Connect with us

Published

on

With rising global temperatures, the use of electric fans as a cooling method has sparked debate. It was particularly regarding safety limits in high heat. Public health agencies have set differing thresholds: the US Centres for Disease Control and Prevention (CDC) discourages fan use above 32.2°C, while the World Health Organization (WHO) supports using fans up to 40°C in certain conditions. Recent studies, though, offer mixed insights into the role of fans in managing heat stress, especially for older adults and those with heart conditions.

New Studies Examine Fan Benefits in Different Conditions

The new study was published in The New England Journal of Medicine (NEJM). Two new studies by thermal physiologists have added insights but haven’t settled the debate. In one study published in The New England Journal of Medicine, older adults placed in a humid environment at 38-degree Celsius experienced a marked reduction in cardiac stress—31% lower when using fans. Participants who combined fan use with misting saw even greater relief, suggesting that the circulation of moist air aids in lowering heart strain. Ollie Jay, thermal physiologist at the University of Sydney, led the research, concluding that fans may provide significant benefits in humid settings.

On the other hand, a study published in JAMA highlighted the limitations of fans in dry heat. This study involved older adults in an environment set at 36°C with moderate humidity, finding minimal changes in core temperature or heart rate, which only dropped by five beats per minute. Robert Meade, a Harvard University researcher, cautioned that fans may not deliver the cooling needed under these dry conditions.

Humidity as a Key Factor in Fan Use Guidance

These studies indicates that humidity significantly influences the effectiveness of fans, with high moisture levels allowing fans to aid in evaporative cooling. In contrast, in dry conditions, fans may worsen heat stress by circulating hot air. This variability has led the WHO to recommend a 40°C threshold, while the CDC maintains a conservative 32.2°C guideline.

This research, conducted in controlled conditions, highlights the need for real-world studies to better inform public health recommendations. The ongoing debate underscores a critical public health issue as heatwaves become more intense and frequent globally.

For the latest tech news and reviews, follow Gadgets 360 on X, Facebook, WhatsApp, Threads and Google News. For the latest videos on gadgets and tech, subscribe to our YouTube channel. If you want to know everything about top influencers, follow our in-house Who’sThat360 on Instagram and YouTube.


Government Issues New Rule for In-Flight Wi-Fi Connectivity on Indian Domestic Airlines



OxygenOS 15 With Revamped UI, New Features Rolls Out Globally for OnePlus 12: What’s New

Continue Reading

Science

NASA’s New Missions Will Map the Sun and the Cosmos

Published

on

By

NASA’s New Missions Will Map the Sun and the Cosmos

Two NASA missions aimed at advancing space research are scheduled for launch aboard a SpaceX Falcon 9 rocket on March 2 from Launch Complex 4E at Vandenberg Space Force Base in California. The spacecraft, PUNCH and SPHEREx, have been designed for separate but complementary scientific objectives. While PUNCH will focus on the dynamics of the Sun’s corona and solar wind, SPHEREx will survey the broader universe using infrared observations. This dual launch, facilitated under NASA’s Launch Services Program, is expected to enhance understanding of cosmic evolution and space weather phenomena.

PUNCH to Study Solar Wind and Space Weather

As reported by Space.com, according to NASA, the Polarimeter to Unify the Corona and Heliosphere (PUNCH) mission consists of four small satellites designed to create three-dimensional images of the Sun’s outer atmosphere. These satellites will use polarized light to track solar events such as coronal mass ejections (CMEs), helping scientists determine their trajectories and potential impacts on Earth. Speaking to Space.com, Nicholeen Viall, PUNCH mission scientist at NASA’s Goddard Space Flight Center, stated that the mission is expected to provide significantly improved resolution compared to previous heliophysics missions like STEREO.

SPHEREx to Map the Universe in Infrared

As per NASA, the Spectro-Photometer for the History of the Universe, Epoch of Reionisation, and Ices Explorer (SPHEREx) will conduct an extensive infrared survey of the entire sky every six months. Unlike the James Webb Space Telescope, which captures highly detailed images of specific regions, SPHEREx is designed to generate broad cosmic maps in 102 wavelengths. In a statement to Space.com, Phil Korngut, SPHEREx instrument scientist at the California Institute of Technology, noted that the data will contribute to research on cosmic inflation, galaxy formation, and the origins of water in planetary systems.

Both missions are expected to play a crucial role in expanding current knowledge of space phenomena, with their launch anticipated to provide valuable insights into both solar and cosmic environments.

For details of the latest launches and news from Samsung, Xiaomi, Realme, OnePlus, Oppo and other companies at the Mobile World Congress in Barcelona, visit our MWC 2025 hub.

Continue Reading

Science

SpaceX Falcon 9 Launches Athena Lander, NASA’s Lunar Trailblazer to Moon

Published

on

By

SpaceX Falcon 9 Launches Athena Lander, NASA's Lunar Trailblazer to Moon

A SpaceX Falcon 9 rocket lifted off from Kennedy Space Center on February 26, 2025, carrying the Athena lunar lander and NASA’s Lunar Trailblazer orbiter. The launch, which took place at 7:16 p.m. EST from Launch Complex-39A, marked a significant step in lunar exploration. Athena, developed by Intuitive Machines, is designed to investigate lunar water ice deposits, while Lunar Trailblazer will study similar phenomena from orbit.

Scientific Goals and Technology

As per reports, according to NASA, Athena is equipped with ten scientific instruments, including the Polar Resources Ice Mining Experiment 1 (PRIME-1). The experiment consists of the Regolith Ice Drill for Exploring New Terrain (TRIDENT) and the Mass Spectrometer observing lunar operations (MSolo), both of which will work to extract and analyse samples from beneath the lunar surface. These investigations aim to provide critical data on the presence of water ice, supporting future in-situ resource utilisation (ISRU) efforts.

Lunar Trailblazer, an orbiter developed by NASA, will complement Athena’s findings by mapping water ice deposits across the lunar surface. Scientists have stated that its data will enhance the understanding of lunar ice distribution, particularly in the Mons Mouton region, where Athena is expected to land.

Landing Plans and Exploration Vehicles

Reports indicate that Athena will reach lunar orbit in four to five days and attempt a landing between 1.5 and three days after that. The mission will last approximately ten Earth days. To extend its exploration capabilities, Athena carries two secondary vehicles: MAPP, a rover designed by Lunar Outpost, and Grace, a hopping robot developed by Intuitive Machines. Grace will explore shadowed craters inaccessible to wheeled vehicles, while MAPP will establish a lunar cellular network using the Lunar Surface Communications System (LSCS) developed by Nokia Bell Labs.

Challenges and Expectations

This mission follows Intuitive Machines’ IM-1 mission, which achieved the first soft lunar landing by a private company but encountered a landing issue that affected data transmission. Trent Martin, Senior Vice President of Space Systems at Intuitive Machines, stated to Space.com that improved landing accuracy is a primary focus for IM-2.

NASA’s contract for IM-2 was initially valued at $47 million but increased to $62.5 million due to additional requirements, including temperature data collection. Reports suggest that Athena and Lunar Trailblazer are part of a broader lunar exploration effort, joining missions such as Firefly Aerospace’s Ghost Riders in the Sky and ispace’s Resilience lander, both launched earlier in 2025.

For details of the latest launches and news from Samsung, Xiaomi, Realme, OnePlus, Oppo and other companies at the Mobile World Congress in Barcelona, visit our MWC 2025 hub.

Continue Reading

Science

Scientists Find a New Way To Turn Stale Bread Into Carbon Electrodes

Published

on

By

Scientists Find a New Way To Turn Stale Bread Into Carbon Electrodes

A team of engineers has introduced two innovative techniques for shaping carbon electrodes derived from bread. The methods, which build upon previous research, enable the formation of electrodes in precise and sturdy forms. These advancements could enhance the sustainability of electrode production by utilising stale bread, a commonly wasted food item. The process involves heating bread at high temperatures in an oxygen-free environment, converting it into a carbon-based material suitable for applications such as desalination systems. The research aims to refine this process for potential large-scale production, offering an eco-friendly alternative for carbon electrode manufacturing.

New Techniques for Molding Carbon Electrodes

According to the study published in Royal Society Open Science, the research was conducted by David Bujdos, Zachary Kuzel and Adam Wood from Saint Vincent College and the University of Pittsburgh. The team built upon earlier efforts by Adam Wood, who had previously demonstrated that stale bread could be used to produce carbon electrodes due to its high carbon content.

The latest development introduces two techniques that allow for shaping the electrodes into desired forms. The first method involves compressing bread using a 3D-printed mold before subjecting it to the heating process. This technique enables the formation of precise electrode shapes. In a test, a zigzag mold was used to demonstrate its effectiveness.

The second method requires blending bread with water before shaping it manually. Once formed, the material is dried and carbonised in an oven. While this approach provides less precision, the resulting electrodes are reportedly more durable.

Potential for Sustainable Electrode Production

As per reports, the researchers believe these methods could contribute to the development of a low-cost capacitive desalination system. The aim is to create an environmentally friendly solution that reduces food waste while addressing water purification challenges. Efforts are underway to refine the process and explore possibilities for large-scale implementation.

For details of the latest launches and news from Samsung, Xiaomi, Realme, OnePlus, Oppo and other companies at the Mobile World Congress in Barcelona, visit our MWC 2025 hub.


People in Modern Societies Sleep More but Have Irregular Sleep Cycles



Microsoft Copilot App for macOS Released; iPhone and iPad Apps Get Updates

Continue Reading

Trending