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When the music changes, so does the dance: Controlling cooperative electronic states in kagome metals

Playing a different soundtrack is, physically speaking, only a minute change of the vibration spectrum, yet its impact on a dance floor is dramatic. People long for this tiny trigger, and as a salsa changes to a tango completely different collective patterns emerge.

Electrons in metals tend to show only one behavior at zero temperature, when all is quenched. One needs to frustrate the electronic interaction to break the dominance of one particular electronic order and allow multiple possible configurations. Recent results published in Nature Physics on kagome nets suggest that this triangular lattice is quite effective at doing so.

Named after the Japanese bamboo-basket woven pattern, a two-dimensional (2D) is constructed by a series of corner-sharing triangles. When each corner is occupied with with antiferromagnetic correlations, the nearest-neighbor interactions favor anti-aligned spins.

Nihilistic Aliens

Many doubt whether existence has any purpose or meaning, but could entirely civilizations become nihilistic. Would this spell their doom? And if not, what would they be like?
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Credits:
Nihilistic Aliens.
Episode 423b; December 3, 2023
Produced, Written \& Narrated by: Isaac Arthur.
Editor: Donagh Broderick.
Music Courtesy of: Steve Cardon.

Exposure to different kinds of music influences how the brain interprets rhythm

When listening to music, the human brain appears to be biased toward hearing and producing rhythms composed of simple integer ratios—for example, a series of four beats separated by equal time intervals (forming a 1:1:1 ratio).

However, the favored ratios can vary greatly between different societies, according to a large-scale study led by researchers at MIT and the Max Planck Institute for Empirical Aesthetics and carried out in 15 countries. The study included 39 groups of participants, many of whom came from societies whose traditional contains distinctive patterns of rhythm not found in Western music.

“Our study provides the clearest evidence yet for some degree of universality in music perception and cognition, in the sense that every single group of participants that was tested exhibits biases for integer ratios. It also provides a glimpse of the variation that can occur across cultures, which can be quite substantial,” says Nori Jacoby, the study’s lead author and a former MIT postdoc, who is now a research group leader at the Max Planck Institute for Empirical Aesthetics in Frankfurt, Germany.

Adobe’s new prototype generative AI tool is the “Photoshop” of music-making and editing

Project Music GenAI Control can generate audio using text prompts and provides editing features to customize the results within the same workflow.

Adobe’s latest generative AI experiment aims to help people create and customize music without any professional audio experience.


Audio is generated by text prompts, with editing built into the same workflow.

Photoroom, An App That Generates AI Images In One Second, Is Now Worth $500 Million

Photoroom announced Tuesday that it has raised $43 million in Series B funding at a valuation of $500 million. London-based early-stage venture firm Balderton Capital and Aglaé Ventures, an investment firm backed by LVMH CEO Bernard Arnault and his family, led the round, with participation from Y Combinator. The new round brings the Photoroom’s total funding to $64 million. With more than 150 million app downloads and a subscription-based business model, the Paris-based startup has crossed $50 million in annual recurring revenue, according to Rouif.

Photoroom has also garnered the attention of brands like Netflix, Lionsgate and Warner Bros, who have used the startup’s API to promote films and shows including Barbie and Black Mirror. In October 2023, Photoroom partnered with Universal Music Group-owned record label, Republic Records, to create a custom selfie generator of Taylor Swift’s album 1989 that millions of fans used to create an album cover with their own faces.

Photoroom first gained traction in 2020, the same year it was accepted into Y Combinator. During the pandemic, entrepreneurs rushed to produce online catalogs of their products and without access to photographers and professional photo studios, they turned to photo editing tools like Photoroom. Before generative AI tools became mainstream, the startup’s most popular tools were a background remover tool, a tool called “magic retouch,” which removed unwanted objects from a photo as well as a feature that could blur backgrounds in two seconds. When more advanced AI tools became available in 2023, the startup expanded its offerings to include fully AI-generated backgrounds, where users could create background visuals from scratch through text prompts — now Photoroom’s most commonly used feature.

Pythagoras was wrong: There are no universal musical harmonies, study finds

The tone and tuning of musical instruments has the power to manipulate our appreciation of harmony, new research shows. The findings challenge centuries of Western music theory and encourage greater experimentation with instruments from different cultures.

According to the Ancient Greek philosopher Pythagoras, ‘consonance’—a pleasant-sounding combination of notes—is produced by special relationships between simple numbers such as 3 and 4. More recently, scholars have tried to find psychological explanations, but these ‘integer ratios’ are still credited with making a chord sound beautiful, and deviation from them is thought to make music ‘dissonant,’ unpleasant sounding.

But researchers from the University of Cambridge, Princeton and the Max Planck Institute for Empirical Aesthetics, have now discovered two key ways in which Pythagoras was wrong.

AI video wars heat up as Pika adds Lip Sync powered by ElevenLabs

While Pika’s AI generated videos remain arguably lower quality and less “realistic” than the ones shown off by OpenAI’s Sora or even another rival AI video generation startup, Runway, the addition of the new Lip Sync feature puts it ahead of both in offering capabilities disruptive to traditional filmmaking software.

With Lip Sync, Pika is addressing one of the last remaining barriers to AI being useful for creating longer narrative films. Most other leading AI video generators don’t yet currently offer a similar feature natively.

Instead, in order to add spoken dialog and matching lip movements to characters inside the AI video, users have had to make do with third party tools and cumbersome additions in post production, which give the resulting video of a “low budget,” Monty Python-esque quality.

Vacuum Trains

And other low pressure rail & maglev systems offer the possibility of ultra-fast and ultra-cheap transport on and off of Earth. Watch my exclusive video Topopolis: The Eternal River: https://nebula.tv/videos/isaacarthur–… Nebula using my link for 40% off an annual subscription: https://go.nebula.tv/isaacarthur Visit our Website: http://www.isaacarthur.net Join Nebula: https://go.nebula.tv/isaacarthur Support us on Patreon: / isaacarthur Support us on Subscribestar: https://www.subscribestar.com/isaac-a… Facebook Group: / 1,583,992,725,237,264 Reddit: / isaacarthur Twitter: / isaac_a_arthur on Twitter and RT our future content. SFIA Discord Server: / discord Credits: Vacuum Trains Episode 435a; February 25, 2024 Written, Produced & Narrated by: Isaac Arthur Editors: Konstantin Sokerin Merv Johnson II Graphics: Allen DeMoura Apogii.uk Ian “LITE” Long Jarred Eagley Justin Dixon Katie Byrne Ken York Phil Swan Real Courte Sergio Botero Udo Schroeter Music Courtesy of: Epidemic Sound http://epidemicsound.com/creator