Explore interactive ideas in space, science, math, and more. Try a demo, read an interactive article, watch a short video, and follow what makes you curious.
New Originals
Change one thing and see why.
The three newest models, each with a short film. Watch the question, then play with the answer.
Paul Falstad
Creates educational browser simulations of waves, circuits, fields and mathematics.
3 works in this collection
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ScienceInteractive demoRipple Tank
Change sources and walls in a two-dimensional ripple tank to explore interference, diffraction and refraction.
MathInteractive demoFourier Series
EngineeringInteractive demoCircuit Simulator
Works in this collection
Curated works, with credit and links to the originals. This is not a lifetime total.
Showing 3 works in this collection.
ScienceInteractive demoRipple Tank
Change sources and walls in a two-dimensional ripple tank to explore interference, diffraction and refraction.
Sources and dates
- Credit
- Paul Falstad
- Work page
- Original work ↗
- Listed source
- Catalog source ↗
- Added to collection
- Released
- Date · not verified
- Phones
- Phone usability has not been checked.
MathInteractive demoFourier Series
Choose or draw a periodic waveform and compare it with its harmonic approximation.
Sources and dates
- Credit
- Paul Falstad
- Work page
- Original work ↗
- Listed source
- Catalog source ↗
- Added to collection
- Released
- Date · not verified
- Phones
- Phone usability has not been checked.
EngineeringInteractive demoCircuit Simulator
Switch and edit circuit components while animated colors and dots show voltage and current. JavaScript port by Iain Sharp.
Sources and dates
- Credit
- Paul Falstad
- Work page
- Original work ↗
- Listed source
- Catalog source ↗
- Added to collection
- Released
- Date · not verified
- Phones
- Phone usability has not been checked.
History
Source-backed history from the creator’s own pages and posts: when each work was announced, published or updated. Collection additions are kept separate, because they record our curation, not the creator’s release date.
Announced is the date of the creator’s own post about a work. Published and updated come from the creator’s own page. Each entry links its source.
No source-dated history yet.
We list a date only when the creator’s own page or post gives one.
About Paul Falstad
Paul Falstad’s educational applet collection visualizes concepts in mathematics, physics and engineering. Most of its original Java applets have JavaScript successors.
Individual tools retain collaborator credits; the circuit simulator’s JavaScript port is credited to Iain Sharp.
About this collection
3 works have been curated here. This count describes this collection, not the creator’s lifetime output.
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