Knots are indispensable tools for such human activities as sailing, fishing and rock climbing, (not to mention, tying shoes). But tying a knot in a lacelike strand of DNA, measuring just billionths of a meter in length, requires ...
Bio & Medicine
Nov 3, 2018
0
280
A new archaeological site discovered by an international and local team of scientists working in Ethiopia shows that the origins of stone tool production are older than 2.58 million years ago. Previously, the oldest evidence ...
Archaeology
Jun 3, 2019
3
1294
DNA may be the blueprint of life, but it's also a molecule made from just a few simple chemical building blocks. Among its properties is the ability to conduct an electrical charge, making one of the hottest areas in engineering ...
Biotechnology
Jun 20, 2016
0
1701
The force is strong not only in Star Wars lore but also as a fundamental property in physics. For example, scientists can put two uncharged metal plates close together in a vacuum, and "voila!" —-they will attract each ...
Condensed Matter
Mar 4, 2019
1
2140
In 2013, an ASU research team found the oldest known evidence of our own genus, Homo, at Ledi-Geraru in the lower Awash Valley of Ethiopia. A jawbone with teeth was dated to 2.8 million years ago, about 400,000 years earlier ...
Archaeology
May 15, 2017
0
898
Steel rusts by water and air on the Earth's surface. But what about deep inside the Earth's interior?
Earth Sciences
Aug 31, 2022
0
631
A team of researchers, led by astrophysicist Sumner Starrfield of Arizona State University, has combined theory with both observations and laboratory studies and determined that a class of stellar explosions, called classical ...
Astronomy
Jun 1, 2020
1
1260
Water, always important, always controversial, always fascinating, remains surprising. For a substance that is ubiquitous on Earth, three quarters of our planet is covered with it, researchers can still be surprised by some ...
Condensed Matter
Mar 8, 2018
8
868
Why do animals that live in caves become blind? This question has long intrigued scientists and been the subject of hot debate.
Evolution
Apr 18, 2017
2
588
For the first time, researchers have built a nanolaser that uses only a single molecular layer, placed on a thin silicon beam, which operates at room temperature. The new device, developed by a team of researchers from Arizona ...
Nanophysics
Jul 29, 2017
0
896
