Show Notes 11 July 2025
Story 1: University researchers develop a revolutionary closet-sized nuclear reactor: ‘Something no other university has’
Source: The Cool Down via MSN Story by Christine Dulion
- Researchers at Purdue University have developed a groundbreaking, closet-sized nuclear reactor called PUR-1 [Purdue University Reactor Number One] that could reshape the future of clean energy. Here are the key takeaways:
- Purdue University Reactor Number One is the first U.S. reactor licensed to operate with fully digital controls.
- It uses a real-time, AI-powered “digital twin” that predicts reactor performance with 99% accuracy, helping optimize safety and efficiency.
- The reactor also serves as a testbed for quantum-encrypted communications and real-time AI threat detection, bolstering cybersecurity for future systems.
- This research supports the development of small modular reactors, which could provide clean, autonomous energy to remote areas and disaster zones.
- Purdue is building a second digital twin and a full-scale control room to advance testing and remote reactor management capabilities.
- Projects like Purdue University Reactor Number One aim to make nuclear power safer, cheaper, and more accessible—while reducing our dependence on polluting energy sources.
- Reminder: Several companies today are developing small scale nuclear reactors focusing on compact, scalable designs for decentralized energy solutions. Some of the leading manufacturers include:
- NuScale Power – Developing the NuScale Power Module, a small modular reactor (SMR) designed for flexible deployment.
- Holtec International – Working on the SMR-160, a passive safety-focused reactor.
- GE Hitachi Nuclear Energy – Advancing the BWRX-300, a simplified boiling water reactor.
- Westinghouse Electric Company – Developing the eVinci Micro Reactor, designed for remote power applications.
- TerraPower – Founded by Bill Gates, working on Natrium, a sodium-cooled fast reactor.
- X-energy – Developing the Xe-100, a high-temperature gas-cooled reactor.
- Ultra Safe Nuclear Corporation – Focused on the Micro-Modular Reactor (MMR) for industrial and remote use.
- Oklo – Working on the Aurora reactor, a compact fission system.
- Kairos Power – Developing Flibe-cooled reactors for efficient energy production.
- Rolls-Royce SMR – Designing modular reactors for commercial power generation.
- These companies are pushing the boundaries of small-scale nuclear technology, aiming to provide clean, reliable energy for diverse applications, from remote communities to data centers.
Story 2: Scientists design novel battery that runs on atomic waste
Source: Ohio State News Story by Tatyana Woodall
Link: https://news.osu.edu/scientists-design-novel-battery-that-runs-on-atomic-waste/
- Researchers at Ohio State University have developed a prototype battery that harnesses radiation from nuclear waste to generate electricity. The device uses scintillators — materials that emit light when exposed to radiation—paired with solar cells to convert gamma radiation into usable power.
- Side note – Scintillators are materials that light up—literally—when struck by ionizing radiation like X-rays, gamma rays, or high-energy particles. That flash of light is called scintillation, and it’s the key to detecting and measuring radiation.
- Key highlights:
- The battery was tested with two radioactive sources: cesium-137 and cobalt-60, both byproducts of nuclear fission.
- With cesium-137, it produced 288 nanowatts; with cobalt-60, it reached 1.5 microwatts, enough to power tiny sensors.
- Though small in output, the concept shows promise for scaling up to watt-level applications.
- Reality Check: It’s designed for use near radioactive environments like nuclear waste storage or deep-space missions—not for public use.
- Importantly, the battery itself contains no radioactive material, making it safe to handle.
- As lead researcher Raymond Cao put it, the team is “trying to turn waste into treasure.”
Story 3: DARPA smashes wireless power record, beaming energy more than 5 miles away — and uses it to make popcorn
Source: LiveScience.com Story by Ben Turner
- The Defense Advanced Research Projects Agency [DARPA] has shattered previous records in wireless power transmission by successfully beaming over 800 watts of laser energy across 5.3 miles (8.6 km) — enough to pop popcorn at the receiving end.
- This feat was part of DARPA’s Persistent Optical Wireless Energy Relay (POWER) program, which aims to deliver energy instantly to remote or hard-to-reach locations.
- The test, conducted at White Sands Missile Range [New Mexico], used a laser to transmit power with about 20% efficiency. The beam passed through a compact aperture, bounced off a parabolic mirror, and hit solar cells that converted it into usable electricity.
- Key takeaways:
- The system, called PRAD (POWER Receiver Array Demo), obliterated previous benchmarks—such as a previous milestone of 230 watts over 1 mile.
- This technology could one day power unmanned aerial vehicles or deliver energy to disaster zones and battlefields without fuel convoys.
- The popcorn stunt was a nod to the 1985 film Real Genius, where a laser is used to popcorn in a prank—DARPA’s way of saying, “Yes, we’re serious, but we’re having fun too.”
- The article notes that Nikola Tesla would’ve been proud. Here’s the background:
- Nikola Tesla began proposing the idea of transmitting electricity wirelessly through the air in the late 1890s, with public announcements and articles appearing around 1898.
Nikola Tesla’s dream of transmitting electricity through the air was one of his most ambitious and visionary ideas—he called it the World Wireless System. His goal? To send electrical power and communication signals across the globe without wires, using the Earth and its atmosphere as conductors.
- Here’s how he imagined it working:
- The Earth as a Conductor: Tesla believed the planet could act like a giant electrical circuit. He theorized that by injecting high-frequency electrical energy into the ground, it could travel vast distances and be tapped into anywhere on Earth.
- Wardenclyffe Tower: In 1901, Tesla began building a massive tower on Long Island, New York, funded by financier J.P. Morgan. The 187-foot-tall structure, topped with a 68-foot metal dome, was designed to transmit both power and information wirelessly.
- Colorado Springs Experiments: Before Wardenclyffe, Tesla conducted large-scale experiments in Colorado Springs in 1899. He used high-voltage Tesla coils to explore how electricity could be transmitted through the ground and air. He claimed some success, though modern science remains skeptical about the feasibility of his methods.
- Unfortunately, the project ran into financial trouble. Morgan pulled funding when Tesla shifted focus from wireless communication to wireless power, and the tower was never completed. It was dismantled in 1917, and Tesla’s dream of global wireless electricity faded into legend.
- Still, his ideas were far ahead of their time. Today’s wireless charging, Wi-Fi, and even long-distance communication owe a conceptual debt to Tesla’s early experiments. He may not have electrified the world wirelessly, but he certainly sparked imaginations.
Story 4: US doctor performs prostate telesurgery on a patient in Africa
Source: TheEngineer.co.uk
Link: https://www.theengineer.co.uk/content/news/us-doctor-performs-telesurgery-on-patient-in-africa
See video here: https://www.youtube.com/watch?v=rWW32okjhrc
- In a groundbreaking medical first, Dr. Vipul Patel in Florida remotely performed a prostatectomy on a patient in Angola—11,000 km away—using robotic telesurgery.
- The June 14, 2025 procedure marked the first human clinical trial approved by the U.S. FDA to test transcontinental robotic surgery.
- Side note: A prostatectomy is a surgical procedure to remove part or all of the prostate gland, which is a small organ in the male reproductive system located just below the bladder and surrounding the urethra.
- There are two main types:
- Simple prostatectomy: Removes only the inner part of the prostate, typically to relieve urinary symptoms caused by benign prostatic hyperplasia (BPH).
- Radical prostatectomy: Removes the entire prostate gland along with surrounding tissues, often used to treat localized prostate cancer.
- Depending on the case, the surgery can be done through traditional open methods or minimally invasive techniques, including robotic-assisted procedures
- The operation used a Chinese robotic platform called MedBot, connected via a high-speed fiber optic line routed through Brazil. This setup kept latency to just 140 milliseconds—imperceptible to the human brain—allowing Dr. Patel to operate with precision from across the globe.
- This milestone could revolutionize access to surgical care in underserved regions and rural areas, offering new possibilities for remote interventions and emergency support. As Dr. Patel put it, “It was a small step for a surgeon, but a huge leap for healthcare”.
Honorable Mentions
Story: A new technology for extending the shelf life of produce –
Researchers used microneedles to inject fresh-cut crops with melatonin and delay spoilage.
Source: MIT News Story by Zach Winn
Link: https://news.mit.edu/2025/new-technology-extends-produce-shelf-life-0521
- MIT and SMART researchers have developed a novel way to extend the shelf life of produce using biodegradable silk microneedles that inject melatonin directly into harvested plants. Melatonin, a natural plant hormone, helps regulate aging and stress responses.
- Key points:
- The microneedles penetrate the waxy skin of vegetables without causing damage or stress.
- In tests on pak choy, shelf life increased by 4 days at room temperature and 10 days when refrigerated.
- This method could reduce post-harvest food waste, which currently accounts for over 30% of global food loss.
- It offers a low-energy alternative to refrigeration, especially valuable in regions lacking cold storage infrastructure.
As lead researcher Benedetto Marelli put it, this is the first time microneedles have been used to extend the life of fresh-cut crops—a small poke with big potential.
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Story: ‘Smart’ dental implants developed that feel and function like natural teeth
Source: MedicalXpress.com Story by Gaby Clark and Robert Egan
Link: https://medicalxpress.com/news/2025-06-smart-dental-implants-function-natural.html
- Traditional dental implants fuse to the jawbone using a titanium post but lack the sensory feedback of natural teeth because they don’t connect to nerves.
- Researchers at Tufts University developed a “smart” implant coated in biodegradable materials that release stem cells and proteins. These encourage the growth of nerve tissue, potentially allowing the implant to communicate with the brain.
- The new implant includes memory foam-like nanofibers that expand gently to fit the socket, preserving existing nerves and avoiding aggressive bone fusion.
- In rat models, the implants integrated through soft tissue instead of bone, with no signs of inflammation. This suggests a possibility of restored sensory function.
- Further research in larger animal models is needed before human trials. Scientists will also test whether brain activity shows true sensory feedback from the new implants.
- This breakthrough could eventually extend to other bone implants, like hip replacements, by restoring a sense of proprioception—how the body knows where it is in space.
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Story: MIT researchers bond gallium nitride transistors to silicon for faster next-gen wireless devices
Source: TechSpot.com Story by Skye Jacobs
- Researchers from MIT and collaborators have developed a method to integrate high-performance GaN transistors onto standard silicon CMOS chips. The process is low-cost, scalable, and compatible with current semiconductor manufacturing.
- They fabricate numerous miniature GaN transistors, cut them out individually, and bond only the needed ones onto silicon chips using a low-temperature process. This preserves the integrity of both materials.
- Key benefits:
- Higher efficiency and signal strength, as demonstrated by a prototype power amplifier (a key smartphone component).
- Potential improvements in wireless bandwidth, call quality, battery life, and overall connectivity.
- Reduced heat output by spatially distributing GaN transistors across the silicon chip.
- Because the method uses standard fabrication techniques, it could be quickly adopted to enhance both current and next-gen electronics—including quantum applications, as GaN performs well at cryogenic temperatures.
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Story: France has a new laser rifle that can melt electronics from 500 meters away
Source: ZME Science Story by Mihai Andrei
Link: https://www.zmescience.com/research/inventions/silent-laser-rifle-helma-lp/
- France’s new HELMA-LP laser rifle is a compact, silent weapon designed to disable electronics with pinpoint precision. Developed by defense contractor CILAS, it emits an invisible beam capable of melting optics, frying circuits, and blinding sensors from up to 500 meters away.
- Unlike traditional firearms, it makes no noise and leaves no visible trace. The system consists of a rifle connected to a 15-kg backpack of lithium-ion batteries, allowing for short bursts of energy lasting 5–15 seconds, or up to 60 seconds continuously. It’s not meant to destroy drones or missiles, but to discreetly neutralize ground-based electronics like surveillance cameras or communication gear.
- The HELMA-LP is a portable evolution of the larger HELMA-P system, which was used to protect Paris during the 2024 Olympics. Its stealth and precision make it ideal for special forces operations where subtlety and minimal collateral damage are key.