Shankar Sawant

Built with Claude · October 2026

Science explorers I built with Claude

A 3D globe that runs through 4.5 billion years of Earth’s history, and a human body you can peel from skin to organs. Both run in your browser on a laptop, tablet or phone. No sign-in, nothing to install.

Earth Through Time showing today's Earth over Africa and Europe, with a panel of planet conditions and a coloured geological timeline along the bottom. Open the globe ↗
Today. The panel tracks the planet’s conditions: O₂ 21 %, CO₂ 422 ppm, a 24-hour day, the Moon 384,400 km away.
The same view 252 million years ago: the supercontinent Pangaea, with eruptions glowing red over Siberia.
252 million years ago. Pangaea during the end-Permian die-off. The red glow over Siberia marks the eruptions that triggered it. CO₂ 2,000 ppm, average temperature 32 °C.

4,567 million years ago → 250 million years ahead

Earth Through Time

An interactive 3D globe of the whole history of the planet. Drag the timeline and watch continents drift, oceans open and ice sheets come and go.

Open Earth Through Time Needs WebGL2 · best on a laptop

The maps come from published plate reconstructions, so the coastlines at each age follow the science. Each moment is labelled as well constrained, modelled or speculative, so you can tell evidence from estimate.

Things to try

  • Press Tour for “The story of Earth” in 16 narrated stops, or “The human journey” in 12.
  • Open My place, pick Mumbai or any city, and follow it as its plate moves back through time.
  • Use Compare to put Pangaea and today side by side with a sliding divider.
  • Take a Deep Dive to the ground and walk, fly or swim among animals of that era.
170
world maps: every 5 million years back to 540 million years ago, wider steps beyond
59
events on the timeline, from the Moon-forming impact to today
101
species with fact cards, from the Burgess Shale to the blue whale
28
guided tour stops across the two narrated tours
  • Hadean4,567–4,031 Ma
  • Archean4,031–2,500 Ma
  • Proterozoic2,500–539 Ma
  • Phanerozoic539 Ma–today

Earth’s eons to scale, in the official chart colours the app uses. 95 of the app’s 101 species first appear in the last one.

Data: PALEOMAP maps and plate model (Scotese), Paleobiology Database, NASA Blue Marble and Black Marble, NOAA ETOPO1, International Chronostratigraphic Chart. Full credits are inside the app.

Built with: JavaScript modules, three.js and custom WebGL2 shaders for the atmosphere, ocean and terrain.

Anatomy Explorer with the skin and fat peeled away, showing the superficial muscles of a full human body, with depth and body-system controls on the left. Open the body ↗
Superficial muscles. Skin and fat are peeled away. The depth panel on the left turns each layer on or off.
The organs layer with the transverse colon selected and an information panel describing it.
Organs, one selected. Click any part to name it and read a short description, then isolate, hide or X-ray around it.

3,279 structures · 11 body systems

Anatomy Explorer

A 3D human body you can take apart. Peel it layer by layer, pull regions apart, and find any structure by its medical name or the everyday word for it.

Open Anatomy Explorer Touch, or mouse and keyboard

Every body region comes in two levels of detail, so a light version appears first and sharper meshes follow. The same controls work with touch on a phone or tablet.

Things to try

  • Press 1 to 6, or use the Depth panel, to peel from skin down to organs.
  • Turn on Decouple and pinch or scroll over a region to pull its layers apart.
  • Search with everyday words like “kneecap”, “six pack” or “funny bone”.
  • Switch the body type to female, child, elderly, athletic or higher body fat.
3,279
structures you can select and read about
11
body systems to show or hide, from skeletal to endocrine
6
depth layers, from skin to organs
6
body types, reshaped from one reference body
  • Skin255
  • Subcutaneous fat453
  • Superficial muscles270
  • Deep muscles576
  • Skeleton630
  • Organs1,095

Parts per depth layer, in the colours the app uses for each layer.

Models: Z-Anatomy (CC BY-SA 4.0), partly derived from BodyParts3D; body shapes measured from MakeHuman. The external genitalia are shown as a smooth surface for a general audience. For learning only, not for medical use.

Built with: React, React Three Fiber, three.js and Zustand, with meshes compressed by meshoptimizer.