Summary
Overview
In this Field Notes episode, Michael Stevens and Hannah Fry explore listener questions ranging from historical technological heists to the surprising mathematics of construction workers' eye colors. The discussion spans from Byzantine silk smuggling to industrial espionage that shaped American slavery, before diving into quirky calculations comparing cloud data to raindrops and analyzing whether blue-eyed construction workers represent a statistical anomaly. Michael also showcases creative periodic table alternatives and unusual items from the latest Curiosity Box, including a periodic snail pin and a recipe shirt for processing uranium ore.
Historical Technological Heists: Silk and Spinning Machines
The hosts examine pivotal moments of technological theft throughout history, starting with Byzantine monks smuggling silkworm eggs from China in hollowed bamboo canes. This segues into an even more consequential heist: Samuel Slater's 1789 industrial espionage, where he memorized British textile machinery designs and recreated them in America. This theft inadvertently extended American slavery by creating insatiable demand for raw cotton, fundamentally altering the economics of human suffering in the American South for decades.
- Byzantine Emperor Justinian broke China's silk monopoly by having monks smuggle silkworm eggs in hollowed bamboo walking sticks
- The monks took two years to cross thousands of miles with the eggs, which could have failed if they hatched or froze
- Samuel Slater memorized every dimension of British Arkwright spinning frames and disguised himself as a farm laborer to leave England in 1789
- Slater's industrial espionage birthed the American factory system and ended Britain's textile monopoly
- The new American factories created bottomless demand for raw cotton, extending slavery in the South for many more decades
" It changed the maths of human suffering, essentially, and ended up feeding this demand for slavery in the South for, you know, many, many, many, many, many more decades to come. "
" Maybe he was a rat, but maybe I think also he was probably an inevitable rat. "
Cloud Data vs. Raindrops: A Quantitative Comparison
Michael tackles a delightful question comparing digital data in the cloud to actual water droplets in atmospheric clouds. Through detailed calculations, he reveals that Earth's clouds contain approximately 1,000 cubic kilometers of water in the form of 238 septillion tiny droplets, while the digital cloud stores around 240 zettabytes of data. Despite data centers' massive scale, nature's clouds dwarf our digital storage by orders of magnitude, with water molecules vastly outnumbering bits of information.
- More than half of people in 2013 believed data in the cloud was literally stored in clouds in the sky
- A Facebook data center in 2013 had humidity problems that caused an actual cloud to form inside, eventually producing rain
- Earth's clouds contain approximately 1,000 cubic kilometers of water, which is only 0.02% of atmospheric water
- At any moment, 5.4 quadrillion raindrops are falling to Earth (238 quintillion drops total)
- The digital cloud stores 240 zettabytes (190 sextillion bits), but atmospheric clouds contain 238 septillion droplets—nature wins by orders of magnitude
" There's more wetness in the atmosphere than there are ideas in the cloud. "
" And by the way, the cloud is like really cluttered with crud. Some might even say crap from the Internet of Things. It's just like my oven is connected to the Internet and it's responsible for some of this stuff that's in the cloud. "
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