Scientists recently voted to designate Crawford Lake, a small body of water in southern Canada, as the reference site of the “Age of Man.”
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Posted inNews
Precisely Synced Clocks Pave the Way for New Science
Researchers working on Hawaiian mountain tops precisely synchronized two clocks with unprecedented efficiency, demonstrating the potential to create networks of such clocks for geodesy and more.
Posted inResearch Spotlights
COVID-19 Got You Feeling Under the Weather? Maybe Blame…the Weather
High humidity and low temperature altered COVID-19 spread in Brazil, but only slightly.
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El papel central de la agricultura en el calendario de horizonte azteca
Los calendarios de horizonte fueron clave para medir el tiempo para las culturas pre-hispánicas de la cuenca del Valle de México. Un nuevo estudio sugiere que los calendarios se usaron para gestionar los ciclos agrícolas.
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Agriculture at the Center of the Aztec Horizon Calendar
Horizon calendars were a key part of time measurement for pre-Hispanic cultures in the Basin of Mexico. A new study suggests that calendars were used to manage the agricultural cycle.
Posted inNews
A Day in the Life Used to Be 17 Hours
The Moon was a lot closer to Earth 2.46 billion years ago, and the shorter distance contributed to shorter days.
Posted inResearch Spotlights
Using Cell Phones as Space Weather Vanes
Tiny magnetometers have turned your phone into a compass, and new research shows they are sensitive to geomagnetic storms.
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Antarctic Ice Cores Might Be Older Than Dirt
Using cosmogenic nuclide dating, scientists determined a 10-meter core just below the surface to be over a million years old.
Posted inFeatures
Einstein Says: It’s 309.7-Meter O’Clock
Atomic clocks are now so accurate that Earth’s gravity can be seen to slow them down. Geodesy is preparing to use this relativistic effect to measure elevation.
Posted inEditors' Highlights
Accounting for the Fact that Snow Falls Slower than Rain
When calibrating satellite observations with ground-based ones, estimated precipitation rates are improved by considering that snow takes longer to fall compared to rain.