Observed arrival · 2026-11-05
Cosmos Notebook: a home physics lab
A free collection of home astrophysics and quantum physics experiments, with learning paths and a place to keep lab notes.
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- For
- Home learners exploring astrophysics and quantum physics
- Worth noticing
- The Jupiter-mass exercise calls for tracking its moons over several clear nights, then applying Kepler’s third law.
Field notes
The homepage lists 18 experiments, 10 books, and 7 tools, with guides organized around kit, method, and mathematics. Examples range from a cardboard-tube-and-CD spectroscope to tracking Jupiter’s moons with binoculars over several weeks; most experiments are described as costing under £15. The site says sessions can be recorded in a private lab notebook and write-ups shared with the community, though the latest-write-ups area currently shows a loading message.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
⊠LoginAccess appeared gated
✦PrettyNotable craft visible
●ProPolished or operationally mature
◎NicheUnusually specific use
◉HumanPersonal, local, civic, or handmade
One card from the complete issue