Author: mehedihasan9992

Easter Island’s giant moai statues could “walk” with only three things in place: a small group of people, long ropes and the use of pendulum dynamics, a new study finds.Researchers have long debated how the Indigenous people of Easter Island, also known as Rapa Nui, moved their huge human-faced moai statues — which can weigh dozens of tons, on average — centuries ago. Now, a new study finds that physics was on their side.Anthropologists made the discovery after realizing that incomplete moai statues that had been discarded shortly after being quarried were missing certain details. They noticed that before being…

A sprawling Amazon Web Services cloud outage that began early Monday morning illustrated the fragile interdependencies of the internet as major communication, financial, health care, education, and government platforms around the world suffered disruptions. As the day wore on, AWS diagnosed and began working to correct the issue, which stemmed from the company’s critical US-EAST-1 region based in northern Virginia. But the cascade of impacts took time to fully resolve.Researchers reflecting on the incident particularly highlighted the length of the outage, which started around 3 am ET on Monday, October 20. AWS said in status updates that by 6:01 pm…

A newly discovered way to monitor magma movements beneath Mount Etna could help scientists forecast when it might erupt.Mount Etna, located on the Italian island of Sicily, is Europe’s largest active volcano. Humans have documented its activity for the past 2,700 years, but the volcano’s eruptive history stretches as far back as 500,000 years.Etna’s most recent eruption, in June 2025, ejected a giant, 4-mile-high (6.5 kilometers) cloud of ash and triggered an avalanche of hot lava blocks and other debris. The eruption was expected, so officials were able to issue warnings on the morning of the event, but predictions don’t…

It’s hard to remember now that people used to be skeptical about electric bikes. Cyclists didn’t want unlicensed motor vehicles in bike lanes; people who didn’t bike found them to be dangerous. Even as more people adopt them to deal with carbon emissions or traffic, ebikes still have many issues. Cheap ones are impossible to repair. The nice ones have gut-punch prices, especially if this is your second or third vehicle. They have a learning curve when it comes to riding.I’ve been reviewing electric bikes for years and, as many reviewers do, tend to evaluate them as an assemblage of…

A lab accident has led engineers to build a chip that fires a rainbow of powerful laser beams — and it could help data centers better manage skyrocketing volumes of artificial intelligence (AI) data.The new photonics chip contains an industrial-grade laser source paired with a precisely engineered optical circuit that shapes and stabilizes the light before splitting it into multiple, evenly spaced colors.Because each color band represents an optical frequency that can carry its own unique stream of data, the technology could enable data centers to move information around far faster and more efficiently than existing optical networks such as…

From dietary supplements to cleaning advice, we’ll teach you how to live in harmony with cats (and dogs!), even if you’re allergic. Source link

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…

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…

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…

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…