We have sought to improve our lives and the lives of those around us through invention and discovery. From the wheel to the internet, the human race has been blessed with a seemingly endless array of technological advancements. And many of these ended up being used to kill and/or harm our fellow men.

This list is about those inventions and discoveries that went from mundane to  deadly. From tuna to war, from weevil killer to gas, from atomic discovery to explosive innovation, from immortality denied to warfare enabled, from heroin to gun silencers, from laughing gas to flamethrowers, and from nitroglycerin to the heart’s best friend. Some of these were invented as harmless, but a couple are weapons that, we found out, could also be a force of good.

We invite you to explore these twelve stories of innovation and invention, and to consider the ways in which they have changed our world.

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