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A visualization of daily life around Angkor Wat in the late 12th century. Tom Chandler, Mike Yeates, Chandara Ung and Brent McKee, Monash University, 2021

A metropolis arose in medieval Cambodia – new research shows how many people lived in the Angkor Empire over time

Combining archaeological evidence, aerial scans and machine learning algorithms, researchers modeled how this medieval city grew over time.
A variety of clues can tip off archaeologists about a promising spot for excavation. Gabriel Wrobel

How do archaeologists know where to dig?

Archaeologists used to dig primarily at sites that were easy to find thanks to obvious visual clues. But technology – and listening to local people – plays a much bigger role now.
LiDAR helps an autonomous vehicle ‘visualize’ what’s around it. Yulong Can with data from Baidu Apollo

Autonomous vehicles can be fooled to ‘see’ nonexistent obstacles

Driverless vehicles rely heavily on sensors to navigate the world. They’re vulnerable to attack if bad actors trick them into ‘seeing’ things that aren’t there, potentially leading to deadly crashes.
20 years ago, who could predict how much more researchers would know today about the human past – let alone what they could learn from a thimble of dirt, a scrape of dental plaque, or satellites in space. Manuel Domínguez-Rodrigo

Archaeological discoveries are happening faster than ever before, helping refine the human story

20 years ago, who could predict how much more researchers would know today about the human past – let alone what they could learn from a thimble of dirt, a scrape of dental plaque, or satellites in space.
A woman cries inside her flooded house in Huarmay, a coastal region of Peru, which in 2017 saw its worst flooding in 20 years. Ernesto Arias/EPA

Three times more people at risk from yearly coastal flooding than previously thought – new research

Hundreds of millions more people will now be at risk from rising seas in the coming decades - with Asia and island nations most vulnerable. How we react to the climate crisis is now even more crucial.
The orientations of the stone walls that crisscross the Northeastern U.S. can tell a geomagnetic tale as well as a historical one. John Delano

Old stone walls record the changing location of magnetic north

Scientific inspiration struck a geologist after many walks through the woods in New York and New England. These ruins hold the secret of where the compass pointed north when they were built centuries ago.
A self-driving car heads into the woods. Matthew Doude

Driving autonomous cars off the beaten path

One-third of roads in the U.S. are unpaved; plenty more have faded or obscured road markings. Today’s self-driving vehicles can’t go on them, and will need new algorithms to handle those conditions.
LiDAR, was used to “redraw” the remains of the city, along the lower western slopes of the Suikerbosrand hills near Johannesburg. Karim Sadr

How we recreated a lost African city with laser technology

Technology which located Mayan cities has been used to rediscover a southern African city from the 15th century.

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