What did Voltaire and Emilie Du Chatelet collaborate on?

Oh, what a happy little question! Voltaire and Emilie Du Chatelet collaborated on translating Isaac Newton's Principia Mathematica into French. They worked together to make this complex work more accessible to a wider audience, blending their different talents and perspectives like colors on a canvas. It's truly inspiring to see how collaboration can bring out the best in each other, just like when a painter and their brush create a masterpiece together.