Author: mehedihasan9992

On the night of April 19, 1787, astronomer William Herschel noted an hours-long light as bright as the Orion Nebula emanating from the unlit, new moon. He had likely witnessed a “transient lunar phenomenon” (TLP) — a short-term change in the appearance of part of the lunar surface.TLPs include brightening, reddish or violet blotches and foggy spots. In fact, some 3,000 TLPs have been documented over the past two millennia by people wielding telescopes, cameras or just plain good vision, said Anthony Cook, a research lecturer in physics at Aberystwyth University in the U.K.But what causes these strange flashes on…

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Everything stored in your Keeper vault is known as a record. There are several different record types, including logins, credit cards, identities, secure notes, and software licenses, but you can also create a general record with any fields you want, as well as add custom fields and attach files to other record types. Rather than tags or categories, Keeper lets you make folders, and you nest folders within each other.You can share at a record or folder level. Record sharing speaks for itself, but folder sharing is interesting. Rather than sharing a full vault, as you have to do with…

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Missed Prime Day? Not to worry. The main event may have come to an end, but you can still save big on fitness gear and exercise equipment, and not just at Amazon, but also at Best Buy, Walmart and other major retailers. We have spotted some truly massive late-minute deals on treadmills, rowing machines, fitness trackers and running headphones, so snatch them up while they are still live.You can trust us here — we have tried and tested most of the fitness products listed here, and we are keeping an eye on price drops to bring you only the biggest…

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Decreased suction power can be harder to notice if you aren’t looking carefully. I certainly hadn’t realized how weak my old vacuum had become until I started using a new one. Frequent clogs might be a sign of age, but they can also be a sign that you need to do a better job cleaning your vacuum and making sure the tubes are clear before you start your next cleaning session.Courtesy of Bissell; NarwalA Vacuum’s LifetimeSo, how long does a vacuum last? Eufy, which makes vacuums and other smart home goods, says a vacuum lasts on average between five and…

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QUICK FACTSName: Roos Carr figuresWhat it is: A set of figurines carved from yew wood and quartziteWhere it is from: Roos Carr, East Yorkshire, U.K.When it was made: Circa 600 to 500 B.C.This set of carved figurines was discovered in the parish of Roos, on England’s east coast. The carvings, which have been carbon-dated to the Late Bronze Age, may have been offered to the god Odin.When laborers were digging a drainage ditch in 1836, they discovered a set of eight human figures, two miniature boats and an assortment of arms and tiny weapons underneath a layer of blue clay.…

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This is arguably personal taste. Certainly if you’re looking to stop eyeballs mid-scroll with oversaturated, eye-popping color, the Insta360 X5 is your friend. Personally though, I like the color coming from the GoPro much better, even when shooting in 8-bit color. It’s probably worth checking out some video from both to see which look you prefer before you invest. One advantage of the GoPro is that if you do want to get into postproduction coloring in apps like DaVinci Resolve, the 10-bit color option gives you a lot more latitude.I also found that, in bright light, shooting the sort of…

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The eerie casts of the victims of the A.D. 79 eruption of Mount Vesuvius paint a desolate picture of the destruction the volcano wrought on ancient cities near modern Naples. Pompeii became a 2,000-year-old time capsule when the city was frozen underneath layers of pumice, ash and pyroclastic flows.Over the span of two centuries, archaeologists have uncovered Pompeii and its neighbor Herculaneum bit by bit, identifying quotidian remains of Roman art, architecture and food. But less attention has been paid to the things missing from the cities — and the people who carried them as they escaped the obliterating force…

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After months of deployments by US Immigration and Customs Enforcement and the National Guard across American cities, federal agents have been preparing to descend into San Francisco.Local resistance groups have been coordinating with activists in other cities across the country that have been besieged by federal law enforcement. Thousands of volunteers, coordinating through Signal group chats, Zoom calls, and social media posts, planned protests and spread the word that federal troops are on their way to San Francisco. Even though they aren’t—yet.On Thursday morning, SF mayor Daniel Lurie posted on Instagram and X to announce that he had spoken with…

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Around 2,000 years ago, the eruption of Mount Vesuvius obliterated Pompeii and Herculaneum, entombing the two cities and victims within a scorching mix of molten rock, pumice, ash and gas. With the Roman cities frozen in time, archaeologists know a huge deal about the lives of those who perished — but what about the survivors?In this excerpt from “Escape from Pompeii: The Great Eruption of Mount Vesuvius and Its Survivors” (Oxford University Press, 2025), author Steven L. Tuck, history professor at Miami University in Ohio, examines the historical and archaeological evidence of the people who escaped the destruction of Pompeii…

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