Subscribe free to our newsletters via your
. 24/7 Space News .




TECH SPACE
Autonomous convergence and divergence of self-powered soft liquid metals
by Staff Writers
Beijing, China (SPX) Apr 30, 2015


In this video, a thermostat water bath is employed to accelerate the motion. Several smaller droplet vehicles are deposited in the channel gently. The larger vehicle catches up with the smaller vehicle and swallows it seamlessly, finally. Image courtesy Science China Press.

The autonomous locomotion for a macroscopic machine remains an intriguing issue for the researchers to explore. Recently, Professor LIU Jing and his group from Tsinghua University demonstrated that as a versatile material, the liquid metal could be self-actuated when fueled with aluminum (Al) flake, and the motion thus enabled would persist for more than an hour at a quite high velocity.

Based on the previous study, the present work proposed to realize a much larger liquid metal machine, which could autonomously move and accelerate with the increase of temperature. More surprisingly, when dividing a large running liquid metal vehicle into several smaller ones, each of them still maintains its traveling state along the original track.

If several dispersive vehicles moved close to each other, they could coalesce seamlessly, and then still kept moving forward. This finding has been published on Science Bulletin, 2015.

Conventionally, it has been a challenge for a machine to achieve self-assembly without manual intervention. Generally, the self-assembly indicates a reversible process that pre-designed discrete modules could be assembled together.

When assembling the machine, each module is bound to the other. And if the discrete modules are needed to work individually, each of them should be equipped with separate power sources. These processes often results in a complex design and fabrication.

Inspired by the liquid metal enabled autonomous motion, which tactfully obviated the need of external energy, the present study demonstrated that through elevating the temperature, a much larger self-propelled machine could be achieved. More importantly, during the moving process, if dividing a large machine into several smaller separately running vehicles, each of them still resumes its traveling state along the original track and chases each other.

If the volumes of such dispersive vehicles were close to each other, and they were all squeezed in the channel, the vehicles would move synchronously with oscillation.

Otherwise, such self-motion would become desynchronized with interval between the inequable vehicles decreased gradually. If their volumes were significantly different, and the smaller vehicles were not squeezed in the channel, the faster vehicle would overtake the slower ones, until finally coalesced seamlessly. The assembled vehicle could deform itself along with change of its velocity.

This finding may shed light on future researches on smart material, fluid mechanics and soft matter to self-fueled machine. It would also offer opportunities for constructing self-reconfigurable soft robots.

See the article: ZHANG Jie, YAO Youyou, LIU Jing, Autonomous convergence and divergence of the self-powered soft liquid metal vehicles, Science Bulletin, 2015.

Thanks for being here;
We need your help. The SpaceDaily news network continues to grow but revenues have never been harder to maintain.

With the rise of Ad Blockers, and Facebook - our traditional revenue sources via quality network advertising continues to decline. And unlike so many other news sites, we don't have a paywall - with those annoying usernames and passwords.

Our news coverage takes time and effort to publish 365 days a year.

If you find our news sites informative and useful then please consider becoming a regular supporter or for now make a one off contribution.

SpaceDaily Contributor
$5 Billed Once


credit card or paypal
SpaceDaily Monthly Supporter
$5 Billed Monthly


paypal only

.


Related Links
Science China Press
Space Technology News - Applications and Research






Comment on this article via your Facebook, Yahoo, AOL, Hotmail login.

Share this article via these popular social media networks
del.icio.usdel.icio.us DiggDigg RedditReddit GoogleGoogle




Memory Foam Mattress Review
Newsletters :: SpaceDaily :: SpaceWar :: TerraDaily :: Energy Daily
XML Feeds :: Space News :: Earth News :: War News :: Solar Energy News





TECH SPACE
MIPT researchers grow cardiac tissue on 'spider silk' substrate
Moscow, Russia (SPX) Apr 12, 2015
Genetically engineered fibers of the protein spidroin, which is the construction material for spider webs, has proven to be a perfect substrate for cultivating heart tissue cells, MIPT researchers found. They discuss their findings in an article that has recently come out in the journal PLOS ONE. The cultivation of organs and tissues from a patient's cells is the bleeding edge of medical r ... read more


TECH SPACE
Russia Invites China to Join in Creating Lunar Station

Japan to land first unmanned spacecraft on moon in 2018

Dating the moon-forming impact event with meteorites

Japan to land probe on the moon in 2018

TECH SPACE
Rover on the Lookout for Dust Devils

UAE opens space center to oversee mission to Mars

Robotic Arm Gets Busy on Rock Outcrop

Mars might have liquid water

TECH SPACE
The Mysteries of Astronautics

NASA pushes back against proposal to slash climate budget

General Dynamics Integrates NASA's SGSS Infrastructure

India Role Model in Space Science Benefiting Common Man

TECH SPACE
Xinhua Insight: How China joins space club?

Chinese scientists mull power station in space

China completes second test on new carrier rocket's power system

China's Yutu rover reveals Moon's "complex" geological history

TECH SPACE
Progress Incident Not Threatening Orbital Station, Work of Crew

Russia loses control of unmanned spacecraft

Japanese astronaut to arrive in ISS in May

Liquid crystal bubbles experiment arrives at International Space Station

TECH SPACE
Ariane 5's first launch of 2015

Arianespace to launch HellaSat-4/SGS-1 for Arabsat and KACST

Sentinel-2A payload processing begins for Vega launch in June

45th Space Wing successfully launches first-ever Turkmenistan satellite

TECH SPACE
Robotically discovering Earth's nearest neighbors

Astronomers join forces to speed discovery of habitable worlds

Titan's Atmosphere Useful In Study Of Hazy Exoplanets

Tau Ceti Probably not the next Earth

TECH SPACE
Electron spin brings order to high entropy alloys

MIPT researchers grow cardiac tissue on 'spider silk' substrate

Seeing Stars Through The Cloud

Graphene brings 3-D holograms clearer and closer




The content herein, unless otherwise known to be public domain, are Copyright 1995-2014 - Space Media Network. All websites are published in Australia and are solely subject to Australian law and governed by Fair Use principals for news reporting and research purposes. AFP, UPI and IANS news wire stories are copyright Agence France-Presse, United Press International and Indo-Asia News Service. ESA news reports are copyright European Space Agency. All NASA sourced material is public domain. Additional copyrights may apply in whole or part to other bona fide parties. Advertising does not imply endorsement, agreement or approval of any opinions, statements or information provided by Space Media Network on any Web page published or hosted by Space Media Network. Privacy Statement All images and articles appearing on Space Media Network have been edited or digitally altered in some way. Any requests to remove copyright material will be acted upon in a timely and appropriate manner. Any attempt to extort money from Space Media Network will be ignored and reported to Australian Law Enforcement Agencies as a potential case of financial fraud involving the use of a telephonic carriage device or postal service.