Old steel tools can often be repurposed into new blades through careful forging. In this project, a rusted iron saw is heated in a forge and reshaped into a katana-style sword. The process begins by ...

In this video, we will melt rusty springs into wootz steel. Then we will show the forging of the wakizashi sword. A lot of work was done for this project, we made a bigger crucible than ever before.

Have students brainstorm a list of common uses of metal alloys (e.g., a door frame, a doorknob, or a paper clip). Write these on the board. Discuss with students what characteristics make these metal ...