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Gasoline, a product of ancient algae and plankton, has a surprisingly short shelf life, expiring in as little as four weeks when left in a vehicle's tank. Properly stored in jerry cans, it can last three to six months, while fuel stabilizers may extend its usability to one to three years. The degradation of gasoline is influenced by its composition, particularly the presence of ethanol, which can absorb water and lead to engine corrosion, and olefins, which can oxidize and form a gum-like substance that clogs fuel lines. Additionally, volatile components can evaporate over time, especially if gasoline is stored improperly. If faced with expired fuel, experts recommend draining the tank or topping it up with fresh gasoline. To maximize shelf life, gasoline should be stored in full, airtight containers in cool, low-humidity environments, as it is highly volatile and requires careful handling. 
Published: Aug 31 2025, 9 pmeznews.inScientists at Albert Einstein College of Medicine have uncovered potential reasons why some lifelong smokers evade lung cancer, despite the well-documented risks associated with tobacco use. While smoking is linked to a significant increase in lung cancer cases, only 10 to 20 percent of smokers develop the disease. The researchers suggest that certain individuals may possess a robust mechanism that limits DNA mutations in lung cells, potentially due to enhanced DNA repair or detoxification processes. Their study, published in *Nature Genetics*, revealed that while smokers generally have more mutations in their lung cells, this increase plateaued after 23 pack years of smoking. The findings, derived from advanced genetic analysis of lung cells from both smokers and non-smokers, could pave the way for new methods to assess lung cancer risk and improve early detection strategies, moving towards prevention rather than late-stage treatment.
Published: Sep 03 2025, 12 pmeznews.inIn the competitive world of reproduction, sperm must navigate a challenging race to fertilize an egg, often facing rivals from the same mating event. Surprisingly, the fruit fly _Drosophila bifurca_ boasts the longest sperm in the animal kingdom, measuring 6.35 centimeters—about 20 times its body length—thanks to tightly packed testes that constitute 10% of its mass. This adaptation allows the sperm to displace competitors effectively. In contrast, mouse sperm, while longer than that of elephants, measures around 124 micrometers, reflecting a balance between size and quantity, as mice produce approximately 9.5 million sperm per ejaculation. Elephants, despite their size, have shorter sperm at 56 micrometers but compensate with staggering quantities, releasing up to 200 billion sperm. This highlights a fascinating evolutionary strategy: while size varies, the success of sperm relies on a combination of length, quantity, and competitive advantage in the reproductive arena.
Published: Sep 02 2025, 8 pmeznews.inIn a groundbreaking study published in *Neuropsychologia*, researchers have documented the first known case of synesthesia in a congenitally blind individual. The 40-year-old man experiences tactile sensations associated with numbers, letters, and days of the week, with specific textures linked to each, such as velvet for the number three and plastic for April. To validate his condition, researchers conducted experiments where he consistently matched textures to these concepts with 75% accuracy, significantly outperforming non-synesthetes, who only matched 7% of the time. This discovery challenges previous assumptions that synesthesia requires visual input, suggesting that sensory crosstalk can occur without sight. Cognitive neuroscientist Clare Press noted that while vision often dominates perception, this case indicates that other sensory modalities can also facilitate synesthetic experiences, potentially aiding memory recall for blind individuals.
Published: Sep 02 2025, 10 pmeznews.inThe short-faced bear, known scientifically as _Arctodus simus_, was the largest mammalian carnivore to ever inhabit North America, towering over 3.3 meters (11 feet) tall on its hind legs. This formidable predator roamed the Earth during the Pleistocene, approximately 2 million years ago, and could weigh up to 1,000 kilograms (2,204 pounds). Unlike modern bears, the short-faced bear had straight-forward pointing toes, enabling it to run at speeds exceeding 60 kilometers per hour (40 miles per hour). While often considered a carnivore, it likely had an omnivorous diet, scavenging and consuming a variety of foods. The species went extinct around 11,000 years ago, coinciding with the decline of other large mammals and the arrival of humans in North America, although the exact causes of its extinction remain unclear. Its only living relative today is the spectacled bear, primarily found in South America.
Published: Sep 03 2025, 7 ameznews.inThe largest egg ever laid comes not from the ostrich, but from the now-extinct elephant bird, specifically the species _Aepyornis maximus_, which roamed Madagascar around 1,000 years ago. Weighing approximately 3 kilograms (6.6 pounds) and measuring about 150 times larger than a typical chicken egg, these colossal eggs surpass the ostrich's record of 2.589 kilograms (5.7 pounds). The elephant bird, which could weigh up to 1,000 kilograms (2,200 pounds), holds the title for the largest egg of any known animal. In a fascinating twist, scientists recently discovered a giant egg in Antarctica, believed to belong to a marine reptile, which challenges previous assumptions about egg-laying in such creatures. Additionally, the oviraptorosaur _Beibeilong sinensis_ laid eggs four times the size of an ostrich egg, further highlighting the diversity of egg sizes in the animal kingdom.
Published: Sep 03 2025, 8 ameznews.inA recent study published in the Journal of Environmental Psychology reveals that many American children aged 4 to 7 have misconceptions about food origins, with a notable percentage believing that hotdogs, hamburgers, and bacon come from plants. The research, which surveyed 176 children, found that 47% thought French fries were animal products, while 44% misidentified cheese as plant-based. Alarmingly, 41% believed bacon originated from plants, and 38% thought chicken nuggets did as well. The study highlights a broader confusion about edible sources, with many children considering cows, pigs, and chickens inedible. Researchers suggest that this naivety presents an opportunity to promote plant-based diets among children, as they may unknowingly consume meat despite a bias against it. The team advocates for greater transparency from parents regarding food origins, which could encourage healthier eating habits and align with children's moral views on animal welfare and environmental sustainability.
Published: Sep 03 2025, 6 ameznews.inFor nearly 800 years, the Shroud of Turin has been at the center of a contentious debate regarding its authenticity as the burial cloth of Jesus Christ. A recent study suggests that the markings on the shroud do not align with the contours of a human body, indicating it may be a medieval artwork rather than a genuine relic. First presented in 1354, the shroud gained holy status after being linked to Jesus, but scientific investigations over the past four decades have raised significant doubts about its provenance. Notably, a 1980s radiocarbon dating study dated the fabric to between 1260 and 1390 CE, while a 2018 blood-splatter analysis deemed the stains "unrealistic." Although a 2022 study proposed an earlier date of 55 to 74 CE, its methodology remains controversial. The latest research, utilizing 3D simulations, further supports the theory of the shroud's artistic origins, adding to the skepticism surrounding its authenticity.
Published: Sep 02 2025, 11 pmeznews.inSkywatchers are gearing up for a spectacular Blood Moon event, set to occur during the evening of September 7-8, depending on your timezone. This total lunar eclipse will see the Moon transition from a darkened state to a striking crimson hue as it passes through the Earth's shadow. The entire spectacle will last 3 hours, 29 minutes, and 24 seconds, with visibility extending to most of Asia, parts of East Africa, and Western Australia, while other regions, including much of Europe and the east coast of Brazil, will witness at least a partial eclipse. Remarkably, up to 60% of the global population—around 7 billion people—could view the full eclipse, weather permitting. This event is particularly notable as it follows a March eclipse that was primarily visible in the Americas, making this a rare opportunity for many worldwide to experience the celestial phenomenon.
Published: Aug 30 2025, 12 ameznews.inA groundbreaking study has revealed that not all organs age at the same rate, with significant implications for understanding human aging. Researchers created a "proteomic blueprint" that maps how protein levels in various organs change over a 50-year span, identifying that aging accelerates notably after the age of 50. The aorta was found to age faster than other organs, exhibiting pronounced protein fluctuations as early as age 30, which may trigger systemic aging. Professor Guang-Hui Liu, a lead author from the University of Chinese Academy of Sciences, noted that the aorta acts as an early sensor of aging, broadcasting proteins that could influence the aging process in other organs. This study reframes aging research by highlighting the communication between organs through blood-borne factors, suggesting that targeting these aging proteins could help mitigate chronic disease risks and slow overall decline. The findings are published in the journal *Cell*.
Published: Sep 03 2025, 3 ameznews.inMany individuals experience increased bowel movements, often referred to as "period poops," during their menstrual cycle, a phenomenon that is more common than discussed. Gynecologist Dr. Jennifer Gunter highlighted that this is primarily due to the release of prostaglandins, which not only cause menstrual cramps but also stimulate contractions in the intestines. Science communicator Anna Rothschild explained that while high levels of prostaglandins can lead to more frequent bowel movements, the drop in progesterone during menstruation can also contribute to looser stools. This combination can result in increased bowel activity, particularly at the onset of a period. Not everyone is affected, and those with painful cramps are more likely to experience this symptom. Additionally, dietary changes and increased caloric intake before menstruation may also play a role, while ibuprofen can help alleviate symptoms by reducing prostaglandin levels.
Published: Sep 03 2025, 4 amFor the fastest, latest, not so wokest news, 'experts say' you need to visit Eznews
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