All experiences

• Newton’s CradlePull back steel balls, let go and feel momentum ripple down the row.
• Elephant ToothpastePour a catalyst into peroxide and send a fountain of foam skyward.
• Diwali LightsLight diyas around a rangoli, wave a sparkler and fill the sky.
• Bubble Sheet PoppingSqueeze, pop and swipe endless sheets of 3D packing bubbles.
• Domino RallyLay wooden dominoes on the floor, tip the first and hear the run fall.
• Koi PondFeed koi in a Japanese garden: tap the water and they rise to gulp.
• Double Pendulum ChaosPose a double pendulum, drop it and see a twin 0.001° away split off.
• Lorenz AttractorDrop probe clouds into the butterfly of chaos and watch them part.
• Loy Krathong River of LightsFloat candlelit krathongs on a moonlit river and watch them drift.
• Rain on a PondTap raindrops onto a garden pond, fling pebbles and trail a finger.
• Red Cabbage pH RainbowPour household liquids into cabbage juice and make a pH rainbow.
• Solar System in MotionDrag planets onto new orbits and fling new worlds on real gravity.
• Starling MurmurationFly a falcon at a swirling flock of starlings over a sunset roost.
• Wave Pool and Rubber DucksSplash the water to herd bobbing rubber ducks into the striped ring.
• Flame Test ColoursHold metal salts in a Bunsen flame and read their spectral lines.
• Galaxy CollisionAim two spiral galaxies at each other and pull out tidal tails.
• New Year FireworksCount down to midnight and fill a harbour sky with fireworks.
• Party Balloon PopSqueeze floating helium balloons until they pop, round after round.
• Pendulum WavePull back fifteen pendulums, let go and spot snakes, rows and order.
• Synchronous FirefliesFlash your light at hundreds of fireflies and pull them into step.
• The Butterfly EffectStart two twins a millionth apart and see how soon they part ways.
• Weather Balloon to the Edge of SpaceFill a weather balloon, let it go and see it swell until it bursts.
• Geese in V FormationSlide geese into each other’s upwash and send them to the front.
• Lunar New Year FireworksLight firecrackers and fill the sky with red and gold fireworks.
• Mandelbulb Fractal FlightDive into a bronze Mandelbulb, a 3D cousin of the Mandelbrot set.
• Metronome SynchronisationStart five metronomes out of step and hear them settle on one beat.
• Soda GeyserDrop mints into a cola bottle and launch a foaming fountain.
• The Three-Body ProblemNudge three stars on one gravity: from a figure-eight to pure chaos.
• Tornado VortexSteer a twister over farmland and lower its cloud base to touch down.
• Wax Motion LampDrag glowing wax blobs, merge them and tune the bulb of a motion lamp.
• Fish School and SharkSteer a shark into a sardine school and see the fish part around it.
• Gravity SlingshotLaunch a probe past a giant planet and steal a little of its speed.
• Iodine Clock ReactionPour solution B into four beakers and see them snap to blue-black.
• Lightning StormCall down lightning and count the seconds until the thunder arrives.
• Ripple Tank InterferenceSet two dippers rippling and find the lines where the waves cancel.
• Sky Lantern FestivalHold a glowing paper lantern until it tugs, then let it rise.
• Sunflower Golden AngleChange the angle between seeds and see why sunflowers use 137.5°.
• Zen Sand GardenRake calm grooves into fine sand around mossy stones.
• Aurora BorealisStir up the northern lights over a frozen lake and set off substorms.
• Basketball Free ThrowsShoot free throws on a park court and find the arc that drops in.
• Black Hole Accretion DiskFeed a black hole and watch its glowing disc swirl into the dark.
• Chladni Plate Sand PatternsBow a metal plate and watch sand gather into the patterns of sound.
• Hot Ice: Instant CrystalsPour hot ice onto a seed crystal and build a warm crystal tower.
• Jellyfish BloomStartle and push pulsing jellyfish, and make a crystal jelly glow.
• L-System BonsaiPrune, water and bend a bonsai grown from a few rewriting rules.
• Ramadan LanternsLight fanous lanterns in an old lane and swing their star patterns.
• Buckyball (C₆₀)Pluck a C₆₀ carbon to ring the cage, then count its 12 pentagons.
• Humpback Whale Bubble-Net FeedingSwim a humpback round a herring school and trap it in bubbles.
• Kite Festival (Makar Sankranti)Fly a patang over sunny rooftops among dozens of kites.
• Office Paper TossToss crumpled paper into the bin while a desk fan blows it off course.
• Perseid Meteor ShowerCatch Perseid meteors as they streak and trace them back to Perseus.
• Rainbow MakerAim a garden hose, move the sun and find the rainbow’s 42° circle.
• Trebuchet EngineerTune an oak trebuchet by hand, then pull the trigger and let fly.
• Turing PatternsPaint on a fish’s skin and watch spots and stripes form by themselves.
• Catapult CastleFire a timber catapult and topple a mock castle of wooden crates.
• Coral Reef AquariumFeed reef fish, visit the clownfish and see how heat bleaches corals.
• DNA Double HelixPull DNA’s strands apart, swap base pairs and heat it until it melts.
• Holi Colour SplashThrow clouds of gulal and splash white walls with colour.
• Pendulum Clock EscapementSwing a brass pendulum, wind the weight and regulate a real clock.
• Volcano EruptionPump magma into an island volcano and open vents on its slopes.
• Christmas Snow GlobeShake a glass snow globe and watch the flakes swirl and settle.
• Fireworks Colour LabFire one metal salt at a time and read its light in a spectroscope.
• Frog Lily-Pad JumpHop a pond frog across the water, pad to pad, snapping dragonflies.
• Gyroscope PrecessionPull the string of a toy gyroscope and see it circle instead of falling.
• Ocean Waves and LighthouseSweep up a wind round a lighthouse and see long waves outrun short.
• Binary Star DanceDrag two stars into new orbits and fling in a planet with two suns.
• Rössler AttractorPull one lever: one loop doubles, doubles again, then turns to chaos.
• Aizawa AttractorDrop probes on a glowing shell and watch them shoot up its core.
• Kepler’s Laws: A Comet’s OrbitDrag a comet onto new orbits and see Kepler’s three laws at work.
• Saturn’s Rings and Shepherd MoonsMove Saturn’s moons and throw moonlets through its icy rings.
• Thomas AttractorDrop probes into a looping knot and set them loose in a labyrinth.
• Halvorsen AttractorDrop probes into a three-lobed knot made by one rule used three ways.
• Jupiter’s Moons in ResonanceDrag Jupiter’s moons and hear their 1:2:4 beat hold or break.
• Chua’s Circuit Double ScrollTune a chaotic circuit with a knob and drop probes on its scope trace.
• Lagrange PointsPlace asteroids at the five spots where they ride along with a planet.
• Chen AttractorDrop probes into a fiery cousin of Lorenz’s butterfly, twice as wild.
• TRAPPIST-1: Seven Worlds in RhythmDrag seven Earth-sized planets round a red dwarf and hear their tune.
• Earth, Moon and TidesDrag the Moon and watch it raise two ocean bulges on a spinning Earth.
• The Roche LimitCarry a rubble-pile moon too close and watch tides tear it into a ring.
• Harmonograph Drawing MachinePush a swinging table and let a pen draw spirals, stars and roses.
• How a Tsunami GrowsRaise the sea floor in a 3D diorama and see the wave grow at the coast.
• Singing Glass HarpRub the rims of water-tuned wine glasses and make them sing.
• Triple PendulumPose three linked arms, let go and trace the tip’s whip in light.
• Coupled PendulumsSwing one pendulum by hand and see its energy pass to its neighbour.
• Menger SpongeCarve a cube into a sponge with endless surface and almost no volume.
• Wind ChimesSwipe a breeze through porch wind chimes, or tap the tubes yourself.
• Wind Turbine and the Betz LimitMake the wind, steer the rotor and pitch the blades of a turbine.
• Archery in the WindRead the wind flags, draw your bow and land arrows in the gold.
• Barnsley FernCurl, plant and follow a fern drawn by random dots and four rules.
• Foucault PendulumSwing a museum pendulum and let Earth’s turning topple the pins.
• Snowflake GrowthSteer a growing snowflake through a cloud and shape its crystal.
• Arcade Ramp BallRoll wooden balls up the lane, over the hump and into the rings.
• Möbius StripSet an ant on a paper Möbius strip, then cut the loop down the middle.
• Spring PendulumBounce a ball on a spring and see the bounce turn into a swing.
• The Water CyclePush clouds over a mountain and follow one drop round the water cycle.
• Cornhole TossToss bean bags at a backyard cornhole board and slide one into the hole.
• Hurricane from SpaceSteer a hurricane from orbit, start new storms and cross the equator.
• Kapitza’s Upside-Down PendulumShake a pendulum’s pivot fast enough and it balances upside down.
• Klein BottleWalk an ant through a glass bottle with no inside, then split it in two.
• Earthquake P and S WavesSet off quakes and time the P and S waves at three seismographs.
• Game of Life in 3DPoke and seed glowing cells in a glass tank and see 3D Life evolve.
• Swinging Atwood’s MachineA light swinging ball holds up a heavy weight, tracing wild loops.
• Water Balloon TossLob water balloons to a friend who steps back after every catch.
• Double-Slit Water WavesSlide two slits in a ripple tank and find bright and still fringes.
• Monsoon RainTurn the calendar and bring the monsoon rain in from the sea.
• The Five Platonic SolidsFold plywood nets into the five Platonic solids and check Euler’s rule.
• Standing Waves on a StringShake a cord at just the right pitch and see standing loops appear.
• Why Sunsets Are RedDrag the sun down to the sea and fire photons through the sky.
• Doppler Effect RipplesDrag a buzzing dipper through a ripple tank and see its ripples bunch.
• Steam Engine CrankOpen the steam valve, spin the flywheel and tame a mill engine.
• Baking Soda VolcanoPour vinegar into a baking soda volcano and make the lava foam.
• Planetary Gear SetHold the ring, sun or carrier, drive another, and change the gear ratio.
• Briggs–Rauscher Oscillating ReactionPour three clear solutions together and make the colour pulse.
• Car DifferentialCrank a cutaway car axle and hold its wheels to see the differential.
• Chemical GardenDrop metal-salt crystals into water glass and grow coloured tubes.
• Pulley Lab: Mechanical AdvantageHaul a crate with a block and tackle: pulleys trade force for rope.
• Archimedes’ ScrewCrank an Archimedes’ screw and lift pond water to a garden.
• Copper Plating a NailHang iron nails in copper sulfate and watch copper coat them.
• Geneva DriveCrank a Geneva drive and feel smooth turning become stop-start steps.
• Glow Stick ChemistrySnap, shake and dunk glow sticks in ice and hot water to compare.
• Jansen Linkage WalkerCrank or wind-walk a twelve-legged walker along a beach.
• Splitting Water with ElectricitySplit water with electricity and collect hydrogen and oxygen 2 : 1.
• Water Molecule in 3DPull water’s hydrogens and click neighbours on with hydrogen bonds.
• Methane: A Perfect TetrahedronPull methane’s hydrogens, hear the bonds ring and find its 109.5°.
• Carbon Dioxide MoleculeBend CO₂ and tune an infrared lamp to find the light it absorbs.
• Ammonia MoleculePush ammonia’s nitrogen through its hydrogens and flip it inside out.
• Benzene RingStretch and bend a benzene ring and feel it spring back flat.
• Salt Crystal LatticePull ions, fill the gaps with Na⁺ and Cl⁻, and melt table salt.
• Diamond vs GraphitePull diamond’s rigid atoms, then slide and peel graphite’s sheets.
• Why Ice Floats: The Ice CrystalPull ice’s hydrogen bonds, then jiggle it until the lattice melts.
• Sulfur Hexafluoride: The OctahedronPull fluorines off SF₆ and watch the rest spread into VSEPR shapes.
• Honeybees and FlowersPlant flowers, move the sun and read honeybees’ waggle dances.
• Bats Leaving the Cave at DuskStir bats out of a cave at dusk and fly a hawk into their spiral.
• Monarch Butterfly MigrationGuide migrating monarchs through wind and thermals to a fir roost.
• Sardine Bait BallJoin dolphins, sharks and diving gannets around a swirling bait ball.
• Emperor Penguin HuddleCarry emperor penguins, turn the wind and see the huddle share warmth.
• Ant Colony TrailsDrop sugar, wipe out scent trails and see ants find the shortest path.
• Glowing Plankton WavesStir a night sea full of plankton and make the waves glow blue.
• Sea Turtle HatchlingsHelp hatchlings find the moonlit sea by switching off the beach lights.
• Salmon Leaping UpstreamAim a sockeye salmon’s leap and launch it up a mountain waterfall.
• Hummingbird HoveringGuide a hovering hummingbird to flowers and see its wingbeat slowed.
• Fourth of July FireworksLaunch red, white and blue fireworks over a calm summer lake.
• Bonfire Night FireworksLight a rocket and a Catherine wheel with a portfire by a bonfire.
• Bastille Day FireworksFire blue, white and red shells around an iron tower by the river.
• Hogmanay FireworksFire midnight shells from a castle and time the boom in cold air.
• Lantern Festival (Yuanxiao)Pull red lanterns on a rope and see the swing pass along the row.
• Mid-Autumn Moon and LanternsSwing shaped lanterns under the full moon and find their resonance.
• Hot-Air Balloon FiestaFire the burner, climb into new winds and fly a balloon at dawn.
• Christmas Tree DecoratingHang swinging baubles on a big fir in a snowy village square.
• Halloween Jack-o’-LanternsLight carved pumpkins on a moonlit porch and lift their lids.
• Día de Muertos Marigold PathScatter marigold petals to make a path to a glowing ofrenda.
• Hanukkah MenorahLight the Hanukkah candles in a window, one more each night.
• Songkran Water SplashSend arcs of water across a Thai riverside, or pour it gently.
• Onam Pookalam Flower CarpetFill the rings of a symmetric flower carpet, petal by petal.
• Pongal: The Pot That Boils OverTend the fire under a decorated pot until the milk boils over.
• Navratri Dandiya RhythmStrike your dandiya sticks in time with the dhol on a garba night.
• Easter Egg RollFlick dyed eggs down a spring grass bank and see them curve and wobble.
• Carnival Confetti ParadeFire confetti over a colourful Brazilian street and play samba drums.
• Acid–Base TitrationTurn a burette’s stopcock and catch the faint pink end point.
• Erosion Stream TablePour water down a sand table and carve rivers and deltas.
• Galton BoardDrop steel balls through brass pins and tilt the board to skew the odds.
• Hermit Crab ShellsDrop empty shells in a rock pool and set off hermit crab house swaps.
• Lunar LanderFly a lander down to a pad on the Moon and touch down gently.
• Parade BalloonsSteer giant helium parade balloons down a city avenue against the wind.
• Pool BreakPull back the cue, break the rack and pot balls on a real pool table.
• Beaver DamBuild a beaver dam from branches and mud and raise a forest pond.
• Ten-Pin BowlingSet your line, swipe the ball and hook it into the pins for a strike.
• Chameleon TongueTap a cricket and a chameleon fires its tongue; walk it into the sun.
• Curling StonesSlide granite stones down the ice, make them curl and sweep them home.
• Block TowerPull wooden blocks from a tower and stack them on top without a crash.
• Spider Web BuilderLay the threads of an orb web, let the spider spin it, then catch a fly.
• Gingerbread HouseGlue gingerbread walls with icing, get the roof on and decorate.
• Magnet Field LinesSprinkle iron filings round magnets and plot the field with compasses.
• Moon Crater MakerThrow asteroids at the Moon and see what size of crater each one digs.
• Circuit BuilderPlug leads between a battery, lamps and switches to light them up.
• Optics BenchSlide a candle, lens and screen to focus an upside-down flame.
• Cloth in the WindGrab a silk scarf on a washing line and play with the breeze.
• Dreidel SpinFlick a wooden dreidel, watch it precess and play for chocolate coins.
• Paper ChromatographyDot black inks on paper, let water climb it and see the colours split.
• Rocket to OrbitFly a two-stage rocket from the pad into a circular orbit.
• Sandcastle and the TideBuild a sandcastle on a golden beach and see how long it lasts.
• Spiral Gear ArtRoll a toothed wheel round a ring with a pen and draw roses and stars.
• Buoyancy TankDrop wood, ice, steel and an egg in a tank and squeeze a diver.
• Roller Coaster BuilderDrag the track of a steel coaster and ride hills, valleys and loops.
• Bird Feeder GardenFill garden feeders with seed, peanuts or nectar and see who visits.
• Space Station DockingSteer a capsule to a space station’s port and dock gently.
• Butterfly GardenPlant pots of flowers and see which British butterflies come to feed.
• Dragon Boat RaceTap in time with the drum to paddle a dragon boat down the river.
• Eclipse MakerSteer the Moon to make its phases, a solar eclipse and a blood Moon.
• Gas Syringe: Boyle’s LawSqueeze a sealed syringe of air, warm it and read the pressure gauge.
• Puzzle CubeTurn the faces of a real 3×3 cube, scramble it and solve it again.
• Seasons and the Tilted EarthDrag the Earth round the Sun and tilt its axis to make the seasons.
• Archerfish SharpshooterAim an archerfish’s water jet and knock insects off mangrove leaves.
• Cloud in a BottlePump up a bottle, pull the stopper and make a cloud appear.
• Density TowerPour five liquids into a tall glass and drop things into the layers.
• Mars Rover DriveDrive a six-wheeled rover over Martian dunes and rocks to its targets.
• Rangoli DesignerPour coloured powder into a mirrored rangoli at a doorstep on Diwali.
• Soap Film SurfacesDip wire frames in soap and stretch films into minimal surfaces.
• Stone SkippingTilt, spin and flick a flat stone to skip it across a golden lake.
• Paper Plane GliderPick a dart or a glider, bend its flaps and throw it across the park.
• Mini GolfPutt round three garden holes, over a bridge and past a windmill.
• Tin Can AlleyThrow bean bags at a pyramid of tin cans at a fairground stall.
• Pepper and SoapTouch peppered water with a soapy finger and send the pepper flying.
• Plate TectonicsPush and pull the Earth’s plates to raise mountains and open oceans.

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