6 Chemical Reactions That Changed History A few chemical reactions have altered the trajectory of our history. Facebook Prev Article Next Article Discover Checkout these cool gadgets... Related Posts 3 Ways the Universe Could be Destroyed There’s so much CO2 in the atmosphere that planting trees can no longer save us Oculus’ John Carmack Explains Virtual Reality in 5 Levels of Difficulty What’s the Most Realistic Artificial Gravity in Sci-Fi? Pod Cars of the Past and Future: The Morgantown PRT How We Conquered the Deadly Smallpox Virus