The oldest scale plans of human made megastructures are reported in the open access journal PLOS ONE on May 17, 2023. The engravings, dated to between 7,000 and 8,000 years old, depict nearby desert kites, vast structures ...
Archaeology
May 17, 2023
0
252
(PhysOrg.com) -- A physicist has proposed using a 1.1 km (3,600 ft) cannon to deliver cargo into orbit, and says the cost would be around $250 per pound, a massive saving on the $5,000 per pound ($11,000 per kg) it currently ...
(PhysOrg.com) -- Spiderman would definitely have an easier time of things with this spider silk - for example, if he had to stop a getaway car moving off at 100 kilometres per hour. A five-millimetre-thick thread would do ...
Condensed Matter
Apr 24, 2009
2
0
The Dark Energy Survey took an entire decade to produce a value for the cosmological constant—and it's smaller than you might think! There were other stories as well, including one about primeval black holes, and because ...
One of modern climate science's pioneers is warning that the world isn't just steadily warming but is dangerously accelerating, according to a study that some other scientists call a bit overheated.
Environment
Nov 3, 2023
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114
While a visit to the great outdoors is a common prescription for reducing screen use, a pioneering new study finds that time outdoors doesn't always reduce smartphone screentime.
Social Sciences
May 15, 2023
1
70
An international study shows that soil in urban green spaces and natural areas share similar levels of multiple contaminants such as metals, pesticides, microplastics and antibiotic resistance genes around the world. Soil ...
Environment
Apr 5, 2023
0
59
Urban green areas, including parks and gardens, are a fundamental part of our cities and are, on many occasions, the only contact that humans have with nature.
Earth Sciences
Mar 28, 2023
0
32
A team of researchers at the University of Exeter has found that the slow conversion of outdoor lighting to LEDs across much of Europe has led to the development of a new kind of light pollution. In their paper published ...
As climate change shifts precipitation patterns, irrigation can be a powerful tool for increasing the world's food supply—feeding more than a billion additional people without converting natural spaces into farmland, according ...
Environment
Jun 13, 2022
1
206
