John Baez personal blog
Can a Human See a Single Photon? (1996)
The human eye is very sensitive; but can we see a single photon? The answer is yes: sensors in the retina can respond to a single photon. But neural filters only allow a signal to pass to the brain to trigger a conscious response when at least about five to nine arrive within less than 100 ms. If we could consciously…
- Points
- 195
- HN comments
- 235
- Submissions
- 3
- Cited by
- 8 commenters
On Hacker News
| Submitted | Title on HN | Points | Comments |
|---|---|---|---|
| Nov 12, 2017 | Can a Human See a Single Photon? (1996) by adenadel | 195 | 91 |
| Jan 20, 2023 | Can a Human See a Single Photon? (1996) by omarfarooq | 167 | 132 |
| Sep 9, 2008 | Can a Human See a Single Photon? by hhm | 51 | 12 |
Cited in comments
Linked from 8 Hacker News comments by 8 different people, from Feb 2009 to Feb 2024.
Most recent:
- TeMPOraL · Feb 14, 2024
- twelvechairs · Apr 8, 2017
- devindotcom · Jul 26, 2016
- TheLoneWolfling · Dec 3, 2014
- OzzyOsbourne · Dec 3, 2012
- d0mine · Jan 7, 2010
