Knovay builds interactive tools for math and science — where you don't just read a concept, you drag it, tune it, and watch it hold true. Three labs, one home.
Drag the figure and watch each classic theorem stay true — turning a static proof into something you can play with. Every construction is verified to machine precision.
Explore physics field by field. Step into an experiment, launch it, tune the numbers, and watch the laws of nature play out in real time — from projectiles to quantum atoms.
See calculus move. Drag a point, slide a value, and watch slope, area, limits and series unfold — every lab computed live, from the derivative to differential equations.
GeoProof turns the classic results of geometry into living diagrams. Every explorer shows a construction — a triangle, a circle, an inscribed angle, a set of tangents — where the key points are draggable. Grab a vertex and move it, and the whole figure updates instantly while the theorem keeps holding true: the angles of a triangle still sum to 180°, an inscribed angle stays exactly half its central angle, the nine-point circle keeps passing through all nine points. Because every measurement is recomputed live to machine precision, you're not staring at a fixed textbook drawing — you're stress-testing the theorem for yourself.
The library spans 73 explorers across triangles, circles, angles, quadrilaterals, polygons and transformations — from the Pythagorean theorem to Ptolemy, Ceva, the Euler line and 3-D solids. You can search and filter by shape or difficulty, save favourites, follow guided paths that sequence topics into a lesson, and test yourself in a 625-question quiz with retry-missed and adaptive rounds.
Build real intuition by experimenting instead of memorising. Drag the figure until a proof finally "clicks," then check your understanding with the quiz — all free in the browser, with nothing to install.
Drop a live, projector-ready demonstration into any lesson, or embed an explorer straight into your notes or LMS. One tool covers a full curriculum of theorems, with a quiz for practice and quick assessment.
Physica is a collection of 67 hands-on experiments organised into six fields — mechanical, thermal, electromagnetism, optical, modern and fluid. Open one and it behaves like a real bench: press play, then tune the numbers — mass, launch angle, temperature, charge, wavelength — and watch the outcome unfold in real time. Crucially, each simulation is driven by the actual governing equations, so what you see is genuine physics rather than a canned animation: projectiles trace true parabolas, gas molecules reproduce the Maxwell–Boltzmann speed curve, and light through two slits builds up the real interference pattern.
It reaches from everyday mechanics — projectile motion, collisions, pendulums, orbits and Kepler's laws — to the invisible and the exotic: Coulomb field lines, electromagnetic waves, lenses and diffraction, the photoelectric effect, the Bohr atom, special relativity and even a black hole. You can browse by field, search all 67, and star the experiments you want to return to.
See the invisible — fields, waves and forces — made visible, and safely run experiments that would be impossible or expensive in a real lab. Change one variable at a time to feel how the equations actually behave.
Demonstrate any topic live in a lecture, or set the simulators as at-home exploration and virtual lab work. The six fields span most of a physics syllabus, ready to use with no setup or equipment.
Calculo turns the ideas of calculus — the mathematics of change — into things you can drag. Every lab is a small experiment: slide a point along a curve and watch the tangent's slope trace out the whole derivative; add rectangles under a graph and see the Riemann sum squeeze toward the exact integral; walk two probes toward a point and decide whether the limit exists. Nothing is a canned animation — each explorer recomputes the real quantities live, so the slope reads 4.00 exactly where it should and the area lands on its true value. You don't memorise the rule; you watch it happen.
The set spans 23 explorers covering an entire first-year course: limits and the ε–δ definition, derivatives, the chain rule, optimization, related rates and Newton's method; then integrals, area between curves, volumes by disks and shells, arc length and the Fundamental Theorem; and on to Taylor series, infinite series, parametric & polar curves and slope fields. Each runs in a single, distraction-free page with nothing to install.
Get past the symbols by playing with them. Drag first and read the numbers second — when the tangent goes flat exactly where the curve peaks, the meaning of f′(x)=0 lands on its own. It's the whole syllabus, free in the browser.
Project a live derivative, integral or limit and let students watch it respond in real time, or hand them a lab to explore before class. One tool covers differential and integral calculus, ready to use with no setup.
Every concept is something you manipulate — move a point, change a variable — and the result updates live. Understanding comes from doing, not just reading.
Geometry constructions are verified to machine precision, and every physics simulation runs on the real governing equations — accuracy you can trust.
No installs and no account required. Everything runs free in the browser, on any device — for students, teachers, and the simply curious.
Knovay is an independent educational studio building interactive tools that make math and science something you do — not just something you read.