Concrete innovation sequesters CO2:
Engineers developed a method to store CO2 in concrete using carbonated water, achieving 45% sequestration efficiency and enhancing strength.
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What would Brian Greene do if he could travel through time, and which future technology is he most excited about?
Continue reading “Brian Greene: The Most Important Question in Science” »
A new prototype chip from IBM Research could potentially bring energy-efficient AI to the edge.
China has released video footage of its rifle-toting robot dogs, and itâs about as scary as you were probably imagining.
Last week, Agence France-Presse reported that China had flaunted the gun-carrying robodogs in a 15-day joint military exercise with Cambodia dubbed the âGolden Dragon.â
Continue reading “Video Shows Chinaâs Rifle-Equipped Robot Dog Opening Fire on Targets” »
For decades, inflation has been the dominant cosmological scenario, but recently the theory has been subject to competition and critique. Two renowned pioneers of inflation â Alan Guth and Andrei Linde â join Brian Greene to make their strongest case for the inflationary theory.
This program is part of the Big Ideas series, supported by the John Templeton Foundation.
Continue reading “Epic Expansion: The Case for Inflationary Cosmology” »
Second Sightâs Orion system bypasses the eyes to bring artificial vision directly to the brain. Working prototypes are being tested right now in six blind individuals.
#WhatTheFuture #ArtificialVision #MedicalTech.
Continue reading “This machine creates artificial vision for the blind” »
Emergence, a fascinating and complex concept, illuminates how intricate patterns and behaviors can spring from simple interactions. Itâs akin to marveling at a symphony, where each individual note, simple in itself, contributes to a rich, complex musical experience far surpassing the sum of its parts. Although definitions of emergence vary across disciplines, they converge on a common theme: small quantitative changes in a systemâs parameters can lead to significant qualitative transformations in its behavior. These qualitative shifts represent different âregimesâ where the fundamental ârules of the gameâ-the underlying principles or equations governing the behavior-change dramatically.
To make this abstract concept more tangible, letâs explore relatable examples from various fields:
1. Physics: Phase Transitions: Emergence is vividly illustrated through phase transitions, like water turning into ice. Here, minor temperature changes (quantitative parameter) lead to a drastic change from liquid to solid (qualitative behavior). Each molecule behaves simply, but collectively, they transition into a distinctly different state with their properties.
A team of researchers led by the University of California San Diego has developed a soft, stretchy electronic device capable of simulating the feeling of pressure or vibration when worn on the skin. This device, reported in a paper published in Science Robotics (âConductive block copolymer elastomers and psychophysical thresholding for accurate haptic effectsâ), represents a step towards creating haptic technologies that can reproduce a more varied and realistic range of touch sensations.
The device consists of a soft, stretchable electrode attached to a silicone patch. It can be worn like a sticker on either the fingertip or forearm. The electrode, in direct contact with the skin, is connected to an external power source via wires. By sending a mild electrical current through the skin, the device can produce sensations of either pressure or vibration depending on the signalâs frequency.
Soft, stretchable electrode recreates sensations of vibration or pressure on the skin through electrical stimulation. (Image: Liezel Labios, UC San Diego Jacobs School of Engineering)
PDF | The causal efficacy of a material system is usually thought to be produced by the law-like actions and interactions of its constituents. Here, a⊠| Find, read and cite all the research you need on ResearchGate.
JACKSONVILLE, Fla. (June 17, 2024) â Redwire Corporation (NYSE: RDW), a leader in space infrastructure for the next generation space economy, announced today that it has been awarded a contract from the Defense Advanced Research Projects Agency (DARPA) to be the prime mission integrator for the development of a revolutionary air-breathing satellite that will demonstrate the use of novel electric propulsion systems in very low-Earth orbit (VLEO) using Redwireâs SabreSat VLEO platform. The program leverages Redwireâs worldwide leadership in developing and providing VLEO capabilities.
The strategic significance of VLEO is growing â especially for national security missions. While low-Earth (LEO) and geosynchronous (GEO) orbits are becoming increasingly congested and contested, spacecraft in VLEO operate in a relatively unimpaired environment. Bridging the gap between air and space, VLEO spacecraft fly above airborne anti-access areas while operating significantly closer to the area of responsibility on the ground than existing satellites. Additionally, unlike LEO and GEO, debris in VLEO deorbits in hours or days rather than in decades or more.
âWe are proud to be leveraging our SabreSat satellite design to support critical VLEO technology advancements for DARPAâs game-changing Otter program,â said Spence Wise, Redwire Senior Vice President, Missions and Platforms. âAs VLEO emerges as a critical domain for national security missions, Redwire is continuing to make investments to support technology innovation and strategic operations in this environment.â
