Nobody’s Exactly Sure How Much A Kilogram Is Right Now Yes, it’s only micrograms of difference, but it’s still really weird: until 2018, the kilogram is defined as “the weight of this physical object”. So what happens when that object changes? Facebook Prev Article Next Article Discover Checkout these cool gadgets... Related Posts 10 Things We Didn’t Know 100 Years Ago What Is in a Meteor Crater? Why is all Sand the Same? Why 60 Seconds in a Minute ? And 60 Minutes in an Hour ? The Indian Sage Who Discovered ATOMIC Theory 2,500 Years Ago Cryonics: Could We Really Bring People Back to Life?