In a world-first, the extent of human development in oceans has been mapped. An area totalling approximately 30,000 square kilometres—the equivalent of 0.008 percent of the ocean—has been modified by human construction, ...
Earth Sciences
Aug 31, 2020
0
895
For decades scientists have been trying to solve Feynman's Sprinkler Problem: How does a sprinkler running in reverse—in which the water flows into the device rather than out of it—work? Through a series of experiments, ...
General Physics
Jan 29, 2024
3
59
Researchers have developed a water cloaking concept based on electromagnetic forces that could eliminate an object's wake, greatly reducing its drag while simultaneously helping it avoid detection.
Soft Matter
Dec 11, 2017
7
1362
Three billion years ago, amid one of the last wet periods on Mars, powerful debris flows carried mud and boulders down the side of a hulking mountain. The debris spread into a fan that was later eroded by wind into a towering ...
Planetary Sciences
Sep 18, 2023
0
297
Scientists have assumed that once a flow of a fluid has become turbulent, turbulence would persist. Researchers at the Institute of Science and Technology Austria (IST Austria), including Professor Björn Hof and co-first ...
Plasma Physics
Jan 8, 2018
4
501
One of the biggest drawbacks of electric vehicles – that they require hours and hours to charge – could be obliterated by new type of liquid battery that is roughly ten times more energy-dense than existing models, according ...
Energy & Green Tech
Sep 17, 2018
4
361
River flow is reduced in areas where forests have been planted and does not recover over time, a new study has shown. Rivers in some regions can completely disappear within a decade. This highlights the need to consider the ...
Environment
Jan 20, 2020
8
2592
Army-funded researchers discovered how to make materials capable of self-propulsion, allowing materials to move without motors or hands.
Polymers
Feb 1, 2021
1
325
A study published in Geophysical Research Letters confirms the existence of a large open lava tube in the Marius Hills region of the moon, which could be used to protect astronauts from hazardous conditions on the surface.
Space Exploration
Oct 18, 2017
8
663
When and how humans first settled in the Americas is a subject of considerable controversy. In the 20th century, archaeologists believed that humans reached the North American interior no earlier than around 14,000 years ...
Archaeology
Oct 8, 2023
1
229
