Explore how time and space change at different speeds. Perfect for understanding Einstein's relativity!
Launch Simulation
Einstein's most famous thought experiment comes to life: a clock built from two mirrors and a single photon that reveals why time itself slows down when you move.
What exactly is the 'point of no return' around a black hole, and what decides how big it gets? Find out, then size up a black hole of your very own with our brand-new Event Horizon Calculator.
Ever wonder what happens when you try to push an object close to the speed of light? Hint: Einstein says things get weird! Dive into our brand-new Relativistic Kinetic Energy Calculator to see how super-fast motion rewrites the rules of physics.
Try our interactive simulators to test out the concepts you just read about!
A quick update on our progress and what's coming next to the MM Pop Science blog and lab.
Read Article →Ever wonder why a fast ambulance siren suddenly drops from a high squeak to a deep roar as it zooms past you? Welcome to the magic of the Doppler Effect, a hidden trick of physics that allows us to track speeding cars, predict giant storms, look inside the human body, and even prove that our entire universe is stretching apart!
Read Article →Ever wonder how your brain nails the perfect trajectory to toss a crumpled piece of paper right into the recycling bin? Welcome to the world of projectile motion, where we unmask the secret forces controlling everything from game-winning basketball shots to flying water balloons! Dive in to discover the "magic angle" for maximum distance and see how gravity rules the skies.
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