Science
1,095 interactive pages · most loved first · page 17 of 46· Tonble one of these
GridMaths
Visual math lessons with animations such as sine waves drawn from circles, plus videos and little tools for learning mat…
Gridwatch
A live dashboard of Ontario's electricity grid, showing power generation by source so you can see where your power comes…
Gunswap Juggling
A 3D juggling simulator that animates any siteswap pattern you type in, with adjustable props, beat timing and hand move…
Harmony of the Spheres
A generative browser toy in which planets orbit a sun and sound musical notes as they move, turning an old idea about th…
Harmony of the Spheres
A 3D gravity and space simulator where you explore scenarios from our solar system and beyond, adding bodies and watchin…
Has a Nuke Gone Off?
A live, always-on answer to one question, powered by two home-built gamma and optical detectors in Wiltshire, plus build…
Hearing Test
A quick online hearing test with no sign-up that plays tones across the frequency range so you can find the highest pitc…
Hearth
Free no-signup calculators for everyday pet and sleep questions, such as dog chocolate toxicity, dog age, and caffeine c…
Heat Pumps, Hooray!
A cheerful illustrated explainer on why heat pumps beat gas furnaces, paired with a free calculator that estimates the c…
Hedonometer
An instrument measuring the collective mood of large populations from the words they post online, with happiness time se…
Height vs Wealth
An interactive visualization imagining humans as tall as they are rich, where height follows the wealth distribution and…
Helios
An address-level estimator of what plug-in solar panels could generate at any home in Great Britain, built to help answe…
Helioviewer
An open-source viewer for exploring the Sun in near real time, layering imagery from solar observatories to watch flares…
Here Is Today
A minimalist interactive page about time, built to make you stop and reflect on where today sits within the bigger pictu…
Here Is Today
An interactive that starts with today and zooms out step by step through the year, the century and the age of Earth to s…
HeyWhatsThat
Computes what you can see from any point on Earth, drawing a panorama and a visibility map of the mountain summits in vi…
Higher Math Proficiency Test
A free, interactive 20-question quiz that evaluates the range of skills needed to tackle higher mathematics, handy for c…
Hiroshima Archive
A digital 3D globe archive of the Hiroshima atomic bombing, mapping survivor testimonies and photographs onto the city w…
HistologyGuide
A free virtual microscope letting anyone pan and zoom across real stained tissue slides to learn how organs look under t…
Historical Tech Tree
An interactive visualization of technological history laid out as a tech tree, showing how inventions from ancient tools…
Historical Temperature
A data tool for looking up temperature changes over past decades in cities around the world, with trend charts and clima…
History of Mathematics Project
A virtual exhibit for the National Museum of Mathematics that walks through counting, geometry and number systems across…
History of Now
An Antikythera project that plots history on a 3D logarithmic timeline, letting you tilt the view and stretch the time s…
Homicides, Suicides, and Accidental Deaths in America
An interactive Venn diagram exploring how the prevalence of guns and mental illness relate to homicides, suicides and ac…
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