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Tempera painting probed on the molecular scale

Researchers studied 15th century tempera recipes to understand the mixture's properties on a molecular scale. They found that the combination of egg-yolk and clay-based pigment creates a network that improves paint flow and covering properties.

SourceCNRS·JournalAngewandte Chemie·TypeExperimental study·DateNov 24, 2021

Historical analysis finds no precedent for the rate of coal and gas power decline needed to limit climate change to 1.5°C

Historical analysis found no precedent for the rate of coal and gas power decline required to limit climate change to 1.5°C. Rapid declines in fossil fuel use occurred in response to energy security threats, but such cases are less relevant to climate scenarios where continental-size regions are involved.

SourceCell Press·JournalOne Earth·TypeData/statistical analysis·DateOct 22, 2021

Rise of the war machines: Identifying key drivers of the evolution of military technology in pre-industrial societies

A new analysis spanning 10,000 years of history and ten major world regions found that world population size, major technological advances, and geographical connectivity are key drivers of military technology evolution. The study's methodology employed a resource called Seshat: Global History Databank to empirically test prior hypotheses.

SourcePLOS·JournalPLOS ONE·TypeComputational simulation/modeling·DateOct 20, 2021

Line and hook fishing techniques in Epipaleolithic Israel

A study at Jordan River Dureijat site in northern Israel uncovered a wide variety of hook shapes and sinkers, indicating humans had profound knowledge of fish behavior. The findings coincide with the beginning of agriculture in the region, highlighting the importance of aquatic resources for human subsistence.

SourcePLOS·JournalPLOS ONE·TypeObservational study·DateOct 6, 2021

May Day: How electricity brought power to strikes

Historical research from Lund University reveals that electrification strengthened professional groups' negotiating power, leading to more strikes over wage increases. The study analyzed 8,000 strikes between 1859 and 1938 and found that technological change was a rare trigger.

SourceLund University·JournalThe Journal of Economic History·DateApr 28, 2021

Barbequed clams on the menu for ancient Puerto Ricans

Scientists analyzed fossilized clam shells to reconstruct ancient cooking habits in Puerto Rico, finding that clams were cooked at temperatures between 100°C and 200°C. The results suggest that barbeque was a common method of cooking, unlike boiling, which may not have been widespread due to the lack of ceramic pottery technology.

SourceCardiff University·JournalScience Advances·DateNov 27, 2019

Switched on: a breakthrough for spintronics

A new tri-layer structure made of Cr2O3, YIG, and Pt enables significant control over the transmission of spin current at room temperature. This discovery is a major breakthrough in spintronics, paving the way for more efficient information processing devices.

SourceTohoku University·JournalNature Materials·DateMay 28, 2018

Cockroach ancient geographic and genomic history traced back to last supercontinent

Researchers have used genomic data to gain the most detailed information yet of cockroach evolution. The study suggests that extant families evolved during the breakup of Pangaea and prior to continental separation within Gondwana, with divergence times dating back up to 180 million years.