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The End of the Great Pacific Garbage Patch | The Ocean Cleanup
The Ocean Cleanup has a huge task on its hands in ridding the seas of plastic waste, but a sleek new video offers a compelling look at its latest plan of attack. The animation shows massive trash-collection barriers sweeping through the Great Pacific Garbage Patch with great efficiency, with the company envisioning 10 of these systems would be enough to put a serious dent in the problem.
After first introducing the idea back in 2013, The Ocean Cleanup team has developed and tested various iterations of its giant trash-collecting barriers. Its plans involve deploying these in the Great Pacific Garbage Patch to gather up plastic debris, and last year proved the viability of this approach with a massive haul.
The Ocean Cleanup has a huge task on its hands in ridding the seas of plastic waste, but a sleek new video offers a compelling look at its latest plan of attack. The animation shows massive trash-collection barriers sweeping through the Great Pacific Garbage Patch with great efficiency, with the company envisioning 10 of these systems would be enough to put a serious dent in the problem.
After first introducing the idea back in 2013, The Ocean Cleanup team has developed and tested various iterations of its giant trash-collecting barriers. Its plans involve deploying these in the Great Pacific Garbage Patch to gather up plastic debris, and last year proved the viability of this approach with a massive haul.
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Meet the bronze deep-sea DRAGON! Scientists spot a rare torpedo-like dragonfish lurking in the twilight zone of Monterey Bay – marking only the fourth time it's been seen
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During almost all of Juno's past perijove flybys, JunoCam took images that allowed us to derive cloud velocity field data from cloud feature displacements.
During more recent Jupiter flybys, JunoCam observed distinct cloud top features with very different emission angles within less than ten minutes. These images also show relative cloud feature displacements. These newly observed displacements fields, however, appear to be parallel to vector fields that would be expected from parallaxes induced by long-baseline observations of the cloud top topography rather than primarily from cloud motion.
Based on this assumption, we show stereo images to make these observations intuitive. For this purpose, we project a pair of JunoCam images to the same trajectory position.
The pair of trajectory positions the JunoCam images have actually been taken from can be used to derive a quantitative displacement field in terms of pixels per km altitude offset. Stereo correspondence ís simplified to a one-dimensional search. Observed relative displacements can then be divided by the previously derived scaling in order to retrieve a digital elevation map of relative heights of the cloud tops.
Digital elevation maps can further be rendered in 3D.
During more recent Jupiter flybys, JunoCam observed distinct cloud top features with very different emission angles within less than ten minutes. These images also show relative cloud feature displacements. These newly observed displacements fields, however, appear to be parallel to vector fields that would be expected from parallaxes induced by long-baseline observations of the cloud top topography rather than primarily from cloud motion.
Based on this assumption, we show stereo images to make these observations intuitive. For this purpose, we project a pair of JunoCam images to the same trajectory position.
The pair of trajectory positions the JunoCam images have actually been taken from can be used to derive a quantitative displacement field in terms of pixels per km altitude offset. Stereo correspondence ís simplified to a one-dimensional search. Observed relative displacements can then be divided by the previously derived scaling in order to retrieve a digital elevation map of relative heights of the cloud tops.
Digital elevation maps can further be rendered in 3D.
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Ferrofluid robot can split into tiny droplets and reform into a blob
A soft robot made from droplets of a magnetic fluid can break itself up and reconstitute itself later when it encounters obstacles or thin passages. Researchers say it could be used for targeted drug delivery in the future.
Xinjian Fan at Soochow University in Taiwan and his colleagues used droplets of a ferrofluid, in this case magnetic iron oxide nanoparticles suspended in oil, to make a soft robot about a centimetre in size. A set of controllable magnets can direct the robot to make itself bigger or smaller, as needed.
A soft robot made from droplets of a magnetic fluid can break itself up and reconstitute itself later when it encounters obstacles or thin passages. Researchers say it could be used for targeted drug delivery in the future.
Xinjian Fan at Soochow University in Taiwan and his colleagues used droplets of a ferrofluid, in this case magnetic iron oxide nanoparticles suspended in oil, to make a soft robot about a centimetre in size. A set of controllable magnets can direct the robot to make itself bigger or smaller, as needed.
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what ‘representation’ does and should do for neuroscientists in terms of three key aspects of representation. (i) Correlation: a neural representation correlates to its represented content; (ii) causal role: the representation has a characteristic effect on behavior; and (iii) teleology: a goal or purpose served by the behavior and thus the representation. We draw broadly on literature in both neuroscience and philosophy to show how these three aspects are rooted in common approaches to understanding the brain and mind.
Ben Baker, Benjamin Lansdell, Konrad P. Kording. Three aspects of representation in neuroscience. Trends in Cognitive Sciences, 26 September 2022
https://doi.org/10.1016/j.tics.2022.08.014
Ben Baker, Benjamin Lansdell, Konrad P. Kording. Three aspects of representation in neuroscience. Trends in Cognitive Sciences, 26 September 2022
https://doi.org/10.1016/j.tics.2022.08.014
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Ian Hurricane in Florida today
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Based on its market share, the world's most notorious cryptocurrency Bitcoin results in more climate damage than the production of beef and nearly as much damage as crude oil, researchers in the United States have calculated.m
ScienceAlert
Bitcoin's Climate Impact Is Bigger Than Beef Farming – And It's Only Getting Worse
It could soon be worse than crude oil.
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While NASA’s Juno spacecraft has captured some stunning imagery of Jupiter since entering orbit around the gas giant in 2016, it’s not the only celestial body in the probe’s sights. As part of its exploration of the Jovian system, Juno is also inspecting one of planet’s largest moons in Europa, and has this week swooped in for its closest look yet.
Europa is a source of much intrigue for scientists on the hunt for life beyond Earth. For years, researchers have been watching the moon closely from afar and evidence of liquid water has begun to build, adding weight to the theory that a subsurface ocean lies beneath its icy shell.
This salty body of water is thought to be one the most likely places to harbor life in our Solar System, and with its advanced suite of imagers and instruments, Juno may just help us dig into these secrets. On Thursday September 29, the probe came within 219 miles (352 km) of the moon’s surface, and was the first spacecraft to fly this close to Europa since the Galileo probe in 2000.
In doing so, Juno captured what are some of the highest-resolution images of Europa to date, at around 1 km (0.6 miles) per pixel, along with new data on its icy shell and subsurface structure. The first of these images has now made its way back to Earth, and was snapped around 1,500 km (930 miles) from the surface as Juno zeroed in.
Europa is a source of much intrigue for scientists on the hunt for life beyond Earth. For years, researchers have been watching the moon closely from afar and evidence of liquid water has begun to build, adding weight to the theory that a subsurface ocean lies beneath its icy shell.
This salty body of water is thought to be one the most likely places to harbor life in our Solar System, and with its advanced suite of imagers and instruments, Juno may just help us dig into these secrets. On Thursday September 29, the probe came within 219 miles (352 km) of the moon’s surface, and was the first spacecraft to fly this close to Europa since the Galileo probe in 2000.
In doing so, Juno captured what are some of the highest-resolution images of Europa to date, at around 1 km (0.6 miles) per pixel, along with new data on its icy shell and subsurface structure. The first of these images has now made its way back to Earth, and was snapped around 1,500 km (930 miles) from the surface as Juno zeroed in.
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The 2022 Nobel Prize in Physics has been awarded to three scientists for their work in pioneering quantum information science. Alain Aspect, John F. Clauser and Anton Zeilinger all conducted some of the first experiments with entangled photons, enabling a future for commercial quantum computers.
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In a world-first clinical trial, three babies have been born after receiving stem cell treatment for spina bifida. The treatment involves administering a stem cell patch to the fetus’ spine while still developing in the womb, and early results are promising one year on.
Video: https://youtu.be/TGvHRqsopQo
Video: https://youtu.be/TGvHRqsopQo
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The findings come from a team of researchers at the University of California, San Francisco investigating a signaling pathway called the integrated stress response (ISR). This is a general cellular mechanism that is triggered in the presence of environmental stresses and often leads to a shutdown in the protein production facilities within cells.
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Engineers at Duke University have developed a novel delivery system for cancer treatment and demonstrated its potential against one of the disease’s most troublesome forms. In newly published research in mice with pancreatic cancer, the scientists showed how a radioactive implant could completely eliminate tumors in the majority of the rodents, demonstrating what they say is the most effective treatment ever studied in these pre-clinical models.
Pancreatic cancer is notoriously difficult to diagnose and treat, with tumor cells of this type highly evasive and loaded with mutations that make them resistant to many drugs. It accounts for just 3.2 percent of all cancers, yet is the third leading cause of cancer-related death. One way of tackling it is by deploying chemotherapy to hold the tumor cells in a state that makes them vulnerable to radiation, and then hitting the tumor with a targeted radiation beam.
Pancreatic cancer is notoriously difficult to diagnose and treat, with tumor cells of this type highly evasive and loaded with mutations that make them resistant to many drugs. It accounts for just 3.2 percent of all cancers, yet is the third leading cause of cancer-related death. One way of tackling it is by deploying chemotherapy to hold the tumor cells in a state that makes them vulnerable to radiation, and then hitting the tumor with a targeted radiation beam.
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Engineers at the SLAC National Accelerator Laboratory have spent the last seven years building the Legacy Survey of Space and Time, or LSST, camera. The camera is the size of a small car and weighs about three tons, and at five feet across, the lens holds a Guinness World Record. Watch the video to see visit inside the clean room with the camera.
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