Columns of workers penetrate the forest, furiously gathering as much food and supplies as they can. They are a massive army that living things know to avoid, and that few natural obstacles can waylay. So determined are these ...
Plants & Animals
Nov 23, 2015
6
9755
Hydrocarbons and petroleum are almost synonymous in environmental science. After all, oil reserves account for nearly all the hydrocarbons we encounter. But the few hydrocarbons that trace their origin to biological sources ...
Cell & Microbiology
Feb 2, 2021
9
1169
A solar-powered airplane on a mission to fly around the world landed in California, completing a risky, three-day flight across a great expanse of the Pacific Ocean.
Energy & Green Tech
Apr 24, 2016
2
6194
One of the hottest debates in archaeology is how and when humans first arrived in North America. Archaeologists have traditionally argued that people walked through an ice-free corridor that briefly opened between ice sheets ...
Archaeology
Dec 16, 2023
1
1232
Researchers from the Netherlands have created a new approach to envision how dinosaurs walked. By modeling a T. rex tail as a suspension bridge, the scientists formed a new idea of the animal's walking speed. Trix, the tyrannosaur ...
Paleontology & Fossils
Apr 20, 2021
2
964
(Phys.org) —It is generally agreed that the ancestors of modern Native Americans were Asian peoples who migrated to North America from Siberia and Beringia – a region proximate to the Bering Strait, Bering Sea and Chukchi ...
Long ago, one great ocean flowed between North and South America. When the narrow Isthmus of Panama joined the continents about 3 million years ago, it also separated the Atlantic from the Pacific Ocean. If this took place ...
Earth Sciences
Aug 17, 2016
0
672
Magnets formed from a single molecule are of particular interest in data storage, since the ability to store a bit on every molecule could vastly increase the storage capacity of computers. Researchers have now developed ...
Materials Science
Sep 14, 2021
0
4299
Hydrogen is a sustainable source of clean energy that avoids toxic emissions and can add value to multiple sectors in the economy including transportation, power generation, metals manufacturing, among others. Technologies ...
Nanophysics
Dec 21, 2020
1
6839
(Phys.org) —Worries that the security of integrated circuits used in critical systems by the military and industry can be compromised are all the more real with the release of a research paper titled "Stealthy Dopant-Level ...
A bridge is a structure built to span a valley, road, railroad track, river, body of water, or any other physical obstacle, for the purpose of providing passage over the obstacle. Designs of bridges will vary depending on the function of the bridge and the nature of the terrain where the bridge is to be constructed.
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