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This week in science news, significant developments include the retraction of a controversial 2020 study that claimed hydroxychloroquine could treat COVID-19, following widespread criticism. Meanwhile, the World Magnetic Model 2025 has been released, marking a new position for Earth's magnetic north pole, which is expected to drift towards Russia by 2029. In a remarkable conservation effort, Charlotte, a green sea turtle suffering from "bubble butt" syndrome, received a custom 3D-printed harness to aid her mobility. Additionally, a catastrophic die-off of up to four million murres in Alaska has been linked to "The Blob," a mass of warm water in the North Pacific, marking the largest single-species mortality event in modern history. Lastly, scientists propose using an ancient Roman technique to create concrete from human blood for potential Martian habitats, while writer Ben Taub experiments with ancient hangover cures. 
Published: Dec 22 2024, 3 pm ISTeznews.inA new consensus statement published in the *Annals of the New York Academy of Sciences* marks a significant step in the scientific study of death, addressing the complexities surrounding near-death experiences (NDEs). Researchers from various disciplines highlight that modern medicine has transformed our understanding of death, revealing it as a process rather than an absolute state. Lead author Sam Parnia, director of Critical Care and Resuscitation Research at NYU, emphasizes that physiological and cognitive functions may persist beyond the traditional markers of death. While NDEs often feature common themes—such as feelings of detachment, life review, and a sense of returning home—scientific studies have yet to definitively prove or disprove their reality. The paper aims to provide insights into the mechanisms and ethical considerations of death research, paving the way for future investigations into consciousness and the human experience at the end of life.
Published: Dec 22 2024, 1 pm ISTeznews.inEarth's magnetic north pole is on the move, drifting eastward at an accelerating rate due to the dynamics of molten metal in the planet's outer core. Since the 1830s, it has shifted approximately 2,250 kilometers from Canada towards Siberia, with its movement increasing from under 15 kilometers per year to around 50 to 60 kilometers annually between 1990 and 2005. If this trend continues, the pole could advance an additional 660 kilometers towards Siberia in the next decade, potentially causing compasses to point east of true north by 2040. Meanwhile, the south magnetic pole is also shifting eastward over Antarctica. While such changes are significant, they are part of a natural cycle, with complete pole reversals occurring roughly every 300,000 years. Scientists are monitoring these shifts closely, as they may affect GPS and satellite navigation systems, although daily life will remain largely unaffected.
Published: Dec 22 2024, 11 am ISTeznews.inA recent study published in BJU International has revealed a significant increase in the depiction of penis size in art over the past seven centuries, particularly from the 19th century onwards. Researchers analyzed 232 paintings of nude males, measuring the penis-to-ear and penis-to-nose ratios to assess changes in perceived ideal size. They found that while penis sizes were relatively small in the 15th and 16th centuries, the average ratio rose dramatically to 1.5761 in the 21st century. The study suggests that the rise in perceived size may be influenced by the internet and pornography, which often portray exaggerated ideals of masculinity and sexual prowess. This shift could contribute to body image issues among men, as many tend to overestimate average sizes and seek potentially harmful enhancements. The researchers acknowledge limitations in their study, including a European bias in the selected artworks.
Published: Dec 21 2024, 2 pm ISTeznews.inThe notion that elephants are afraid of mice, popularized by folklore and films like Disney's *Dumbo*, is more myth than reality, according to experts. While Pliny the Elder claimed elephants could not tolerate rodents, the Global Sanctuary for Elephants suggests that the fear likely stems from the animals' unique vision. Elephants have their eyes positioned on the sides of their heads, creating blind spots directly in front and behind them. This means a small creature could startle them if it suddenly appears at their feet. Researcher Josh Plotnik notes that elephants can be spooked by any unexpected movement nearby, not just mice. In the wild, they face threats from various animals, including snakes, which can pose a real danger. Thus, the fear factor is less about the size of the creature and more about the element of surprise in their environment.
Published: Dec 22 2024, 4 am ISTeznews.inSeasonal affective disorder (SAD) is a subtype of major depressive disorder or bipolar disorder, characterized by mood changes that align with seasonal shifts, most commonly occurring in fall and winter. Symptoms, which can vary by individual and season, include persistent low mood, low energy, and changes in sleep and appetite. While the exact cause remains unclear, reduced sunlight exposure is believed to disrupt circadian rhythms and alter serotonin and melatonin levels, contributing to symptoms. Women and those living far from the equator are at higher risk. Treatment options include light therapy, antidepressants, and psychotherapy, though the effectiveness of light therapy is debated. Individuals experiencing SAD are encouraged to seek help from healthcare providers, as early intervention is crucial for recovery. Support resources are available for those in need.
Published: Dec 22 2024, 8 am ISTeznews.inHalf a century after Alan Shepard famously hit two golf balls on the Moon during the Apollo 14 mission in 1971, one of the balls has been located. Shepard, using a makeshift six-iron club attached to a sample-collection tool, managed to hit the first ball just 24 yards and the second 40 yards, contrary to his belief that they traveled "miles and miles." The second ball was discovered by imaging specialist Andy Saunders, who enhanced original Apollo 14 footage. Despite the low gravity, Shepard's achievement is notable given the challenges posed by his bulky spacesuit and helmet. Pro golfer Gary Felton humorously critiqued Shepard's performance, suggesting that even with excuses, the astronaut's shots were subpar. Saunders estimated that a professional golfer could hit a ball on the Moon over 4 kilometers if conditions were ideal, highlighting the unique challenges of golfing in space.
Published: Dec 22 2024, 9 am ISTeznews.inScientists propose that future astronauts on Mars could construct habitats using a technique reminiscent of Ancient Roman concrete, which incorporates organic materials, including human blood. This innovative approach, detailed in a recent study, suggests that blood could enhance the durability of concrete, potentially allowing settlers to utilize resources readily available on Mars. The process, termed "AstroCrete," involves mixing Martian regolith with human serum albumin, a protein found in blood plasma, to create a strong building material. Notably, astronauts could generate enough serum albumin within 72 weeks to construct a habitat for an additional crew member. This method, which requires minimal water and leverages human biological fluids, presents a practical solution for establishing a sustainable presence on the Red Planet. The study highlights the feasibility of using human resources in extraterrestrial construction, paving the way for future Martian habitation.
Published: Dec 19 2024, 2 am ISTeznews.inA recent working paper by Dartmouth University Professor David Blanchflower reveals a significant shift in the traditional U-shaped happiness curve, which previously indicated that individuals are happiest in youth and old age, with a low point in midlife. The study shows that young adults, particularly young women, are now the least happy demographic, with unhappiness declining and happiness increasing with age—a trend that began around 2017. Blanchflower notes that approximately one in nine young women in the U.S. report daily mental health struggles, while one in 14 young men do the same. This decline in youth well-being has been observed in over 80 countries worldwide, raising concerns about the underlying causes, which remain unclear. Blanchflower suggests that the phenomenon may be linked to global factors affecting young people, potentially including the rise of cell phone usage. The paper is currently available on the SSRN server but has not yet undergone peer review.
Published: Dec 21 2024, 9 pm ISTeznews.inThe World Magnetic Model 2025 has been released, marking a significant update on the shifting position of Earth's magnetic north pole, which is now closer to Siberia than Canada. This model, valid until late 2029, is crucial for navigation systems like GPS, as the magnetic north pole has been moving at an accelerated rate, now shifting approximately 50 to 60 kilometers per year. Since the 1830s, the pole has relocated about 2,250 kilometers across the Northern Hemisphere. The update, announced by the NOAA and the British Geological Survey, features improved spatial resolution, enhancing navigation accuracy. Dr. William Brown from BGS noted that the current behavior of the magnetic north is unprecedented, with a recent deceleration in its movement. This timely release comes just before Christmas, raising concerns about potential impacts on holiday deliveries, particularly for Santa Claus.
Published: Dec 19 2024, 12 am IST
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