The Backyard Scientist, an audacious experimenter who often tests out ideas submitted by viewers, poured molten aluminum into the cores of a cantaloupe and a honeydew melon just to see what would happen. As it turns out, the cooled metal came out looking like hand grenades.
Pouring molten aluminum in a watermelon turned out to be really popular, So I poured aluminum in two more melons, honeydew and cantaloupe. It turned out really cool, giving a perfect cast of the inside of a melon. It looked just like a hand grenade!
Earlier this year, The Backyard Scientist poured molten aluminum into a watermelon with fascinating results.