7,059 research outputs found
Autonomous model protocell division driven by molecular replication
The coupling of compartmentalisation with molecular replication is thought to be crucial for the emergence of the first evolvable chemical systems. Minimal artificial replicators have been designed based on molecular recognition, inspired by the template copying of DNA, but none yet have been coupled to compartmentalisation. Here, we present an oil-in-water droplet system comprising an amphiphilic imine dissolved in chloroform that catalyses its own formation by bringing together a hydrophilic and a hydrophobic precursor, which leads to repeated droplet division. We demonstrate that the presence of the amphiphilic replicator, by lowering the interfacial tension between droplets of the reaction mixture and the aqueous phase, causes them to divide. Periodic sampling by a droplet-robot demonstrates that the extent of fission is increased as the reaction progresses, producing more compartments with increased self-replication. This bridges a divide, showing how replication at the molecular level can be used to drive macroscale droplet fission
An Open-Source Simulator for Cognitive Robotics Research: The Prototype of the iCub Humanoid Robot Simulator
This paper presents the prototype of a new computer simulator for the humanoid robot iCub. The iCub is a new open-source humanoid robot developed as a result of the “RobotCub” project, a collaborative European project aiming at developing a new open-source cognitive robotics platform. The iCub simulator has been developed as part of a joint effort with the European project “ITALK” on the integration and transfer of action and language knowledge in cognitive robots. This is available open-source to all researchers interested in cognitive robotics experiments with the iCub humanoid platform
Automating Automation: Lessons from R.U.R about the Future of Evolutionary Robotics
R.U.R: Rossum’s Universal Robots presents a narrative that discusses the age-old postulate for what separates humankind and automatons. That is, the dichotomy between us and them is that our mechanical servants
(robots) are made not born. Self-replication has been a long standing
open research problem and topic of discussion in artificial life, with a range of highly anticipated future macro-robotic to nano-robotic applications. More recently, self-replication has been the subject of some research attention in the relatively embryonic field of evolutionary robotics and the topic has even enjoyed some international media attention. One observation drawn from evolutionary robotics research as a whole, is that
much like the robots of R.U.R, current experimental evolutionary robotic systems are
inexorably tied to their system designers. Dissimilar to the biological counter-parts
that they aspire to, such robotic systems are not self-sufficient. Even though such
robots have some autonomy in specific environments, they are unable to autonomously
propagate and improve their body-brain design on an evolutionary time-scale
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