Collection
Light switches for nerve cells, a telescope made of ice, mirror-image chemistry and interest rates: the 2026 Nobel Prizes to try out.
Apps
The green alga Chlamydomonas swims towards light; its eyespot carries channelrhodopsin. In a nerve cell, blue light opens this ion channel: cations flow in, the voltage jumps above threshold, and each light pulse triggers an action potential. Pulse rate, light intensity and yellow light with halorhodopsin as a brake.
Biology & neuroscienceTry it
A virus with a promoter puts channelrhodopsin into just one cell type. The electrode excites every cell around its tip, light only the labelled ones. A light guide moves the whiskers of a mouse, and in retinitis pigmentosa ChrimsonR plus light goggles make ganglion cells sensitive to light.
Biology & neuroscienceTry it
About 65 billion solar neutrinos pass through every square centimetre each second: light stops in a thumb, neutrinos fly through, and even the whole Earth stops only about one in a hundred billion. Plus the sky map of neutrino sources: diffuse flux 2013, blazar TXS 0506+056, NGC 1068 and the Milky Way.
PhysicsTry it
The neutrino detector at the South Pole to rotate: 86 strings with 5160 light sensors 1450 to 2450 metres deep. A muon drags a Cherenkov light cone through the ice, the sensors light up one after another, and the arrival times give the direction. Plus track versus cascade and the Earth as a filter.
PhysicsTry it
L-alanine and its mirror image as rotatable ball-and-stick models: superimposed, H and CH₃ remain swapped, while glycine with two H matches. A binding pocket with three sites holds L-alanine at three sites and D-alanine at only two. Plus R- and S-carvone (spearmint and caraway).
ChemistryTry it
Enantiomeric excess ee made visible: Kagan's non-linear effect with catalyst pairs (sluggish mixed pairs lift the product above the line) and Soai's autocatalysis, in which the product copies itself and a small excess grows to over 90 % within a few rounds. Plus 37 runs without initial excess: 18 × R, 19 × S.
ChemistryTry it
A forward-looking model household over 40 years: income rises, pensions fall, consumption stays flat because the household spreads everything it expects evenly. An announced pay rise changes nothing when it arrives; only a surprise shifts the plan, a permanent one strongly, a one-off one a little. With a share of hand-to-mouth households (Hall 1978, Hall and Mishkin 1982).
EconomicsTry it
The New Keynesian three-equation model as a simulator: 48 price tags show sticky prices, curves show inflation, output and interest rates over 20 quarters. Rate move, demand boost, energy price shock, crisis at the zero bound and an announced rate rise; Taylor rule with a fan of possible paths when the response is too weak, and forward guidance.
EconomicsTry itCollections
How sound is made and shaped: synthesizers and samplers, envelopes and overtones, waveforms and timbre, voice and orchestra, room acoustics and sound scenography — all audible in your browser.
14 appsOpen collection
Staging space, sight, light, sound and paths: visitor flows, showcase lighting, room acoustics, sound islands, projection mapping and the pavilions of world expos to try out.
15 appsOpen collection
Mathematical questions open for decades, for which an AI model proposed solutions in 2026, as interactive apps: understand the problem, experience the result.
32 appsOpen collection
From neurons and gradients to transformers, RLHF and agents: machine learning you can touch.
39 appsOpen collection
DNA, replication, transcription, translation and cell division as explorable 3D models.
16 appsOpen collection
Perspective, ornament, structure and space: how art and architecture work with mathematics.
14 appsOpen collection
Hyperloop, autonomous vehicles, warehouses and conveyors: logistics as interactive simulation.
17 appsOpen collection
Heart, eye, voice, skeleton and nerves: the human body in 3D, layer by layer.
8 appsOpen collection
Monty Hall, Simpson, Berkson and base rates: where intuition fails us with numbers.
14 appsOpen collection
Planets, stars, black holes and space probes: the cosmos to explore.
8 appsOpen collection
Riemann, P vs NP, Poincaré and other great questions of mathematics, made tangible.
16 appsOpen collection
Counting, arithmetic and shapes: maths for beginners, playful and clear.
6 appsOpen collectionWant to use these apps in your courses? Let’s find out what works for you.
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