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2026-10-13 issue

Observed arrival · 2026-10-13

GeigerSim turns radiation detection into a gradeable lab

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Editorial interest 73/100 Selection signal · not a rating of the site

A Geiger-counter simulator for chemistry and physics classes, where students investigate hidden sources through experiments and instructors can score their work.

Landing page captured for the 2026-10-13 issue.
For
Chemistry and physics instructors teaching radiation detection
Worth noticing
The Basic Edition is described as feature-frozen for course use; newer features go to a separate Extended Edition.

Field notes

Students enter with a class code and roster ID, then work through assigned activities involving shielding, distance and timed counts. The Basic Teacher Console lists class and roster management, question sets, live view, records and exports; the site says student records are visible only to the instructor who created the class. The Basic Edition is described as feature-frozen, while the separate Extended Edition is where new features land.

Observed signals

Read the marks

Editorial observations of this landing page, not a rating.

○OpenPublic substance visible
⊠LoginAccess appeared gated
◎NicheUnusually specific use

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geigersim.com

Landing page observed 2026-10-13. The live site may have changed.