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What would Brian Greene do if he could travel through time, and which future technology is he most excited about?

After our full interview, I had the privilege to sit down with Brian and ask him a few more questions. Enjoy this exclusive Q\&A with one of the most renowned physicists of our time!

And if you haven’t already, check out our full interview: ‱ Brian Greene: The Truth About String


Brian Greene is an American theoretical physicist and mathematician. He’s a professor at Columbia University and the director of Columbia’s Center for Theoretical Physics. He has gained a lot of popularity through his books that bring complex physical issues closer to general audiences: The Elegant Universe (1999), Icarus at the Edge of Time (2008), The Fabric of the Cosmos (2004), and The Hidden Reality (2011), a book he promoted in the TV show The Big Bang Theory!

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China has released video footage of its rifle-toting robot dogs, and it’s 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 “Golden Dragon.”

And if images of the literal killing machines weren’t troubling enough, a new video of the robots released yesterday by the state-owned broadcaster China Central Television shows the killing machine dutifully hopping and diving, leading teams in reconnaissance, and shooting its back-strapped machine gun at targets.

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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 — Alan Guth and Andrei Linde — 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.

Participants:
Alan Guth.
Andrei Linde.

Moderator:
Brian Greene.

00:00 — Introduction.
05:58 — Participant introductions.
08:23 — Problems with the Big Bang.
28:07 — Realizing the Inflationary Paradigm.
42:13 — Observational Support for the Inflationary Theory.
56:37 — Eternal Inflation and the Measure Problem.
01:17:09-The Future of Cosmology.

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Second Sight’s 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.

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Emergence, a fascinating and complex concept, illuminates how intricate patterns and behaviors can spring from simple interactions. It’s 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 system’s parameters can lead to significant qualitative transformations in its behavior. These qualitative shifts represent different “regimes” where the fundamental “rules of the game”-the underlying principles or equations governing the behavior-change dramatically.

To make this abstract concept more tangible, let’s 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.

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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 (“Conductive block copolymer elastomers and psychophysical thresholding for accurate haptic effects”), 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 signal’s 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)

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JACKSONVILLE, Fla. (June 17, 2024) – 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 Redwire’s SabreSat VLEO platform. The program leverages Redwire’s worldwide leadership in developing and providing VLEO capabilities.

The strategic significance of VLEO is growing – 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.

“We are proud to be leveraging our SabreSat satellite design to support critical VLEO technology advancements for DARPA’s game-changing Otter program,” said Spence Wise, Redwire Senior Vice President, Missions and Platforms. “As 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.”

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