On the eve of the rise of the Maya civilization, people living in what’s now Belize turned a whole wetland into a giant network of fish traps big enough to feed thousands of people.

We already know that the Maya turned swamps into breadbaskets by draining and building raised blocks of land for maize fields. However, a recent survey of a wetland in what’s now Belize suggests that the rise of the Maya civilization was fueled not just by maize but by tons of fish every year. University of New Hampshire archaeologist Eleanor Harrison-Buck and her colleagues recently mapped a network of channels and ponds for trapping fish, built just before the Maya civilization rose to prominence.

Fish in a barrel

Harrison-Buck and her fellow archeologists used drones and Google Earth data to map 108 kilometers of ancient channels that zigzag across 42 square kilometers of wetland in Belize’s Crooked Tree Wildlife Sanctuary. The result is a network of channels and ponds that looks remarkably like the fish traps found farther south in Bolivia, built several centuries after the ones at Crooked Tree. Radiocarbon dating of material buried in the bottom of one channel suggests that the network has been around for at least 4,000 years.

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On the eve of the rise of the Maya civilization, people living in what’s now Belize turned a whole wetland into a giant network of fish traps big enough to feed thousands of people.

We already know that the Maya turned swamps into breadbaskets by draining and building raised blocks of land for maize fields. However, a recent survey of a wetland in what’s now Belize suggests that the rise of the Maya civilization was fueled not just by maize but by tons of fish every year. University of New Hampshire archaeologist Eleanor Harrison-Buck and her colleagues recently mapped a network of channels and ponds for trapping fish, built just before the Maya civilization rose to prominence.

Fish in a barrel

Harrison-Buck and her fellow archeologists used drones and Google Earth data to map 108 kilometers of ancient channels that zigzag across 42 square kilometers of wetland in Belize’s Crooked Tree Wildlife Sanctuary. The result is a network of channels and ponds that looks remarkably like the fish traps found farther south in Bolivia, built several centuries after the ones at Crooked Tree. Radiocarbon dating of material buried in the bottom of one channel suggests that the network has been around for at least 4,000 years.

Read full article

Comments

On the eve of the rise of the Maya civilization, people living in what’s now Belize turned a whole wetland into a giant network of fish traps big enough to feed thousands of people.

We already know that the Maya turned swamps into breadbaskets by draining and building raised blocks of land for maize fields. However, a recent survey of a wetland in what’s now Belize suggests that the rise of the Maya civilization was fueled not just by maize but by tons of fish every year. University of New Hampshire archaeologist Eleanor Harrison-Buck and her colleagues recently mapped a network of channels and ponds for trapping fish, built just before the Maya civilization rose to prominence.

Fish in a barrel

Harrison-Buck and her fellow archeologists used drones and Google Earth data to map 108 kilometers of ancient channels that zigzag across 42 square kilometers of wetland in Belize’s Crooked Tree Wildlife Sanctuary. The result is a network of channels and ponds that looks remarkably like the fish traps found farther south in Bolivia, built several centuries after the ones at Crooked Tree. Radiocarbon dating of material buried in the bottom of one channel suggests that the network has been around for at least 4,000 years.

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Physicists including Robert H. Dickle and Fred Hoyle have argued that we are living in a universe that is perfectly fine-tuned for life. Following the anthropic principle, they claimed that the only reason fundamental physical constants have the values we measure is because we wouldn’t exist if those values were any different. There would simply have been no one to measure them.

But now a team of British and Swiss astrophysicists have put that idea to test. “The short answer is no, we are not in the most likely of the universes,” said Daniele Sorini, an astrophysicist at Durham University. “And we are not in the most life-friendly universe, either.” Sorini led a study aimed at establishing how different amounts of the dark energy present in a universe would affect its ability to produce stars. Stars, he assumed, are a necessary condition for intelligent life to appear.

But worry not. While our Universe may not be the best for life, the team says it’s still pretty OK-ish.

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Physicists including Robert H. Dickle and Fred Hoyle have argued that we are living in a universe that is perfectly fine-tuned for life. Following the anthropic principle, they claimed that the only reason fundamental physical constants have the values we measure is because we wouldn’t exist if those values were any different. There would simply have been no one to measure them.

But now a team of British and Swiss astrophysicists have put that idea to test. “The short answer is no, we are not in the most likely of the universes,” said Daniele Sorini, an astrophysicist at Durham University. “And we are not in the most life-friendly universe, either.” Sorini led a study aimed at establishing how different amounts of the dark energy present in a universe would affect its ability to produce stars. Stars, he assumed, are a necessary condition for intelligent life to appear.

But worry not. While our Universe may not be the best for life, the team says it’s still pretty OK-ish.

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Physicists including Robert H. Dickle and Fred Hoyle have argued that we are living in a universe that is perfectly fine-tuned for life. Following the anthropic principle, they claimed that the only reason fundamental physical constants have the values we measure is because we wouldn’t exist if those values were any different. There would simply have been no one to measure them.

But now a team of British and Swiss astrophysicists have put that idea to test. “The short answer is no, we are not in the most likely of the universes,” said Daniele Sorini, an astrophysicist at Durham University. “And we are not in the most life-friendly universe, either.” Sorini led a study aimed at establishing how different amounts of the dark energy present in a universe would affect its ability to produce stars. Stars, he assumed, are a necessary condition for intelligent life to appear.

But worry not. While our Universe may not be the best for life, the team says it’s still pretty OK-ish.

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Over five months after publicly scrapping the first version of the Windows Recall feature for its first wave of Copilot+ PCs, Microsoft announced today that a newly rearchitected version of Recall is finally ready for public consumption.

For now, the preview will be limited to a tiny subset of PCs: Qualcomm Snapdragon X Elite and Plus Copilot+ PCs enrolled in the Dev channel of the Windows Insider program. Intel and AMD Copilot+ PCs can’t access the Recall preview yet, and regular Windows 11 PCs won’t support the feature at all.

If you haven’t been following along, Recall is one of Microsoft’s many AI-driven Windows features exclusive to Copilot+ PCs, which come with a built-in neural processing unit (NPU) capable of running AI and machine learning workloads locally on your device rather than in the cloud. When enabled, Recall runs in the background constantly, taking screenshots of all your activity and saving both the screenshots and OCR’d text to a searchable database so that users can retrace their steps later.

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Over five months after publicly scrapping the first version of the Windows Recall feature for its first wave of Copilot+ PCs, Microsoft announced today that a newly rearchitected version of Recall is finally ready for public consumption.

For now, the preview will be limited to a tiny subset of PCs: Qualcomm Snapdragon X Elite and Plus Copilot+ PCs enrolled in the Dev channel of the Windows Insider program. Intel and AMD Copilot+ PCs can’t access the Recall preview yet, and regular Windows 11 PCs won’t support the feature at all.

If you haven’t been following along, Recall is one of Microsoft’s many AI-driven Windows features exclusive to Copilot+ PCs, which come with a built-in neural processing unit (NPU) capable of running AI and machine learning workloads locally on your device rather than in the cloud. When enabled, Recall runs in the background constantly, taking screenshots of all your activity and saving both the screenshots and OCR’d text to a searchable database so that users can retrace their steps later.

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Over five months after publicly scrapping the first version of the Windows Recall feature for its first wave of Copilot+ PCs, Microsoft announced today that a newly rearchitected version of Recall is finally ready for public consumption.

For now, the preview will be limited to a tiny subset of PCs: Qualcomm Snapdragon X Elite and Plus Copilot+ PCs enrolled in the Dev channel of the Windows Insider program. Intel and AMD Copilot+ PCs can’t access the Recall preview yet, and regular Windows 11 PCs won’t support the feature at all.

If you haven’t been following along, Recall is one of Microsoft’s many AI-driven Windows features exclusive to Copilot+ PCs, which come with a built-in neural processing unit (NPU) capable of running AI and machine learning workloads locally on your device rather than in the cloud. When enabled, Recall runs in the background constantly, taking screenshots of all your activity and saving both the screenshots and OCR’d text to a searchable database so that users can retrace their steps later.

Read full article

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