David Chapman personal blog
Seriously bright light vs. winter blahs
Most SAD light therapy lamps are not bright enough. How to get brighter light than any you can buy!
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Life, Learning & WritingScience & Space2022
Cited in comments
Linked from 12 Hacker News comments by 12 different people, from Jul 2022 to Feb 2026.
Most recent:
- riotnrrd · Feb 3, 2026
- photon_garden · Sep 19, 2025
- NotGMan · Mar 27, 2025
- astrange · May 25, 2024
- sealeck · Dec 6, 2023
- jackschultz · Dec 4, 2023
