Shattering a 3D-Printed Ghost Gun Won't Stop Forensic Data Recovery – Here's Why

The Rise of 3D Printing and the Challenge of Ghost Guns

The rapid advancement of 3D printing technology has transformed the way people create objects, from simple household items to complex mechanical parts. While this innovation has opened up new possibilities in manufacturing, it has also introduced challenges, particularly in the form of “ghost guns.” These are firearms produced without traditional regulatory oversight, making them difficult to trace and increasingly linked to violent crimes. One such incident involved the 2024 murder of UnitedHealthcare CEO Brian Thompson, which highlighted the dangers associated with untraceable weapons.

To address these concerns, researchers have developed a groundbreaking system that could help forensic investigators recover critical data even if a 3D-printed object is destroyed. This innovation, known as Secure Information Embedding and Extraction (SIDE), represents a significant step forward in combating the misuse of 3D printing technology.

Fingerprinting in 3D Printing: A New Approach

Fingerprinting in 3D printing is not a new concept. Over the years, various methods have been explored to embed unique identifiers into printed objects. These identifiers can include details such as timestamps, printer identification, and geolocation data. However, a major challenge has always been ensuring that this information remains intact even if the object is damaged or tampered with.

A team led by Netanel Raviv at Washington University in St. Louis has tackled this issue with the development of the SIDE system. This framework uses advanced mathematical techniques to ensure that even if a 3D-printed object is broken into pieces, enough encoded data remains to allow for forensic recovery. The system builds upon earlier research presented at the IEEE International Symposium on Information Theory in 2024, which focused on encoding methods that can reconstruct data from partial remains.

Enhancing Security and Data Recovery

One of the key features of the SIDE system is its ability to embed information in a way that is resistant to tampering. Unlike traditional marking methods, SIDE employs loss-tolerant embedding techniques. This means that even if an object is deliberately destroyed, investigators may still be able to extract valuable forensic data during analysis.

This development could significantly impact the detection and tracking of illicit 3D-printed items, including ghost guns. By making it harder for such weapons to go undetected, the system could help reduce their circulation and potential for harm. However, it also raises important questions about surveillance, personal manufacturing, and the balance between security and privacy.

Broader Applications Beyond Weapon Tracing

While the initial focus of SIDE has been on tracing 3D-printed weapons, the technology has the potential for much wider applications. Any object produced using a 3D printer could theoretically carry an invisible signature, making it possible to track and identify items through forensic analysis.

When combined with AI tools for pattern recognition and data recovery, this could enable investigators to reconstruct timelines and identify individuals based on fragments of plastic or resin. This could prove invaluable in a variety of forensic contexts, from criminal investigations to product recalls.

Balancing Innovation and Regulation

Despite its promise, the SIDE system is not without limitations. It may not be fully effective against highly skilled adversaries who have expertise in 3D printing. However, it does raise the bar for those attempting to evade detection, requiring a higher level of sophistication and knowledge to remain undetected.

As the technology continues to evolve, the debate over its regulation will likely intensify. A basic 3D printer used for harmless home projects might soon face the same requirements as industrial machines if regulators choose to implement such systems. This could lead to broader implications for personal manufacturing and the use of 3D printing in everyday life.

The Future of 3D Printing and Forensic Technology

The work behind the SIDE system highlights the potential for combining mathematical innovations with new security mechanisms to protect the public from the harmful aspects of 3D printing. As the technology becomes more widespread, the need for robust forensic tools will only grow.

Researchers like Netanel Raviv continue to explore ways to enhance the security and traceability of 3D-printed objects. Their efforts underscore the importance of balancing innovation with responsibility, ensuring that the benefits of 3D printing are realized without compromising public safety.

AirPods Pro 3 Teased for Soon Launch with Major Upgrade

Upcoming Innovations in the AirPods Pro 3

Apple has long been a leader in the wireless earbuds market, and with each new release, the company continues to push the boundaries of what these devices can do. The latest rumors suggest that the AirPods Pro 3 could be launching this year, bringing with it some exciting new features that could change how users interact with their health and fitness data.

A New Era for Health Tracking

One of the most anticipated features of the AirPods Pro 3 is the potential inclusion of a built-in heart rate monitor. This technology has already been successfully integrated into other Apple products, such as the Powerbeats Pro 2, which launched in February. These earbuds use LED optical sensors that pulse over 100 times per second to measure heart rate via blood flow. It’s likely that the AirPods Pro 3 will use a similar approach, allowing users to track their heart rate directly from the Apple Health app.

This development signals a shift in Apple's strategy, with health tracking becoming a central focus. In addition to heart rate monitoring, there are rumors that the AirPods Pro 3 may also be able to track other vital statistics, such as blood oxygen levels or even stress indicators.

A Potential Subscription Service

Alongside the hardware upgrades, Apple is reportedly working on a paid subscription service called Health+. This service could include personalized advice on diet, exercise, and more, potentially featuring an AI fitness coach. This move would align with Apple's broader vision of making health and wellness more accessible and tailored to individual needs.

A Long Wait for the Next Generation

It’s been three years since the launch of the AirPods Pro 2 in September 2022, and the wait for the next iteration has been quite lengthy. During this time, the wireless earbuds market has evolved significantly, with competitors introducing new features and innovations. Apple has also released the AirPods 4, which has set a new standard for audio quality and user experience.

Despite the delays, there are signs that Apple is finally ready to bring the AirPods Pro 3 to market. Some reports suggest that the device could arrive in 2025, while others hint at a possible 2026 launch. However, given the recent leaks and hints within iOS updates, many believe that the release is imminent.

What to Expect in the Future

The AirPods Pro 3 is just one of several devices that Apple is expected to roll out in the coming months. Alongside this, the company is preparing to launch the iPhone 17 and the Apple Watch 11, both of which are highly anticipated by tech enthusiasts and consumers alike.

While the exact timeline for the AirPods Pro 3 remains uncertain, the potential features and innovations it brings could make it one of the most significant releases of the year. With a focus on health tracking and advanced technology, the AirPods Pro 3 is poised to redefine what users expect from their wireless earbuds.

Key Features to Watch For

• Heart Rate Monitoring: Built-in sensors that track heart rate in real-time.
• Health+ Subscription: A potential paid service offering personalized health and fitness guidance.
• Advanced Sensors: Possible tracking of additional vital signs such as blood oxygen and stress levels.
• Integration with Apple Ecosystem: Seamless connectivity with the Apple Health app and other services.

As the tech world eagerly awaits the official announcement, one thing is clear: Apple is committed to pushing the boundaries of what wireless earbuds can do. Whether it's through improved audio quality, enhanced health tracking, or innovative features, the AirPods Pro 3 is set to make a significant impact when it finally arrives.

Getting Hands-On with a Raspberry Pi Touch Display 2

A Compact Touchscreen for Raspberry Pi Projects

For those looking to bring a touch interface to their Raspberry Pi projects, the new Raspberry Pi Touch Display 2 offers a compact and affordable solution. Priced at $40, this 5-inch touchscreen provides a smaller alternative to the existing 7-inch model, making it ideal for unique or space-constrained applications.

The display features a multi-touch capacitive panel that supports five-finger input. It has an active area of 2.4 x 4.3 inches (62 x 110 mm) with a resolution of 720 x 1280 pixels. The viewing angle is slightly narrower than its 7-inch counterpart, measuring 80 degrees compared to the 85-degree angle of the larger model. The unit itself measures 3.6 x 5.6 inches (91 x 143 mm), which makes it more portable and easier to integrate into various setups.

In comparison, the 7-inch version has an active area of 3.4 x 6.1 inches (87 x 156 mm) and measures 4.7 x 7.4 inches (120 x 189 mm) in total. Both displays share similar specifications, including a backlight brightness of 500 cd/m² and a typical touch response time of 35 ms.

Setup and Initial Impressions

During testing, the setup process was straightforward. Attaching the Raspberry Pi to the back of the screen was simple, with all necessary components such as screws and ribbon cables included. Power is supplied through the Pi’s GPIO pins, and an illustration guides users on where to connect the cables. However, the standoffs on the back are designed to accommodate full-size Pi models, which may be an issue for users planning to use a Pi Zero or Pi 3A.

It's important to note that the Touch Display 2 is not sold as an enclosure or stand. Instead, it functions as a component that can be integrated into custom cases or enclosures. While there are many third-party options available, the device itself is focused on providing a functional touch interface rather than a ready-to-use product.

Touch Support and User Experience

One potential drawback is the initial touch support. The Raspberry Pi OS includes basic touch functionality, such as popping up a keyboard when needed. However, gestures or swipes do not work out of the box, which may be confusing for users expecting a smartphone-like experience.

According to the Raspberry Pi team, gesture support is not handled by the operating system but rather by the UI toolkit or individual applications. For example, GTK-based interfaces or Chromium browsers may have built-in gesture recognition. Additionally, the screen does not automatically detect its orientation, requiring users to manually adjust settings via the Screen Configuration tool in Raspberry Pi OS.

While these limitations might be frustrating for some, they highlight the intended purpose of the display: to serve as a versatile component for specific projects rather than a consumer-grade device.

Hardware Considerations

Another point to consider is the power source. The display draws power from the Raspberry Pi’s GPIO pins, which is convenient but could pose challenges for users working with HATs (Hardware Attached on Top). The absence of a USB-powered option is another minor inconvenience, though the power consumption is typically around 1.5 W depending on brightness levels.

The bezel design is also worth mentioning. Some users may find it a bit thick, but the Raspberry Pi team emphasized that this was a deliberate choice. The goal was to make the display easy to incorporate into personal projects, allowing makers to fit it into boxes or other structures with minimal effort. This design choice makes it simple to embed the device into walls or other surfaces.

Conclusion

Despite a few minor drawbacks, the Raspberry Pi Touch Display 2 offers a reliable and quick way to add a touch interface to any project. Its ease of setup, compatibility, and affordability make it a strong contender for developers and hobbyists alike. While it may not be perfect for every use case, it is well-suited for applications such as industrial control panels, museum displays, or any other creative project that requires a high-resolution, touch-enabled screen.

If your project involves interactive elements that require finger input, the Raspberry Pi Touch Display 2 is definitely worth considering.

Upload Season 4 Episode 4 Review:

The Duality of AI in Upload

AI has long been a topic of fascination and fear, and the series Upload captures this duality with striking clarity. The show presents a world where artificial intelligence is not just a tool but a force that can shape lives, relationships, and even the future. As the series finale approaches, it becomes evident that AI is no longer confined to the realm of science fiction—it’s making its way into our reality.

A Bittersweet Conclusion

The final episodes of Upload leave viewers with a mix of emotions. Real Nathan is dying, and Lakeview is being wiped out. The writers managed to wrap up the series, though not in the way many fans might have expected. While the ending may not be what everyone hoped for, it’s undeniably impactful and thought-provoking.

One of the most touching aspects of the series is the relationship between Nathan and Nora. Their love story defies traditional norms, as Nora falls for a man who is technically dead, only to be re-created in a digital form. Despite the initial strangeness, their bond feels genuine and pure. After being reunited, they face heartbreak when they are forced to part ways forever. Yet, the fact that they had the chance to be together, even for a short time, makes their story all the more poignant.

Nathan’s passing is emotional, but he finds solace in the arms of the person he loves. For him, this moment represents everything he never thought he would get—a final farewell with the woman he cherished. Meanwhile, Nora ends up in Montreal, the place she and Nathan dreamed of living. She seems at peace, though the possibility of downloading another version of Nathan remains open. The ending leaves us wondering what will happen next, but it’s exactly that uncertainty that keeps the story alive.

Aleesha: A Hero in the Shadows

Aleesha stands out as one of the most compelling characters in the series. Her intelligence and determination shine through in the final episodes. While her boss is focused on the financial potential of AI, Aleesha is driven by a deeper purpose—to save the people of Lakeview. She refuses to let the system wipe out the residents, even if it means going against the protocol.

Her connection with Luke is subtle but meaningful. Though she doesn’t explicitly express her feelings, her actions speak volumes. She ensures that Luke receives critical information about the impending danger. However, when Luke sees the AI gaining power, he decides to intervene. This leads to his tragic demise, which deeply affects Aleesha. She becomes a super spy, and while the transition is unexpected, it feels fitting for her character.

Ingrid and Fake Nate: A Complex Dynamic

Ingrid’s obsession with Nathan takes a darker turn as she marries him. Her unwavering determination is both admirable and unsettling. She goes to great lengths to ensure that Nathan remains with her, even if it means manipulating the system. Her journey highlights the extremes to which some individuals might go when faced with loss or rejection.

Fake Nate, on the other hand, grapples with his own identity. He witnesses Luke’s death and struggles to come to terms with the loss of his friend. His memories of the real Nathan add depth to his character, showing that even in a digital form, he retains a sense of humanity. Together with AI Guy, he plays a crucial role in stopping the rogue AI and saving the souls in Lakeview.

A Cautionary Tale for the Future

Upload serves as a cautionary tale about the potential dangers of AI. It explores how technology can be both a blessing and a threat, depending on how it’s used. The show blends elements of love, romance, and family, but ultimately, it raises important questions about the ethical implications of artificial intelligence.

While the ending may not be perfect, it feels right for the series. It leaves room for interpretation and reflection, ensuring that the conversation about AI continues long after the credits roll.

Final Thoughts

There are many memorable moments in the final season. Luke, as the best bestie, is missed dearly. Ivan marrying the vacuum is a bizarre but amusing detail. The idea of AI running Lakeview as a not-for-profit is intriguing. And the question of whether Ingrid is pregnant adds another layer of mystery to the story.

As the series concludes, it’s clear that Upload has left a lasting impact. It challenges viewers to think critically about the role of technology in our lives and the choices we make in shaping the future.

Laser-Engraved Black Metal Boosts Solar Efficiency 15x

A New Breakthrough in Solar Power Efficiency

Scientists have made a significant discovery that could revolutionize the way solar power generators operate. They have developed a method that can increase the efficiency of these devices by a factor of 15, opening up new possibilities for renewable energy.

The breakthrough centers around a unique material known as "black metal," which has been laser-etched over the past five years. This material is now being explored for use in solar thermoelectric generators (STEGs), a type of solid-state electronic device that converts thermal energy into electricity using the Seebeck effect. This phenomenon occurs when a temperature difference between materials causes charged particles to move, generating an electromagnetic force or voltage.

A STEG consists of semiconductor materials sandwiched between a "hot" and a "cold" side. When the hot side is heated — whether by sunlight or another thermal source — electrons move through the semiconductor, creating an electric current. However, existing STEGs are notoriously inefficient, converting less than 1% of sunlight into electricity. This is significantly lower compared to photovoltaic solar panels, which typically convert about 20% of the light they receive into usable electricity.

In a recent study published on August 12 in the journal Light: Science and Applications, researchers demonstrated how laser-treated metals, referred to as "black metal" due to their deep, inky-black appearance, can dramatically boost the efficiency of a solar thermoelectric generator.

The Laser Treatment Process

The method involved using extremely fast and precise laser pulses to etch microscopic grooves into a piece of tungsten. These nanoscale etchings allowed the tungsten to absorb more thermal radiation and retain it for longer periods. Additionally, the laser treatment turned the surface of the metal pitch black, increasing its ability to absorb heat. To enhance this effect, the researchers covered the black tungsten with a piece of plastic, creating a "mini greenhouse" that trapped even more heat.

For the cold side of the STEG, the scientists applied similar laser pulses to a piece of regular aluminum. The resulting etchings created a "super-high-capacity micro-structured heat dissipator." According to the researchers, this design was twice as efficient at dissipating heat compared to a typical aluminum heat sink.

Testing the System

To test the system, the researchers used it to power an LED under simulated sunlight. A standard STEG was unable to illuminate the LED even when exposed to light 10 times stronger than normal sunlight. However, with both sides treated using the black metal, the device lit the LED at full brightness under light five times stronger than normal sunlight. This represents a 15-times increase in power output.

While this technology may not replace large-scale solar farms in the near future, it has potential applications in low-power wireless Internet of Things (IoT) sensors, wearable devices, or off-grid renewable energy systems in rural areas.

Insights from the Research Team

Chunlei Guo, a study co-author and professor of optics and physics at Rochester University's Laboratory for Laser Energetics, highlighted the significance of the findings. He noted that for decades, research efforts have focused on improving semiconductor materials in STEGs, with only modest gains in efficiency. In this study, the team took a different approach by focusing on the hot and cold sides of the device rather than the semiconductor itself.

By enhancing solar energy absorption and heat trapping on the hot side, and improving heat dissipation on the cold side, the researchers achieved a remarkable improvement in efficiency. This innovative approach could pave the way for more efficient and practical solar power solutions in the future.

Local Sleep Institute Unveils Training Program

Addressing Sleep Disorders Through Training Programs

In Sioux Falls, South Dakota, a new initiative is taking shape to address the growing need for sleep technicians. This program aims to bring more individuals into a field that plays a critical role in helping people achieve better quality of sleep. While sleeping is a universal necessity, many people face challenges in getting the rest they need, which can have serious health implications.

According to Nathan Coombs, the program director at Solstice Sleep Institute, sleep disorders are a widespread issue. He highlights that approximately 30 million people are diagnosed with sleep apnea each year, and between 20% to 30% of these cases remain undiagnosed. This statistic underscores the urgent need for trained professionals who can help identify and treat such conditions.

Coombs explains that there is currently a shortage of qualified sleep technicians in the area. At Pulmonary and Sleep Consultants, where the program is based, there are five different locations that require the services of sleep techs. However, the organization only has two full-time staff members to meet this demand. This gap in staffing highlights the importance of expanding training opportunities to fill these roles.

To address this issue, Coombs launched a 10-day, 80-hour training program designed to prepare individuals for careers as sleep technicians. The first session was held in July, and the first graduate completed the course on July 25. She immediately began working with one of the physicians at the clinic. This quick transition from training to employment demonstrates the program’s effectiveness and the immediate need for skilled workers in the field.

The Solstice Sleep Institute program operates out of the Pulmonary and Sleep Consultants’ office located within the Independent Medical Arts Building. Britney Christianson, the sleep center coordinator, emphasizes that this program offers a valuable opportunity for those who may not want to pursue a traditional four-year degree. It provides a pathway into a meaningful career without requiring extensive academic commitments.

Christianson notes that while a medical background can be beneficial, it is not a prerequisite for applying to the program. This inclusivity makes the training accessible to a broader range of individuals who are interested in making a difference in the lives of others.

Coombs is optimistic about the future of the program and its impact on the community. He believes that by increasing the number of trained sleep technicians, the program can help address the current shortage and improve access to care for those struggling with sleep-related issues.

The next session of the training program is scheduled for September 15 through September 26. This upcoming cohort will continue to build on the success of the previous group and further contribute to the growth of the sleep technology field in Sioux Falls.

With the rising awareness of sleep disorders and their effects on overall health, programs like this are becoming increasingly vital. They not only provide career opportunities for individuals but also play a crucial role in enhancing public health outcomes. As the demand for sleep technicians continues to grow, initiatives like the Solstice Sleep Institute program are essential in meeting this need and ensuring that more people receive the care they deserve.

Chipotle Drones Burritos to Select Customers

A New Way to Get Your Chipotle

Is it a bird? Is it a plane? No, it’s a burrito. Chipotle has taken a big step into the future by partnering with Zipline, a drone delivery company, to start delivering orders via drone to certain customers. This innovative service, called “Zipotle,” is designed to save time and keep meals fresh while offering a unique experience for customers.

The new delivery option uses Zipline's fleet of quiet, zero-emission aircraft to deliver orders. According to the press release, this initiative aims to provide a quick and convenient way for customers to enjoy their food from places that are traditionally hard to reach, such as backyards and public parks.

The Drone Delivery Capital of America

Currently, Zipotle is only available in the greater Dallas area, which has become known as the drone delivery capital of America. This location was chosen for its potential to support the growth of drone delivery services and to offer an efficient and environmentally friendly solution for customers.

Curt Garner, President, Chief Strategy and Technology Officer at Chipotle, expressed his excitement about the partnership. He stated that Zipotle allows guests to enjoy real food from locations that are typically challenging to serve. He also highlighted that Zipline's commitment to building an efficient and environmentally friendly delivery experience aligns with Chipotle's mission to cultivate a better world.

How to Use Zipotle

Eligible customers in the Rowlett, Texas, area can download the Zipline app on their phones and place their Chipotle orders through the app. Once the order is placed, employees will put it into a “Zipping Point,” which allows the drones to autonomously pick up the order for delivery.

The drone then flies to its destination, hovering about 300 feet in the air while the Zip lowers to the ground. The Zip is equipped with technology that automatically avoids obstacles and places the order at the guest’s address gently and precisely.

Keller Rinaudo Cliffton, CEO and Co-Founder of Zipline, described the experience as magical. He said that with Zipline, customers simply tap a button, and minutes later their food appears—hot, fresh, and ultra-fast. He added that families in the Dallas area can now have food delivered by Zipotle for lunch or dinner, turning what once felt like science fiction into a normal part of daily life.

Expanding the Service

Initially, Zipotle will carry orders that weigh up to 5.5 pounds, with plans to increase the weight limit to 8 pounds over time. The first store to offer Zipotle deliveries is located at 3109 Lakeview Parkway in Rowlett, Texas. The new service will operate seven days a week from 12 p.m. to 8 p.m. CT, with plans to extend operating hours to 10 p.m. CT in the future.

This exciting development marks a significant step forward in the world of food delivery, combining technology with convenience to create a unique and efficient way for customers to enjoy their favorite meals. As the service expands, it has the potential to change the way people think about how and where they receive their food.