Challenge: Which Particle Wins This Race? | Space Time | PBS Digital Studios

Tweet at us! @pbsspacetime Email us! pbsspacetime [at] gmail [dot] com Comment on Reddit: Help translate our videos! It's time for another t-shirt challenge question! Make sure you're brushed up on your math and high-school level physics before trying this one! There will be 5 winners from each challenge! Do NOT submit to both! Email your answers to: pbsspacetime@gmail.com before 5pm NYC time August 24, 2015. Make SURE you title your email: "Two-particle Newtonian gravity challenge" For the Einsteinian challenge title your email: "Two-particle Einsteinian gravity challenge" Good luck! And we will see you next week on Spacetime for Gabe's final episode. ------------------------------------------------- Let us know what topics you want to learn more about: