in Illinois, sheering off a steel tower in it's path. It's the longest flight on record for a propane explosion.
A gyrocompass, invented in the early 1900s, uses a spinning wheel to find true north and isn't affected by magnetism, which makes it useful on steel ships.
Steel is made mostly of iron mixed with a small amount of carbon.
The pedal steel guitar gives country music its signature sliding, crying sound.
The Hang is made of two steel shells joined together, giving it a UFO-like shape.
A waterphone is made of a stainless steel bowl with bronze rods around the edge and water inside.
The Brooklyn Bridge opened in 1883 and was the first steel-wire suspension bridge.