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Researchers have developed a teeth-whitening powder that works with the vibrations of an electric toothbrush to safely remove stains. Unlike traditional whiteners, it not only brightens teeth but also repairs enamel and supports healthy oral bacteria. Lab tests showed dramatic whitening effects, while animal studies revealed reduced harmful microbes and inflammation. This could pave the way for a new generation of at-home dental care.
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ScienceDaily
An East Bay apartment complex has been bought at a price that's well below its prior value. Read more ›
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A PG&E Corp. unit has bought a San Jose building in a move to bolster the utility's South Bay operations. Read more ›
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После трёх частей разбора деградации остаётся один вопрос: как написать NestJS-проект так, чтобы god-сервис и циклические зависимости были невозможны. «Писать аккуратнее», «лучше ревьюить», «выделять день в спринте на рефакторинг» — варианты, которые не работают: дисциплина не масштабируется на пятьдесят спринтов и пять команд. Работает другое — наложить на модуль структурные ограничения, которые TypeScript и NestJS DI просто не дадут нарушить. Слои, однонаправленные зависимости, изоляция домена от инфрастр Read more ›
0 newcommer
I can carry this with one hand, and I have encountered no electronics that it can't power. Read more ›
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The AI boom is creating new hurdles for junior recruits. We asked career gurus for their best advice on starting out strong in the workplace. Read more ›
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SpaceX achieved most of the goals it set out for Starship V3's first test flight. Read more ›
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Промокшие кеды с нашивками «JD» торопливо хлюпали по лужам и обдумывали свой первый день в корпорации «Святые Технологии». Работа мечты и бесконечных возможностей! Небоскребы из стекла и металла, огромные пространства, в кабинетах которых творят будущее легенды отрасли. Дойдя до двери с надписью: «Малый Ад. Архив», они остановились в нерешительности: всё складывалось слишком удачно. Сосед по кабинету пробил им проходку на ежегодный прокрастинейт-шабаш, куда официально новичков не пускают.Дождь усиливался. П Read more ›
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Skipping breakfast is linked to health problems including obesity, poor gut health, anxiety, and depression. Read more ›
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Вход в кибербезопасность почти всегда начинается с одной и той же проблемы: непонятно, с чего именно начинать. Теория без практики быстро забывается, а реальные инструменты и уязвимости выглядят пугающе сложными. На этом фоне CTF-платформы (Capture The Flag) стали стандартной точкой входа. Однако большинство из них плохо подходят для новичков: задачи либо слишком абстрактные, либо требуют уже сформированной базы. Именно здесь появляется picoCTF — образовательная платформа, разработанная при участии Carnegie Read more ›
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A retro PC enthusiast has modified the VBIOS of a vintage graphics card to embed a version of Snake – the game everyone used to play on their dumb phones. Read more ›
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Businesses want refunds on Donald Trump's tariffs. Lost passwords and misclassified customs entries are holding them up. Read more ›
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Циклическая зависимость между двумя модулями в NestJS лечится двумя строчками forwardRef. Документация прямо это рекомендует, ревьюер пропустит за тридцать секунд, билд снова собирается. Через полгода окажется, что эти две строчки имеют ROI –35 000% за первый год и –360 000% к десятому: $30–60k в год сжигается в маленькой команде, $6–15M — в big tech, без единой написанной фичи. Счёт приходит размазанным платежом по будущим спринтам — и винить уже некого:... Read more ›
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In a first for the firm, Claire Zau will help shape Lightspeed's media strategy alongside seed investing. Read more ›
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A senior product manager living north of Seattle in a single-income household said his almost $300,000 salary isn't enough for his family of four. Read more ›
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A BNY executive says her AI double helped her deliver a funny impromptu speech at a networking dinner. Read more ›
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Old plastic gadgets were chunky, strange, and sometimes ugly, but they had a tactile clarity modern tech keeps sanding away. Read more ›
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Two software engineers created an inbox cleaning app, leveraging AI for development. They sold while keeping their tech jobs. Read more ›
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To find the best Kindle for your library, Mashable tested and reviewed Amazon's latest e-readers. Compare the Kindle, Kindle Kids, Paperwhite, Colorsoft, and Scribe. Read more ›
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Megan Roup founded The Sculpt Society in 2017 after years of teaching classes at boutique fitness studios and dancing for the Brooklyn Nets. Read more ›
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ScienceDaily
A stunning fossil discovery in Ethiopia shows that early Homo and a previously unknown Australopithecus species lived together around 2.6 to 2.8 million years ago. The find overturns the classic “ape-to-human” progression and paints human evolution as a crowded, branching tree with multiple species coexisting. Scientists dated the fossils using volcanic ash deposits and are now investigating what these ancient relatives ate and whether they competed for resources. Read more ›
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A major analysis of brain scans found that people with anxiety disorders have noticeably lower levels of choline, a nutrient crucial for healthy brain function. The strongest evidence appeared in the prefrontal cortex, the region tied to emotional control and decision-making. Researchers say the discovery is the first clear chemical brain pattern linked to anxiety and could eventually lead to new nutrition-based treatments. Read more ›
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Astronomers have revealed the sharpest image ever captured of a filament in the cosmic web — the enormous hidden structure connecting galaxies across the Universe. The glowing strand stretches 3 million light-years and links two galaxies from nearly 12 billion years ago. By observing this faint intergalactic gas directly for the first time in such detail, scientists gained new insight into how galaxies are fueled and formed. Read more ›
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Researchers have shown for the first time that malfunctioning mitochondria — the cell’s energy generators — may directly cause cognitive decline in neurodegenerative diseases. By creating a new tool that temporarily boosts mitochondrial activity in the brain, scientists restored memory performance in mouse models of dementia. The discovery hints that energy failure inside neurons could happen before brain cells die, potentially offering a new target for future Alzheimer’s treatments. Read more ›
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Exercise may be training your brain just as much as your body. Researchers discovered that certain brain cells stay highly active even after a workout ends, and those lingering signals appear to help the body build endurance over time. In experiments with mice, blocking these brain cells prevented improvements in stamina, even when the animals still exercised normally. Read more ›
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Rivers around the world are quietly running out of oxygen — and climate change is emerging as the main culprit. A sweeping global analysis of more than 21,000 river systems found that nearly 80% have been steadily losing dissolved oxygen over the past four decades, threatening fish, biodiversity, and the overall health of freshwater ecosystems. Surprisingly, tropical rivers are being hit the hardest, even more than rivers in rapidly warming... Read more ›
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Scientists have uncovered a surprising new trick used by one of cancer’s most notorious proteins. MYC, already infamous for fueling runaway tumor growth, also appears to help cancer cells survive by repairing their damaged DNA — including damage caused by chemotherapy and radiation. Researchers found that MYC can rush directly to broken DNA and recruit repair machinery, effectively helping tumors recover from treatments meant to destroy them. Read more ›
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For years, “yo-yo dieting” has been blamed for wrecking metabolism and causing lasting damage, but a major new review says the fear may be wildly overblown. After analyzing decades of studies in humans and animals, researchers found little convincing evidence that losing weight and regaining it actually causes long-term harm. While regaining weight can erase some health improvements, it doesn’t appear to make people worse off than before. Read more ›
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A long-lost manuscript discovered in Rome has revealed one of the oldest surviving versions of the very first known poem written in English. Hidden for decades and once believed lost, the 1,200-year-old manuscript contains Caedmon’s Hymn — a nine-line Old English poem said to have been miraculously composed by a shy Northumbrian cowherd after a divine dream. Read more ›
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A spectacular dinosaur discovery in Spain is giving scientists a rare new look inside the world of stegosaurs. Paleontologists uncovered the best-preserved stegosaur skull ever found in Europe, belonging to the iconic plated dinosaur Dacentrurus armatus, which roamed Earth around 150 million years ago. Because stegosaur skulls are extremely fragile and almost never survive intact, the fossil is helping researchers uncover previously unknown details about how these armored giants evolved. Read more ›
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23.05.2026 06:05
Last update: 06:01 EDT.
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