Uploaded April 2021 | Updated September 2026, 2 weeks ago
Grey? Blue? Purple? It can look different, depending on the context. Let's talk about color perception, color temperature, and the history of laundry.
Atmospheric opacity image from ESA/Hubble (F. Granato): eso.org/public/images/atm_opacity - image licensed under CC by 4.0 - creativecommons.org/licenses/by/4.0
The optical illusion is original, but based on the work of David Novick: twitter.com/novickprof/status/1139342022551191553
More on Illuminant D65: en.wikipedia.org/wiki/Illuminant_D65 - the references in this article go into the full technical detail
🟥 MORE FROM TOM: tomscott.com
(you can find contact details and social links there too)
❓ LATERAL, free weekly podcast: lateralcast.com youtube.com/lateralcast
👥 THE TECHNICAL DIFFICULTIES: youtube.com/techdif
Grey? Blue? Purple? It can look different, depending on the context. Let's talk about color perception, color temperature, and the history of laundry.
Atmospheric opacity image from ESA/Hubble (F. Granato): eso.org/public/images/atm_opacity - image licensed under CC by 4.0 - creativecommons.org/licenses/by/4.0
The optical illusion is original, but based on the work of David Novick: twitter.com/novickprof/status/1139342022551191553
More on Illuminant D65: en.wikipedia.org/wiki/Illuminant_D65 - the references in this article go into the full technical detail
🟥 MORE FROM TOM: tomscott.com
(you can find contact details and social links there too)
❓ LATERAL, free weekly podcast: lateralcast.com youtube.com/lateralcast
👥 THE TECHNICAL DIFFICULTIES: youtube.com/techdif
