Everything you know about recycling is probably wrong

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A refresher for the new decade.

The next time you pass a recycling bin, do yourself a favor and take a peek inside. See anything unusual? Let’s rip the Band-Aid off right now: Turns out many of the things we drop into recycling bins don’t go on to beautiful second lives as bespoke greeting cards or shiny new bikes — a large percentage of this stuff actually ends up in landfills.

If you’re just tuning in, some background to our current recycling problem: In 2018, China, which previously bought and processed 70%(!) of the US’s recycled plastics, changed its policies about what kinds of recycled waste it would accept. China banned imports of certain types of paper and plastic, and cracked down on contamination (like leftover food scraps) in the materials they still process and recycle.

As long as we were shipping our recycling overseas, Americans never really had to deal with the repercussions of being, to quote Alana Semuels at The Atlantic, “terrible at recycling.” We tend to just throw everything into the bin without much thought about whether everything is actually, you know, recyclable. Now that US towns and cities are scrambling to figure out how to deal with recyclables, Semuels explains, they have two options: “pay much higher rates to get rid of recycling, or throw it all away.”

Continue reading… “Everything you know about recycling is probably wrong”

Spin launch’s ginormous centrifuge plans to slingshot rockets into space

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One of the greatest obstacles in launching spacecraft off our planet is the tremendous volume and cost of fuel required to achieve escape velocity and break out of Earth’s gravity well into the vacuum of outer space.

Aerospace firms have offered a number of novel solutions to this dilemma, but we’re still stuck with the good old-fashioned method of firing up a rocket engine and blasting ourselves off our spinning rock in a thunderous display.

Hoping to build a better mousetrap, California startup firm SpinLaunch is taking a kinetic energy approach and has lofty plans to construct a football field-sized, vacuum-sealed centrifuge that will accelerate a 25-foot-long rocket to over 5,000 miles per hour, then release it to slingshot into the heavens before its booster engine fires to attain a proper orbital attitude.

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Unique ultrasonic cleaner cleans more efficiently than a washing machine

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A unique ultrasonic cleaner has been created which is more efficient than a washing machine and takes the form of the Sonic Soak. The compact ultrasonic cleaner has been specifically created to offer users with the “ultimate portable cleaner” says its creators, providing state-of-the-art powerful ultrasonic cleaning technology in the palm of your hand.

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Hydrogen-fueled Drones Will Inspect U.S. Gas Pipeline

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Public-safety drone consultancy Skyfire Consulting has announced a partnership with UAV company Doosan Mobility Innovation and hydrogen-fuel service provider ReadyH2 to tackle a pipeline-inspection project for an unnamed American company.

Doosan will deploy a hydrogen-powered octocopter. The drone sports a hydrogen-powered generator fueling two hours of flight time per mission over nearly 50 miles.

ReadyH2, in cooperation with parent company Fortress UAV, will be responsible for providing a ready supply of hydrogen gas for the project.

The six-month mission will establish inspection procedures for a domestic gas pipeline.

“Distances like that are simply not possible on battery technology,” Skyfire CEO Matt Sloane said.

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The smart cell turning solar energy into hydrogen

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What could be better than a solar cell that captures most of the visible light spectrum to generate energy? A cell that can capture the whole visible light spectrum and turn the energy into hydrogen. The cell is actually a molecule, and it is a busy molecule: it not only harnesses 50 percent more solar energy than existing solar cells, but it also turns this energy into hydrogen.

“The whole idea is that we can use photons from the sun and transform it into hydrogen. To put it simply, we are saving the energy from sunlight and storing it into chemical bonds so it can be used at a later time,” explains the lead researcher in the team that developed the molecule, chemistry professor Claudia Turro from the Ohio State University.

“What makes it work is that the system is able to put the molecule into an excited state, where it absorbs the photon and is able to store two electrons to make hydrogen,” Turro added. “This storing of two electrons in a single molecule derived from two photons, and using them together to make hydrogen, is unprecedented.”

The molecule is a form of rhodium—an inert metal and member of the platinum group—and because it can both collect solar energy and then act as a catalyst to turn it into hydrogen, it makes for a much more efficient fuel production system than existing alternatives, at least with respect to energy loss during the process of conversion of solar energy into hydrogen.

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Paralyzed man breaks world record for finishing a marathon in an exoskeleton suit

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Adam Gorlitsky says groups of people kept him going as he finished mile after mile of the 2020 Charleston Marathon.

(CNN)A South Carolina man competing in the 2020 Charleston Marathon has beaten the world record for the fastest time to finish a marathon in an exoskeleton suit.

Adam Gorlitsky, who is paralyzed from the waist down, completed Saturday’s 26.2-mile race with a time of 33 hours, 50 minutes and 23 seconds, Cory Michel, one of the organizers of the Charleston Marathon, told CNN.

The current record holder is British man Simon Kindleysides, who finished the 2018 London Marathon in 36 hours and 46 minutes, according to Guinness World Records.

Guinness has not certified Gorlitsky’s race results, which Gorlitsky said he plans to submit to the organization Monday.

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How does the embryo make all its parts at just the right moments?

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FIVE BIG QUESTIONS: If events weren’t properly timed, pandemonium would ensue. Researchers are ferreting out the internal clocks that control developmental sequence and scheduling.

Experiments, classic and contemporary, shed light on fundamental problems an embryo must solve during development.

  1. How does the embryo make all its parts at just the right moments?
  2. How do body parts grow to their right sizes?
  3. How do bodies map out left and right?
  4. How do bodies position arms, legs, wings and organs?
  5. Will we ever fully know how a body gets built?

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So you’re too ethical to eat meat; but should cows go extinct?

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Vegetarianism and veganism are becoming more popular. Alternative sources of protein, including lab-grown meat, are becoming available. This trend away from farmed meat-eating looks set to continue. From an environmental perspective and a welfare perspective, that’s a good thing. But how far should we go? Would it be good if the last cow died?

Many people value species diversity. Very many feel the pull of the intuition that it’s a bad thing if a species becomes extinct. In fact, we sometimes seem to value the species more than we value the individual members. Think of insects, for example. The life of a fly might be of trivial value, but each fly species seems considerably more valuable (despite the lack of any direct instrumental value to us of flies). Do we – should we – value cattle? Should we be concerned if cows (or a subspecies of cows) is threatened with extinction? Should we take steps to preserve them, just as we take steps to conserve pandas and wolves?

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Seven mysterious sounds science has yet to solve

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The loneliest whale in the world is just one example.

Pings. Buzzes. Rumbles. Booms. Hums. Bumps in the night. Sounds of unknown origin can be more than unsettling; they can inspire decades of mythos and fear—and obsessive scientific inquiry. Some cases of enigmatic noise are now closed, like the southern Pacific “bloops” detected by National Oceanic and Atmospheric Administration hydrophones in 1997 and finally, in 2005, tied to Antarctic icequakes. But other cacophonous culprits remain at large. From jarring radio broadcasts to harmonious dunes, here are some of the world’s great sonic mysteries.

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Look to cities, not nation-states, to solve our biggest challenges

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Los Angeles’ economy is bigger than that of many nation states.

This article is part of the World Economic Forum Annual Meeting

The world in 2020 is looking more turbulent and uncertain than ever. Powerful economic, demographic and technological forces are rewiring international politics. According to the World Economic Forum’s new Global Risks Report, structural shifts are encouraging nation-states to adopt more transactional and unilateral postures. Some nations are abandoning old alliances, questioning the value of multilateralism and retreating to narrowly defined national interests. Amid continued downward pressure on the global economy, citizens are growing restless and frustrated with their national politicians.

Maybe they’re onto something. Perhaps nation-states are part of the problem.

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Cruise Origin people mover has no controls, completely autonomous

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Cruise Origin offers a self driving mini bus for cities

It seems these days that there is no shortage of startups promising new vehicles with electric motors and self-driving systems, and now the joint operation between GM and Honda, Cruise, has unveiled its driverless people mover sans any human controls.

The Cruise Origin, billed as a bus, was unveiled at the San Francisco event “Move Beyond the Car.” The underpinnings and drive system will be built by GM.

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Drones are making America’s F-22 and F-35 more deadly than ever

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US Air Force F-22s and F-35s will soon launch and control recoverable attack drones from the cockpit of the plane.

 Key point: This technology, which hinges upon higher levels of autonomous navigation, brings a wide swath of improved mission possibilities.

US Air Force F-22s and F-35s will soon launch and control recoverable attack drones from the cockpit of the plane to expand air-combat operations, test enemy air defenses, conduct long-range ISR and even deliver weapons.

This fast-approaching technology, which calls upon advanced levels of autonomous navigation, is closer to reality due of DARPA’s Gremlins program which plans to break new ground by launching – and recovering – four drones from an in-flight C-130 next year.

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