ScienceDaily: Top Technology News



Nanotube ‘rebar’ makes graphene twice as tough

Posted: 03 Aug 2018 01:02 PM PDT

Researchers have found that reinforcing graphene with embedded carbon nanotubes makes the 2D nanomaterial more than twice as tough as pristine graphene.


Improved passphrases could make online experiences both user-friendly and secure

Posted: 03 Aug 2018 11:31 AM PDT

Human factors researchers’ alternative passphrase systems showed significantly better user recall compared with existing systems.


The marriage of topology and magnetism in a Weyl system

Posted: 03 Aug 2018 10:47 AM PDT

Topology is a global aspect of materials, leading to fundamental new properties for compounds with large relativistic effects. The incorporation of heavy elements give rise to non-trivial topological phases of matter, such as topological insulators, Dirac and Weyl semimetals. The semimetals are characterized by band-touching points with linear dispersion, similar to massless relativistic particles in high energy physics.


NASA assigns crews to first test flights, missions on commercial spacecraft

Posted: 03 Aug 2018 10:35 AM PDT

NASA has introduced the first U.S. astronauts who will fly on American-made, commercial spacecraft to and from the International Space Station — an endeavor that will return astronaut launches to U.S. soil for the first time since the space shuttle’s retirement in 2011.


A periodic table of molecular knots

Posted: 03 Aug 2018 07:33 AM PDT

Using computational predictive models, the scientists identified a shortlist, a kind of ‘periodic table’, of the most designable knot types, i.e. those knots that could easily self-assemble under appropriate physical and chemical conditions. This study, and the increasingly predictive capability of molecular modelling techniques, can create novel possible perspectives for future advanced applications, like the construction of sophisticated molecular machines for loading and delivering a nanocargo.


VLA detects possible extrasolar planetary-mass magnetic powerhouse

Posted: 03 Aug 2018 07:33 AM PDT

Astronomers have detected a possible planetary-mass object with a surprisingly powerful magnetic field some 20 light-years from Earth. It can help scientists better understand magnetic processes on stars and planets.




Locusts help uncover the mysteries of smell

Posted: 03 Aug 2018 07:33 AM PDT

By looking into the brains of locusts, researchers have determined how one smell can affect another, and how a locust can recognize a smell even though its brain activity looks different depending on the context.


The subtle mechanics of an avalanche — as seen in 3D

Posted: 03 Aug 2018 07:33 AM PDT

Drawing on the fact that the snow in an avalanche can behave like both a solid and a fluid, a researcher has managed to simulate a snow slab avalanche with unrivaled precision.


Rethinking ketchup packets: New approach to slippery packaging aims to cut food waste

Posted: 03 Aug 2018 07:33 AM PDT

New research aims to cut down on waste — and consumer frustration — with a novel approach to creating super slippery industrial packaging. The study establishes a method for wicking chemically compatible vegetable oils into the surfaces of common extruded plastics, like those used for ketchup packets and other condiments.


Lead or follow: What sets leaders apart?

Posted: 03 Aug 2018 07:32 AM PDT

Leaders are more willing to take responsibility for making decisions that affect the welfare of others. In a new study, researchers identified the cognitive and neurobiological processes that influence whether someone is more likely to take on leadership or to delegate decision-making.


High-resolution imaging of nanoparticle surface structures is now possible

Posted: 03 Aug 2018 07:32 AM PDT

Using scanning tunnelling microscopy (STM), extremely high resolution imaging of the molecule-covered surface structures of silver nanoparticles is possible, even down to the recognition of individual parts of the molecules protecting the surface.


Old mining techniques make a new way to recycle lithium batteries

Posted: 02 Aug 2018 04:19 PM PDT

Using 100-year-old minerals processing methods, chemical engineering students have found a solution to a looming 21st-century problem: how to economically recycle lithium ion batteries.


New tool helps users decide which countries their Internet traffic transits

Posted: 02 Aug 2018 10:07 AM PDT

The Internet gives people worldwide access to applications and services, but in many cases, Internet traffic passes through a few dominant countries, according to new research.

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