Interactive exploration
Machines & MotionHydraulic brakes
How does a little lever stop a spinning wheel?
Squeeze a hydraulic brake. See inside the caliper, change piston sizes, and discover how pressure becomes force.
Pressure & fluids
Explore how a force spread over an area acts through connected liquids.
Background on this idea
Interactive explorationCities & TransportAirplane wings and lift
How can a wing turn moving air into lift?
Run a virtual wind-tunnel test. Tilt a symmetric airfoil, probe both surfaces, and build the whole lift force from pressure around the wing.
Interactive explorationBody & HealthKidneys and urine
How do kidneys keep useful things while making urine?
Inspect real urinary anatomy, follow a glucose marker out of blood and back again, and discover three different crossings with a ledger that never loses a marker.
Interactive explorationBody & HealthThe heart and blood circulation
Where does your blood go after a heartbeat?
Turn a real anatomical model in your hands. Reveal its chambers, meet the four valves, then follow the blood moving through both sides of the heart.
Interactive explorationBody & HealthLungs and breathing
How do your lungs pull in a breath?
Move through a breath, connect space to airflow, then cross the tiny boundary where oxygen enters the blood.
Interactive explorationPhysics, Light & SoundFloating, sinking and buoyancy
How can a heavy ship float?
Load a tiny barge and watch its waterline rise along the hull. Then lower a block through a tank to connect water pressure with buoyancy.
Interactive explorationEveryday TechnologyRefrigerators and heat pumps
How does a fridge move heat out of a cold space?
Look through a cold room and follow its refrigerant loop. Count the heat removed and the work added, then try putting both sides in the same room.