Fun Video: Historic Bridge Explosion
The historic Fort Steuben Bridge was demolished last Tuesday in a giant explosion.
The 84-year-old bridge connected three communities in West Virginia, but its condition had been rapidly deteriorating. A bridge of this size (1,584 feet) had to be wrapped in 13 pounds of detonating cords and heavy explosives. Detonating cords are thin, plastic tubing filled with explosive Pentaerythritol tetranitrate (PETN). Because PETN explodes very quickly, it's used to link large explosives together in demolishing large, strong structures.
Life's Little Mysteries: Gift Edition Hardcover Book
Uncover the truth behind more than 100 mysteries that surround us every day with our new hardcover book! Perfect for gifts and classrooms, and suitable for all ages. Some of the included mysteries are:
- Why Do Cats Land on Their Feet?
- How Long Does it Take to Make Petrified Wood?
- What Everyday Things Around Us Are Radioactive?
Find out all of this and much, much more in our NEW hardcover book.
It makes a great gift idea for all ages. more info>>