Earth & Space Science
Scale Explorer
Zoom smoothly across 42 powers of ten, from the observable universe down to a proton, seeing what lives at every scale. Equal steps across the screen mean equal ratios, so "ten times bigger" always looks the same distance. Compare any two things and find out how many of one fit across the other. Fully keyboard-drivable
Open Scale Explorer Opens the tool directly — no account, no signup, nothing to install.
Share this tool with a class or a colleague
This link opens Scale Explorer on its own. Paste it into an assignment, a sub plan, a slide, or a message and it opens on the tool the student needs.
https://alloflow-cdn.pages.dev/scale-explorer
Where this fits
Scale Explorer is one of the tools in the AlloFlow STEM Lab. It sits in the Earth & Space Science area of the STEM Lab. AlloFlow is free and open source, and it runs in a browser.
See every STEM tool with a shareable link, or search the tool finder by topic or classroom goal.
Is there a manual for this tool?
Not yet. AlloFlow has written manuals for a few tools so far — see the manuals and guides page — and this one is not among them. The tool itself carries its instructions on screen.