https://teddyrookbook.com/science-lab/Recent content in Science Lab on Teddy Rook Bookhttps://teddyrookbook.com/img/share.jpghttps://teddyrookbook.com/img/share.jpgHugoenhttps://teddyrookbook.com/science-lab/book-cart/Mon, 01 Jan 0001 00:00:00 +0000https://teddyrookbook.com/science-lab/book-cart/A physics lab with a chain of linked books on a rolling shopping cart: change gravity, wind, stiffness and weight, watch the live numbers, and stand the books up. Then play the game: 24 levels, gentle at first, to swing 2 to 25 books up and balance them on top.https://teddyrookbook.com/science-lab/atom/Mon, 01 Jan 0001 00:00:00 +0000https://teddyrookbook.com/science-lab/atom/Build atoms from protons, neutrons and electrons, and watch the element, the charge, the electron shells and the stability of the nucleus change as you go. Learn what isotopes and ions are, why some nuclei are radioactive, and how half-lives date ancient wood and bone.https://teddyrookbook.com/science-lab/circuits/Mon, 01 Jan 0001 00:00:00 +0000https://teddyrookbook.com/science-lab/circuits/Wire batteries, bulbs, switches, resistors, an LED and meters on a breadboard grid, and watch the current flow. Learn series and parallel circuits, Ohm's law, why an LED needs a resistor, and why short circuits are dangerous.https://teddyrookbook.com/science-lab/cube/Mon, 01 Jan 0001 00:00:00 +0000https://teddyrookbook.com/science-lab/cube/Enter the colors of your 2×2, 3×3 or 4×4 twisty puzzle cube and get the moves to solve it, played on a 3-D cube. Fewest moves or the beginner method for the 3×3, with a notation guide, practice cases, common algorithms, why some cubes can't be solved, and a timer.https://teddyrookbook.com/science-lab/gas/Mon, 01 Jan 0001 00:00:00 +0000https://teddyrookbook.com/science-lab/gas/Squeeze, heat and mix a box of bouncing helium and argon atoms, with a live pressure gauge, speed histogram and P–V graph. Learn why temperature is motion, why pressure is collisions, and why a bike pump gets warm.https://teddyrookbook.com/science-lab/magnetic-bottles/Mon, 01 Jan 0001 00:00:00 +0000https://teddyrookbook.com/science-lab/magnetic-bottles/Turn, slice and mirror-test two exact 3-D magnetic bottles for fusion plasma from a new 2026 paper. Learn how twisted magnetic fields hold a gas at over 100 million degrees, and why exact solutions help the people who design stellarators.https://teddyrookbook.com/science-lab/chem-lab/Mon, 01 Jan 0001 00:00:00 +0000https://teddyrookbook.com/science-lab/chem-lab/Test kitchen liquids with four indicators, neutralize an acid, titrate it drop by drop and speed up a reaction on a safe on-screen chemistry bench. Learn what pH means, why a titration curve jumps, and why heat and catalysts make reactions faster.https://teddyrookbook.com/science-lab/optics/Mon, 01 Jan 0001 00:00:00 +0000https://teddyrookbook.com/science-lab/optics/Put lasers, lamps, sunlight, mirrors, lenses, prisms and a raindrop on a light table and watch the rays bend and bounce. Learn Snell's law, total internal reflection, how lenses focus and make images, and why a rainbow sits 42° from the point opposite the Sun.https://teddyrookbook.com/science-lab/orbits/Mon, 01 Jan 0001 00:00:00 +0000https://teddyrookbook.com/science-lab/orbits/Fire Newton's cannon, throw satellites into orbit, fly to the Moon and slingshot past a planet, all with real gravity. Learn why an orbit is a fall that never lands, and see Kepler's laws come out of Newton's.https://teddyrookbook.com/science-lab/pendulums/Mon, 01 Jan 0001 00:00:00 +0000https://teddyrookbook.com/science-lab/pendulums/Watch fifteen pendulums dance in and out of step, pass a swing between two pendulums joined by a spring, and push a swing at just the right rhythm. Learn what sets a pendulum's beat, why big swings run slow, and how small pushes in time build a big swing.https://teddyrookbook.com/science-lab/ecosystem/Mon, 01 Jan 0001 00:00:00 +0000https://teddyrookbook.com/science-lab/ecosystem/Run a meadow of grass, rabbits and foxes, and watch their numbers rise and fall in turns beside the Lotka–Volterra equations. Learn why predators peak after their prey, why hunters that are too good starve, and how a refuge keeps everyone going.https://teddyrookbook.com/science-lab/rocket/Mon, 01 Jan 0001 00:00:00 +0000https://teddyrookbook.com/science-lab/rocket/Build a rocket from engines, tanks and up to three stages, then fly it from the equator to space, to orbit or away from Earth. Learn the rocket equation, why rockets drop stages, and why orbit means going sideways fast.https://teddyrookbook.com/science-lab/night-sky/Mon, 01 Jan 0001 00:00:00 +0000https://teddyrookbook.com/science-lab/night-sky/Set any date from 1800 to 2050 and see where the planets really were, watch the Moon go through its phases, and line up the Sun, Earth and Moon for an eclipse. Learn why planets seem to go backwards, why the Moon has phases, and why eclipses don't happen every month.https://teddyrookbook.com/science-lab/elements/Mon, 01 Jan 0001 00:00:00 +0000https://teddyrookbook.com/science-lab/elements/An interactive 3-D periodic table of all 118 elements. Spin each atom as a shell model or as real orbital clouds, read its properties and spectral fingerprint, compare two elements, take the quiz, print cards and a wall table, and hear the elements as sound.https://teddyrookbook.com/science-lab/trebuchet/Mon, 01 Jan 0001 00:00:00 +0000https://teddyrookbook.com/science-lab/trebuchet/Tune a medieval counterweight trebuchet and hit a tower 100 to 300 meters away. Learn how a falling weight, a lever and a sling turn stored energy into speed, and why air drag makes the best angle lower than 45°.