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Electrical ‘knob’ can switch light on, off and tune intensity at the nanoscale

Physicists from Emory University have led work to develop a microscopic, nonlinear light source that can be switched on, off or tuned to a particular intensity by an electrical “knob.” The paper is published in the journal Optica, and could aid in the design of smaller, more flexible technologies for communications, sensing and quantum computing.

The new method focuses on a type of nonlinear optics known as second harmonic generation (SHG), where two photons of the same frequency interact with a material and combine into a single photon with twice the frequency.

“Nobody had previously shown that you can tune second harmonic generation with an electric knob in such a small device,” says Hayk Harutyunyan, senior author of the paper and Emory professor of physics.

Disco lasers helps snow groomers project tracks, warnings and speed cues

When it comes to snow groomers, excavators or crane vehicles, how can their operation be optimized even in difficult conditions and made safer for people in and around the vehicle? An international research team, including the Institute of Visual Computing at Graz University of Technology (TU Graz), investigated this question as part of the THEIA-XR project.

The researchers aimed to improve human-machine interaction through the use of extended reality technologies. The focus was on the operator, whose field of perception was to be expanded without negatively affecting control performance. The work is published in the journal Computers & Graphics.

When working with snow groomers, for example, the team from TU Graz found that data or VR headsets tend to be counterproductive, while information projected via a repurposed disco laser proved to be a great help.

Immune ‘energy signature’ linked to tuberculosis may explain why some individuals control infection

Researchers at Trinity College Dublin have identified key differences in how immune cells generate and use energy, a process known as cellular metabolism, in people with latent versus active tuberculosis (TB). The findings offer new insights into why some individuals control infection while others develop disease.

The study, published in the Journal of Infection, focused on circulating monocytes, key immune cells involved in the defense against TB infection. The researchers found that cells from people with latent TB remain metabolically flexible, allowing them to mount strong antibacterial responses, whereas cells from people with active TB disease show impaired metabolism and weaker responses to infection.

TB remains the world’s leading infectious killer, with 10.8 million cases and 1.25 million deaths recorded globally in 2023. While many people infected with Mycobacterium tuberculosis never become ill, researchers still do not fully understand why some individuals progress to active disease while others successfully control the infection. The findings could help pave the way for improved TB monitoring tools and future therapies or vaccines that target how immune cells generate energy.

Single-cell transcriptomics and RNAi screening define a hierarchical program of planarian eye regeneration

Some organisms have the capacity to regenerate missing organs de novo. Scimone et al. systematically identify the genes that control a sequence of organ-regeneration steps from differentiation of progenitors to the emergence of final architecture for the case of the planarian eye.

Time Itself Seems to Have a Limit of Precision Due to a Quantum Physics Model

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Hello and welcome! My name is Anton and in this video, we will talk about a proposition that time precision has a major limit.
Links:
https://journals.aps.org/prresearch/p…
Other videos: • Atomic Clock Breakthrough Could Lead To Qu…
• Most Accurate Time Keeping Device in the W…
#quantumphysics #time #science.

0:00 Limits of time measurement.
0:45 Quantum mechanics and why some things happen certain ways.
2:38 Spontaneous collapse model explained.
5:00 Gravity doesn’t like quantum stuff.
7:10 New study — effects on time measurement.
8:50 How accurate then?
10:25 Implications.
11:30 Can this be proven?
12:30 Conclusions.

Enjoy and please subscribe.

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The hardware used to record these videos:

Continue reading “Time Itself Seems to Have a Limit of Precision Due to a Quantum Physics Model” | >

Google Just Dropped The Singularity Bomb

Google DeepMind’s Demis Hassabis says humanity may already be standing in the foothills of the singularity. AI agents are now coding, researching, planning, paying, helping with science, and cutting real work from days to minutes. The big question is no longer whether AI is perfect. It’s whether imperfect AI has already become useful enough to speed up everything around it.

📩 Brand Deals \& Partnerships: [email protected].
✉ General Inquiries: [email protected].
🚀 New Channel: / @space.revolution.

📌 What You’ll See:
Google DeepMind’s warning that we are entering the foothills of the singularity.
SOURCE: https://www.axios.com/2026/05/26/deep… new Gemini for Science tools built to speed up scientific discovery SOURCE: https://blog.google/innovation-and-ai… AWS letting autonomous AI agents make payments and complete transactions SOURCE: https://aws.amazon.com/about-aws/what… AxiomProver helping prove new math results in Lean and Mathlib SOURCE: https://arxiv.org/abs/2602.05090 Biohub’s new world model of protein biology trained across billions of sequences SOURCE: https://biohub.ai/esm/protein ARC-AGI-3 showing the huge gap between today’s frontier AI and human reasoning SOURCE: https://aiforautomation.io/news/2026-… 🚨 Why It Matters This is bigger than another AI model update. Google DeepMind is now openly talking about the singularity, while AI agents are already starting to speed up coding, science, business, and research. Some experts think AGI may be closer than expected, while others say current AI still lacks true intelligence. Either way, the AI race is shifting fast from chatbots into agents that can plan, act, build, discover, and change real workflows. #google #singularity #ai.
Google’s new Gemini for Science tools built to speed up scientific discovery.
SOURCE: https://blog.google/innovation-and-ai…
AWS letting autonomous AI agents make payments and complete transactions.
SOURCE: https://aws.amazon.com/about-aws/what…
AxiomProver helping prove new math results in Lean and Mathlib.
SOURCE: https://arxiv.org/abs/2602.05090
Biohub’s new world model of protein biology trained across billions of sequences.
SOURCE: https://biohub.ai/esm/protein.
ARC-AGI-3 showing the huge gap between today’s frontier AI and human reasoning.
SOURCE: https://aiforautomation.io/news/2026-…

🚨 Why It Matters.
This is bigger than another AI model update. Google DeepMind is now openly talking about the singularity, while AI agents are already starting to speed up coding, science, business, and research. Some experts think AGI may be closer than expected, while others say current AI still lacks true intelligence. Either way, the AI race is shifting fast from chatbots into agents that can plan, act, build, discover, and change real workflows.

#google #singularity #ai

Conversation with Nic Rouleau, part 1: “Some thoughts on the mind as material”

This is a ~1 hour talk and discussion, comprising part 1 of a conversation with a really interesting young neuroscientist, as well as friend, collaborator, and our Center member, Nicolas Rouleau (https://allencenter.tufts.edu/nicolas… goes over unconventional aspects of neuroscience touching on free will, cybernetics, consciousness, and a lot more. We start a discussion which is continued in part 2. For more information:

Nic’s website: www.rouleaulab.com.
X account: @DrNRouleau.

Recent papers to check out:

Sellar, E.P., Rouleau, N. (In Review). A cybernetic framework for synthetic biological intelligence in the era of neural tissue engineering. Preprint doi: 10.31234/osf.io/md2wf_v1.

Kansala, C., Cicek, E., Nkansah-Okoree, V., Golding, A., Murugan, N.J., Rouleau, N. (In Review). Superstitious conditioning forms the experience of free will under causal determinism. Preprint doi: 10.31234/osf.io/fk3yt_v2.

Roskies, A. \& Rouleau, N. (Forthcoming, In Press). Research on brain organoids should prioritize questions of agency, not consciousness. AJOB Neuroscience.

Continue reading “Conversation with Nic Rouleau, part 1: “Some thoughts on the mind as material”” | >
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