Ever wonder how helicopters, gold, mirrors, contact lenses, toothpicks, erasers, pencils, and more are made? Then look no further than these videos from Discovery Networks. Continue reading to see how ten interesting things are made — gold image above via.

1. Helicopters

2. Gold

3. Mirrors

4. Contact Lenses

5. Toothpicks

6. Erasers

7. Pencils

8. Highlighters

9. Paper

10. Drinking Water