SAPIENS by Sara Ceraldi
Objects—pieces of paper, coins, lumps of precious metal—may serve as currency and represent specific monetary values, but what underpins the exchange of money is trust. We trust that our money will retain its value, that others will be willing to trade for it, and that it will still be in the bank when we come back for it. In recent years, cryptocurrency has emerged as a disruptive alternative to traditional money. Fundamentally, cryptocurrencies like bitcoin and ethereum function by replacing trust in banks and the government with trust in digital cryptography.
SAPIENS by Douglas Fox /
Suzana Herculano-Houzel spent most of 2003 perfecting a macabre recipe—a formula for brain soup. Sometimes she froze the jiggly tissue in liquid nitrogen, and then she liquefied it in a blender. Other times she soaked it in formaldehyde and then mashed it in detergent, yielding a smooth, pink slurry.
This article was originally published at The Conversation and has been republished under Creative Commons.
Our knowledge about the people who lived in Roman Britain has undergone a sea change over the past decade. New research has rubbished our perception of it as a region inhabited solely by white Europeans. Roman Britain was actually a highly multicultural society that included newcomers and locals with black African ancestry and dual heritage, as well as people from the Middle East.
You never know when or how new research will begin. Let alone how you’re going to do it. That’s why it’s always good to take notes…and photographs.
SAPIENS by Stephen E. Nash
I’ve spent a good chunk of my life hiking the U.S. Southwest, and I’ve kicked my share of sharp rocks and prickly cactuses as I’ve walked across hot sandy stretches of desert. My hiking boots usually provide adequate protection, but I’ve endured an abundance of cuts, burns, and punctures. So I’ve often wondered: What did people do to protect their feet 1,000 years ago? And that begs another question: Did ancient people need footwear, or were their feet so tough and weathered that they could go barefoot most of the time?
SAPIENS by Andrew Curry
Just below the South African village of Brenton-on-Sea, there’s a beach that looks like something out of a tourism brochure: a tiny, sheltered bay with 50 meters of sandy beach at low tide, backed by 100-meter sea cliffs rising into a blue sky. Right where sand and cliffs meet, there is a low-ceilinged cave carved out of the surrounding stone by pounding waves.
SAPIENS by Manuel Medrano and Gary Urton
This article was originally published at Aeon.
The Inca Empire (1400–1532) is one of few ancient civilizations that speaks to us in multiple dimensions. Instead of words or pictograms, the Incas used khipus—knotted string devices—to communicate extraordinarily complex mathematical and narrative information. But, after more than a century of study, we remain unable to fully crack the code of the khipus. The challenge rests not in a lack of artifacts—over 1,000 khipus are known to us today—but in their variety and complexity. We confront tens of thousands of knots tied by different people, for different purposes, and in different regions of the empire. Cracking the code amounts to finding a pattern in history’s knotted haystack.