Viewing profile — labseven

This, and the ergonomics of a lighter pen, is the reason I prefer the capped Pilot Precise BeGreen pen, which accepts the same V5 cartridges. I'm surprised how relatively rare thes…

Sam Lavigne did a similar project in 2017, generating targeted video ads on twitter. https://lav.io/projects/the-infinite-campaign/

The two maps I use are purple air and AirNow.gov. https://www.purpleair.com/map https://www.airnow.gov/

From my understanding, the deep breathing doesn't particularly raise O2 (which is already 97-99%) but purges CO2, which then lets you hold your breath (empty lungs) for 2-3 minutes…