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February 12, 2025
Transparent Solar Cells Halve Greenhouse Energy Use
Key Takeaways
1. Near-transparent solar panels replaced regular glass in greenhouses, reducing solar radiation intensity from 80% to 55%, while eliminating harmful UV radiation.
2. Most vegetable types, including peppers, tomatoes, and lettuce, showed comparable or improved growth in the new setup, while some crops like garlic and wheat grew more slowly.
3. Greenhouses with solar modules met about 50% of their electricity needs, demonstrating significant energy efficiency.
4. Water usage in the solar-equipped greenhouses was reduced by nearly one third.
5. The research highlights the potential of near-transparent solar technology for greenhouses, especially in regions with high sunlight exposure.
A detailed research conducted by Murdoch University in Perth, Australia, investigated how transparent solar panels affect the energy balance in greenhouses. Over a span of almost a year, the growth of 18 different vegetable types was monitored.
Impact of Near-Transparent Solar Cells
In the experiment, near-transparent solar cells were utilized to substitute the regular glass roofs and faces of four greenhouses. This change led to a drop in solar radiation intensity from 80% to 55% when compared to outdoor measurements. Nonetheless, the way light was absorbed varied across different wavelengths: the special glazing nearly eliminated UV radiation, which can negatively impact plant growth, while standard glazing only reduced it by about 86%. In contrast, traditional greenhouses excel in allowing light within the visible spectrum, which is essential for photosynthesis.
Surprising Growth Results
The findings were impressive: even with less overall light, plants like peppers, tomatoes, and lettuce thrived equally well in both environments. Interestingly, chili peppers showed even better growth. However, crops such as garlic, wheat, and sunflowers experienced slower growth rates.
Solar Power and Efficiency
Various aspects like ventilation, humidity control, computer management, and lighting can all be powered using solar energy. The potential for significant savings is thus clear: greenhouses equipped with solar modules managed to fulfill approximately half of their electricity requirements. Additionally, it was observed that water usage was reduced by nearly one third.
It’s important to consider that the area surrounding Perth is among the sunniest globally. Only cities like Los Angeles or Cape Town reach similar levels of sunlight exposure throughout the year. In the greenhouse regions of southern Spain, for instance, the energy output might be a bit lower. However, given the impressive results seen in plant growth, it still seems promising to implement such technology.
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Tags: Greenhouse Efficiency, Murdoch University, Solar Modules
February 11, 2025
Xiaomi Fascia Gun 3 Mini: Lightweight Power Under a Soda Can
Key Takeaways
1. Launch and Pricing: Xiaomi has introduced the Mijia Fascia Gun 3 Mini in China, priced at 229 yuan ($31), available from February 12.
2. Dual-Mode System: The device features fixed-frequency and variable-frequency massage options, each with three intensity levels tailored for user comfort and needs.
3. Performance and Noise Level: Powered by a brushless motor, it delivers up to 12kg of thrust with 6mm penetration into fascia, operating quietly at 40dB.
4. Portability and Design: Weighing only 357g, it is lightweight and compact, making it easy to carry. It includes an intelligent memory function and three interchangeable massage heads for versatility.
5. Battery Life and Charging: The 1900mAh lithium battery allows up to 9 hours of use on the lowest setting, charges via Type-C port, and lasts approximately 30 days with 15 minutes of daily use.
Xiaomi has launched the Mijia Fascia Gun 3 Mini in China, following the previous year’s release of the Mijia Massage Gun 3. The pricing for this new device is set at 229 yuan ($31), and it will be available starting from February 12.
Specifications of the Xiaomi Fascia Gun 3 Mini
Equipped with a dual-mode system, the Fascia Gun 3 Mini provides both fixed-frequency and variable-frequency massage options. Each mode has three intensity levels, allowing users to tailor their experience to their individual needs. The fixed-frequency mode delivers a steady massage ideal for pre- and post-exercise relief, while the variable-frequency mode adjusts the intensity dynamically for a deeper sense of relaxation.
Performance and Features
This massage gun is powered by a robust brushless motor that can produce up to 12kg of thrust, penetrating 6mm into the fascia layers to alleviate muscle fatigue quickly. Impressively, it operates quietly, making only about 40dB of noise, which is similar to the sound of a refrigerator.
One standout feature is the smart pressure-sensing LED ring, giving users real-time feedback on the pressure applied. The color of the indicator light changes: it’s off when the pressure is low, white when it’s just right, and orange when too much pressure is applied. This ensures users can keep their massages safe and effective without risking muscle strain.
Design and Portability
Lightweight and portable, the Fascia Gun 3 Mini weighs just 357g, roughly equivalent to a soda can. Its compact design means it can be conveniently stored in a bag or pocket, making it ideal for use at home, in the office, during workouts, or on the go.
For user convenience, it features an intelligent memory function that recalls the last used mode and intensity level, letting users quickly pick up where they left off. Additionally, it comes with three interchangeable massage heads: a flat head for general muscle relaxation, a ball-shaped head for larger muscle groups like shoulders and thighs, and a U-shaped head designed for focused relief around the spine and calves.
Battery Life and Charging
The Fascia Gun 3 Mini utilizes a 1900mAh lithium battery, providing up to 9 hours of use on the lowest setting and around 5 hours when under a 2kg load. With just 15 minutes of daily usage, it can last for up to 30 days on a single charge. It charges easily through a Type-C port for added convenience.
Additionally, the device boasts a sleek unibody design with an ergonomic grip for improved comfort. It is available in three chic colors: Deep Space Gray, Light Sand, and Light Blue.
Related Products and News
In other news, Xiaomi has also launched the Mijia Corded Vacuum Cleaner priced at $26, which offers 600W power and 16kPa suction, along with the Xiaomi Smart Dumbbells that come equipped with motion sensors, an LED display, and app integration.
Tags: massage gun, Mijia Fascia Gun 3 Mini, Xiaomi
February 11, 2025
Siemens to Develop Offshore Wind Turbine for 7,000 Homes
Key Takeaways
1. Siemens Gamesa has received approval to develop an offshore wind turbine prototype capable of generating over 21.5 MW, with a deadline to finalize it by 2027.
2. The first turbine of the new SG DD-276 model is being tested in Denmark, but specific details about the model remain undisclosed.
3. Siemens received a €30 million ($33 million) grant from the European Union for the “Highly Innovative Prototype,” expected to be operational by December 2024.
4. The rotor of the new turbine will measure 276 meters, potentially supplying energy to around 7,000 homes.
5. This new model could rival the 22 MW MySE turbine from Chinese company Mingyang Smart Energy, while Siemens’ current largest turbine is rated at 14 MW.
The competition among companies to build the most efficient wind turbines has reached a significant milestone. Siemens Gamesa has received approval to create an offshore prototype that has the potential to generate over 21.5 megawatts (MW). The Danish Energy Agency has issued a certificate allowing the company until 2027 to finalize the SG DD-276 model.
Testing in Denmark
Siemens is currently launching the first turbine of this model in Denmark to assess its functionality. Nevertheless, the company hasn’t shared any additional specifics about the new model being tested.
Funding and Specifications
In 2024, Siemens was awarded a grant of $33 million (EUR 30 million) from the European Union for this “Highly Innovative Prototype”. As per the details shared with the Danish Energy Agency, the rotor is expected to measure 276 meters, which is sufficient to supply energy to approximately 7,000 homes, according to the EU document.
The EU funding documentation anticipates that the turbine will be operational by December 2024, aligning with the closure of the funding period.
Comparison with Competitors
This new model could be combined with the MySE 22MW from Chinese company Mingyang Smart Energy, which can produce as much as 22 MW. Up to now, the largest turbine from Siemens Gamesa is rated at 14 MW, and this model is actively generating power at the Osterild wind farm.
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Tags: offshore wind turbine, SG DD-276, Siemens Gamesa
February 10, 2025
Acebeam TAC 2.0 EDC Flashlight: Use 14500 or AA Battery
Acebeam has introduced the updated TAC AA 2.0 tactical flashlight, featuring some subtle enhancements. This compact flashlight is designed for everyday carrying (EDC) and can run on either a 14500 battery with 3.7 volts or a standard AA battery. However, users must take out the battery from the flashlight to charge it through USB-C.
Minor Modifications to Design
The body of the TAC AA 2.0 has only seen slight adjustments, making it just 0.008 inches longer than its predecessor. A notable improvement is the belt clip, which can now be attached to hats equipped with sun visors—a feature that the previous version lacked.
Increased Choices in EDC Flashlights
Selecting the right EDC flashlight has become a bit trickier due to the Acebeam TAC 2.0’s introduction. Specifically, it comes in two model variants, each in different colors. The black model utilizes a TN LED with technical specs similar to the earlier model that featured a Nichia LED.
In turbo mode, it can throw light up to 920 feet with a brightness of 1,000 lumens for 35 seconds before it dims to 500 lumens, lasting for an additional 49 minutes. The other modes—5, 50, and 260 lumens—provide runtimes of 58 hours, 14 hours, and 2 hours, respectively.
Variants and Performance Differences
Conversely, the red and blue versions are fitted with an STN LED and seem to have a different optic. In these models, the high-output modes are slightly lower, at 240, 450, and 900 lumens, but they remain comparable to the black version.
Nevertheless, the throw distance increases to 1,180 feet while the battery life stays the same. Both types of LEDs offer a cool light with a color temperature of 6,500 Kelvin. Additionally, two rubber diffuser covers can convert the flashlight into a small lantern, providing either white or red light options.
Acebeam is already offering the new flashlight for sale. The price, including the battery, is $39.90, which is the same as the original model. However, it’s worth noting that this new EDC gadget is already available for a reduced price of $29 on Amazon.
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Tags: Acebeam TAC AA 2.0, EDC flashlight, tactical flashlight
February 9, 2025
Genmitsu Cubiko: CNC Desktop Machine with Early Bird Discount
The Genmitsu Cubiko is a CNC system designed to bring professional-grade technology to everyday users. It is promoted as a small and cost-effective option, currently available for early preorders through a crowdfunding initiative, with prices beginning at $299. However, it’s crucial for potential backers to understand the high financial risks that come with crowdfunding projects. Even if the product does get delivered, there’s no assurance that it will meet the promised quality and features.
Specifications and Size
With dimensions of 300 x 335 x 318 mm (11.8 x 13.2 x 12.5 in), the Cubiko can handle workpieces measuring up to 150 x 110 x 40 mm (5.9 x 4.3 x 1.6 in) by utilizing a variety of tools. Users can choose between rotating tools and a laser module for their projects. The included 5.5-watt diode laser is suitable for engraving tasks, while the rotating tool allows for milling in wood and metal. Two other modules are intended for finishing rather than heavy-duty work: the drawing module accepts pens with diameters from 3 to 18 mm, and a polishing module, expected to launch later, will aid in restoring scratched surfaces.
Performance and Control
The official specifications indicate that the Cubiko has a machine power of 120 watts and a spindle power of 75 watts, which allows it to reach a maximum spindle speed of 10,000 RPM. It offers a precision of 0.1 mm and comes with an enclosure designed to reduce the risk of injuries and maintain noise levels around 60 dB. Users can control the machine easily through an app, and it is compatible with multiple software programs. The company plans to begin shipping the Genmitsu Cubiko by May 2025.
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Tags: CNC system, crowdfunding, Genmitsu Cubiko
February 8, 2025
Thermogalvanic Cell: 3X More Efficient Than Fridges & Heat Pumps
It’s a small prototype that the researchers at Huazhong University of Science and Technology in Wuhan have developed, but the performance metrics and concepts shown in the related scientific study could soon render some commonly used technologies appear quite inefficient.
Thermogalvanic Cell Explained
The authors assert that a thermogalvanic cell can establish a temperature difference between two distinct regions. This device can transform electrical energy into chemical energy while utilizing only a minimal amount of electricity, meaning the thermodynamic cycle can’t keep pace.
All types of refrigerators and freezers operate on this principle. A mechanical compressor, which runs on electricity, shifts heat from one place to another. Similarly, a heat pump essentially performs the same function; it can generate warm air for a home while pushing the cold air outside or the other way around.
Coefficient of Performance
A significant component in this scenario is the CoP (Coefficient of Performance). An efficient configuration would yield a coefficient around 5. For a heat pump, this means generating five times the heat output compared to the electric energy it consumes.
In stark contrast, the previously mentioned thermogalvanic cell boasts an impressive coefficient of 14.2. This was accomplished by either reducing or oxidizing iron ions using electricity, which effectively creates rust. When iron is oxidized, it produces heat, but when it is reduced, it absorbs heat.
Future Applications
Allegedly, the system can be easily duplicated and adjusted for size with minimal effort. This suggests that the heat pump alternative could be implemented in refrigerators or systems for heating and cooling homes. However, before this innovative technology can be adopted, it must transition from the lab setting and prove its efficiency in practical applications.
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Tags: Coefficient of Performance, Huazhong University, Thermogalvanic Cell
February 8, 2025
Acebeam Launches Flat EDC Flashlight with Red, White, and UV Light
Acebeam has launched a new flashlight designed for everyday carry (EDC). The UC20 features a flat design with a clip that can attach to belts or hats with visors. This style is similar to other models like the Nitecore EDC2x and the Olight Arkfeld series.
Unique Light Sources
One standout characteristic of the UC20 is its three different light sources. The main light can reach a maximum brightness of 1,000 lumens, while it also includes UV and red lights for added versatility.
Battery Specifications
Sadly, the Acebeam EDC flashlight comes with a non-removable battery that charges via USB Type-C in just 1.2 hours. This battery has a capacity of 1,000 mAh, equating to roughly 3.6 to 3.7 watt-hours, which is on the lower side for flashlights. Nevertheless, the UC20’s power needs are modest, making this capacity adequate for a reasonable usage time.
For instance, the primary LED can emit 5 lumens for an impressive 63 hours. When set to 60 lumens, the duration drops to 8 hours, while 200 and 450 lumens provide runtimes of 2.5 hours and 1 hour, respectively. However, using turbo mode rapidly depletes the battery, lasting only two minutes before reverting to 450 lumens for another 54 minutes.
Water Resistance and Pricing
Conversely, the red LED consumes a lot of power; it lasts only 4.3 hours at 8 lumens, and 23 lumens will fully drain the battery in just over an hour. The UV light can shine for a maximum of 2.3 hours.
The UC20 is designed to be tough, capable of being submerged in water up to 6.5 feet deep. Currently, Acebeam is offering the UC20 at their official store for $59.90. This flashlight is available in both green and black for EDC use.
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Tags: Acebeam UC20, EDC flashlight, rechargeable battery
February 7, 2025
Ambrane MiniCharge 20: Compact 20,000mAh Power Bank with Type-C
Ambrane has introduced the MiniCharge 20, a compact power bank ideal for travelers, hikers, and everyday users. Proudly manufactured in India, it boasts a robust 20,000mAh battery and comes with an integrated Type-C cable that also acts as a convenient carrying loop.
Features of Ambrane MiniCharge 20
The MiniCharge 20 is safe for air travel and constructed using ISO-certified materials ensuring durability and safety. It has an elegant metallic finish and provides various charging options, such as a 22W Type-C port, a 22W USB-A port, and a built-in 20W Type-C cable. Battery levels are easily monitored through LED indicators, while advanced protection circuits safeguard devices and prolong battery life.
This power bank is capable of fast-charging with protocols like PD 3.0, QC 3.0, PPS, and VOOC, making it suitable for both Type-C and USB-A devices. To fully recharge, it requires about 5 hours and 40 minutes when using a 20W charger.
Pricing and Availability
The MiniCharge 20 is priced at Rs. 1,899 and comes in two colors: Gradient Blue and Titanium. It is available for purchase online through platforms like Flipkart, Amazon.in, and Ambrane’s official site, as well as in physical stores such as Croma, Vijay Sales, and Reliance Digital. It can also be quickly delivered through services like Zepto, Blinkit, and Swiggy Instamart in major cities. The power bank includes a 6-month warranty.
Additional Launches
In other news, Ambrane has also released the MagSafe 10,000mAh Power Bank. This model supports 22.5W fast charging with a Type-C port (22W), USB-A port (22.5W), and a 15W MagSafe wireless output. The device can be fully charged in just 3.5 hours with a 20W PD charger, and it is compatible with PD 3.0, QC 3.0, VOOC, and PPS charging protocols.
Tags: Ambrane MiniCharge 20, fast charging, Portable Power Bank
February 7, 2025
WUQI Licenses Ceva-Waves WiFi 6 IP for New Chip Development
Ceva-Waves, a branch of semiconductor firm Ceva that focuses on WiFi technology, has recently shared the news about launching its prebuilt WiFi 6 STA IP platform within a new Bluetooth/WiFi combination chip produced by WUQI Microelectronics. This merger allows the WQ9201 chip to maintain a compact design along with a low-power, high-performance WiFi 6 modem. Additionally, Ceva is supplying a FullMAC software stack, which helps to relieve the CPU in WUQI’s wireless chip, enabling it to manage the complex tasks involved in protocol switching and the coordination of WiFi and Bluetooth.
Efficient Wireless Management
With Ceva handling the intricate parts, the WQ9201 wireless SoC features a unique dual-band RF architecture that functions on both 2.4GHz and 5GHz bands. WUQI also integrates a custom CMOS power amplifier to lower energy usage in devices that run on batteries. This emphasis on reducing size and increasing power efficiency enables the WQ9201 to achieve one of the tiniest footprints in the industry, all while providing excellent baseband performance.
Industry Recognition
The WUQI chip has been honored with the 2024 China Core Excellent Technology Innovation award and is utilized in consumer electronics, including devices from Honor and smart home products such as those from TP-Link. Qiang Gu, who leads WUQI’s WiFi product division, stated that the WQ9201 is set to take full advantage of Ceva’s WiFi 6 IP capabilities to offer “unprecedented WiFi throughout efficiency,” addressing the demands of HD streaming and the Internet of Things (IoT).
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Tags: Ceva-Waves, TP-LINK, WQ9201
February 6, 2025
LG PuriCare AeroHit Air Purifier with 360-Degree Filtration Released
LG has revealed its newest PuriCare AeroHit Air Purifier to the world. This latest model is designed for spaces up to 365 ft² (~34 m²) and boasts a clean air delivery rate (CADR) of 250 cfm (~424.7 m³/h). The purifier features LG’s proprietary Aero Series HEPA H13 filter along with a comprehensive multi-layer 360° filtration system. According to LG, this device is quite effective at minimizing dust, odors, viruses, and various airborne contaminants, ensuring your indoor air stays fresh.
Advanced Sensors for Better Air Quality
Equipped with a built-in Particulate Matter (PM) 1.0 sensor, it can identify ultrafine dust particles as small as 0.01 micrometers and offers real-time updates on air quality. Additionally, it contains sensors that track indoor temperature and humidity, automatically adjusting its purification settings to keep your living space comfortable.
Five Purification Modes for Every Need
The AeroHit includes five different modes for air purification: auto, low, medium, high, and turbo. It’s also designed to be very quiet, operating at just 25 dB when in sleep mode. An LED display shows real-time updates on air quality and the machine’s status. In terms of size, the device measures 240 x 500 x 240 mm (~9.44 x 19.6 x 9.44 inches) and has a weight of 4.2 kg (~9.2 lbs).
For added convenience, you can adjust the settings of the air purifier through LG’s ThinQ app, allowing you to monitor its performance from anywhere at any time. In terms of price, the LG PuriCare AeroHit Air Purifier is priced at 5,920,000 VND (~$234) and is currently available in Vietnam via LG’s official site. While specific launch dates for the US, UK, and Europe remain unannounced, it’s anticipated that LG will expand the availability of the PuriCare AeroHit Air Purifier to these regions shortly.
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Tags: Air Purifier, HEPA H13 filter, LG PuriCare AeroHit