FOR MANY FOLKS, SNOW SEASON IS RIGHT AROUND the corner. Retailers, from big home centers to local hardware stores, are already stocking up on winter essentials. If you wait until the flakes are falling to go snow-shovel shopping, you could be at the mercy of what's available.
There are traditional short-handled models with flat blades, long-handled models with wide blades designed to push snow, and ergonomic models with oddly bent handles. For this test, we focused on versatile ergonomic models, with both shoveling and pushing capabilities.
HOW WE TESTED
Because we test shovels before the cold weather arrives, we use wet sawdust as a proxy for snow. Wet snow weighs, on average, about 20 pounds per square foot, so we spray down our pile of sawdust, mix it well, check the weight of a cubic foot, and repeat until we hit 20. Then we spread the sawdust out in a 6-by-8-foot area, 5.5 inches deep, for a total of 22 cubic feet of "snow."
We use each shovel to clear the test area and clock how long it takes us, working at a steady, consistent pace. Additionally, we scoop up as much sawdust as each shovel blade will hold, to measure how much weight it feels like compared to how much the sawdust actually weighs. Finally, we assess comfort-in regard to position of the back, arms, and hands of the person doing the shoveling and ease of use.
SHOVELING VS. PUSHING
Denne historien er fra November - December 2022-utgaven av Popular Mechanics US.
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Denne historien er fra November - December 2022-utgaven av Popular Mechanics US.
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Henrietta Lacks - It's not surprising that Henrietta Lacks-whose
It's not surprising that Henrietta Lacks-whose "immortal" HeLa cells were pivotal in developing treatments for diseases such as polio, HIV/AIDS, and COVID19-is referred to as "the mother of modern medicine." But Lacks's legacy is complicated due to the ethical concerns surrounding the use of her special cells. Lacks, who died of cancer at age 31 in 1951, was never aware that her cells led to significant medical advancements or that they had been taken without her consent. And even now, her strange case raises questions about the morally dubious methods through which we achieved unquestionably positive breakthroughs in medicine.
Chasing an Asteroid - How NASA defied incredible odds to get its asteroid-hunting osiris-rex mission off the ground and in the process upended what we know about our solar system.
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Whether We Live in a Simulation - scientist Melvin Vopson, PhD, studies this exact thing- the possibility that the universe might indeed be a digital facsimile. And he claims to have evidence.
In the 1999 film the Matrix, Neo discovers A truth to end all truths-the universe is a simulation. While this premise provides fantastic sci-fi fodder, the idea isn't quite as relegated to the fiction section as one might expect. . In fact, University of Portsmouth scientist Melvin Vopson, PhD, studies this exact thing- the possibility that the universe might indeed be a digital facsimile. And he claims to have evidence.
The Ancient Language of Easter Island - Today, humans inhabit- or have, at the very least, explored- pretty much every corner of the planet. But that immense proliferation of Homo sapiens across the globe was a slow process.
With the first humans leaving Africa between 60,000 and 120,000 years ago, the species slowly spread across the Earth over many millennia. And one of the last places these ancient humans made their way to was the southeastern Pacific island of Rapa Nui, known more broadly as Easter Island.Located 2,360 miles off the coast of Chile, Rapa Nui is one of the most isolated places in the world. Its native people, who are also named the Rapa Nui, first arrived on the island's shores between A.D. 1150 and 1280, and lived in isolation until the arrival of Dutch navigator Jacob Roggeveen in 1722.
Underwater UFOs - A retired U.S. Navy admiral believes that the government should look to the oceans to help solve a mystery in the skies.
A retired U.S. Navy admiral believes that the government should look to the oceans to help solve a mystery in the skies. Rear Admiral Timothy Gallaudet, former Oceanographer of the U.S. Navy, recently published a paper arguing that unidentified anomalous phenomena (UAP, more commonly referred to as UFO) and unidentified submersible objects (USO) are linked, and should be studied further.
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Upgrade Your Living Room With This DIY - MID-CENTURY COFFEE TABLE
This project is easy to build and customize to fit your space.
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