Warsaw's water quality is monitored by eight clams with magnets attached to their shells. If contamination in the water causes the clams to close, the magnets trigger an alarm and shut off the city's water supply.
Thank you, little guardian molluscs.
🧪🌏🚰
Warsaw's water quality is monitored by eight clams with magnets attached to their shells. If contamination in the water causes the clams to close, the magnets trigger an alarm and shut off the city's water supply.
Thank you, little guardian molluscs.
🧪🌏🚰
What a wonderful way to live with mathematics.
A partial page from "Mathematica" by @davidbessis.bsky.social. Bill Thurston is the "he" here.
yalebooks.yale.edu/978030028328...
What a wonderful way to live with mathematics.
A partial page from "Mathematica" by @davidbessis.bsky.social. Bill Thurston is the "he" here.
yalebooks.yale.edu/978030028328...
Just how many types of antibiotics were discovered during that time?
So, I visualized it myself!
Just how many types of antibiotics were discovered during that time?
So, I visualized it myself!
These photos were taken with a pinhole camera I made from a beer can and left out from Summer to Winter Solstice - a 6 month exposure.
Bottom line = Winter Solstice. Top line = Summer Solstice.
The lines are the Sun moving across the sky w/some reflections. No line = clouds
These photos were taken with a pinhole camera I made from a beer can and left out from Summer to Winter Solstice - a 6 month exposure.
Bottom line = Winter Solstice. Top line = Summer Solstice.
The lines are the Sun moving across the sky w/some reflections. No line = clouds
www.nytimes.com/interactive/...