Tag Archives: tech

#439353 What’s Going on With Amazon’s ...

Amazon’s innovation blog recently published a post entitled “New technologies to improve Amazon employee safety,” which highlighted four different robotic systems that Amazon’s Robotics and Advanced Technology teams have been working on. Three of these robotic systems are mobile robots, which have been making huge contributions to the warehouse space over the past decade. Amazon in particular was one of the first (if not the first) e-commerce companies to really understand the fundamental power of robots in warehouses, with their $775 million acquisition of Kiva Systems’ pod-transporting robots back in 2012.

Since then, a bunch of other robotics companies have started commercially deploying robots in warehouses, and over the past five years or so, we’ve seen some of those robots develop enough autonomy and intelligence to be able to operate outside of restricted, highly structured environments and work directly with humans. Autonomous mobile robots for warehouses is now a highly competitive sector, with companies like Fetch Robotics, Locus Robotics, and OTTO Motors all offering systems that can zip payloads around busy warehouse floors safely and efficiently.

But if we’re to take the capabilities of the robots that Amazon showcased over the weekend at face value, the company appears to be substantially behind the curve on warehouse robots.

Let’s take a look at the three mobile robots that Amazon describes in their blog post:

“Bert” is one of Amazon’s first Autonomous Mobile Robots, or AMRs. Historically, it’s been difficult to incorporate robotics into areas of our facilities where people and robots are working in the same physical space. AMRs like Bert, which is being tested to autonomously navigate through our facilities with Amazon-developed advanced safety, perception, and navigation technology, could change that. With Bert, robots no longer need to be confined to restricted areas. This means that in the future, an employee could summon Bert to carry items across a facility. In addition, Bert might at some point be able to move larger, heavier items or carts that are used to transport multiple packages through our facilities. By taking those movements on, Bert could help lessen strain on employees.

This all sounds fairly impressive, but only if you’ve been checked out of the AMR space for the last few years. Amazon is presenting Bert as part of the “new technologies” they’re developing, and while that may be the case, as far as we can make out these are very much technologies that seem to be new mostly just to Amazon and not really to anyone else. There are any number of other companies who are selling mobile robot tech that looks to be significantly beyond what we’re seeing here—tech that (unless we’re missing something) has already largely solved many of the same technical problems that Amazon is working on.

We spoke with mobile robot experts from three different robotics companies, none of whom were comfortable going on record (for obvious reasons), but they all agreed that what Amazon is demonstrating in these videos appears to be 2+ years behind the state of the art in commercial mobile robots.

We’re obviously seeing a work in progress with Bert, but I’d be less confused if we were looking at a deployed system, because at least then you could make the argument that Amazon has managed to get something operational at (some) scale, which is much more difficult than a demo or pilot project. But the slow speed, the careful turns, the human chaperones—other AMR companies are way past this stage.

Kermit is an AGC (Autonomously Guided Cart) that is focused on moving empty totes from one location to another within our facilities so we can get empty totes back to the starting line. Kermit follows strategically placed magnetic tape to guide its navigation and uses tags placed along the way to determine if it should speed up, slow down, or modify its course in some way. Kermit is further along in development, currently being tested in several sites across the U.S., and will be introduced in at least a dozen more sites across North America this year.

Most folks in the mobile robots industry would hesitate to call Kermit an autonomous robot at all, which is likely why Amazon doesn’t refer to it as such, instead calling it a “guided cart.” As far as I know, pretty much every other mobile robotics company has done away with stuff like magnetic tape in favor of map-based natural-feature localization (a technology that has been commercially available for years), because then your robots can go anywhere in a mapped warehouse, not just on these predefined paths. Even if you have a space and workflow that never ever changes, busy warehouses have paths that get blocked for one reason or another all the time, and modern AMRs are flexible enough to plan around those paths to complete their tasks. With these autonomous carts that are locked to their tapes, they can’t even move over a couple of feet to get around an obstacle.

I have no idea why this monstrous system called Scooter is the best solution for moving carts around a warehouse. It just seems needlessly huge and complicated, especially since we know Amazon already understands that a great way of moving carts around is by using much smaller robots that can zip underneath a cart, lift it up, and carry it around with them. Obviously, the Kiva drive units only operate in highly structured environments, but other AMR companies are making this concept work on the warehouse floor just fine.

Why is Amazon at “possibilities” when other companies are at commercial deployments?

I honestly just don’t understand what’s happening here. Amazon has (I assume) a huge R&D budget at its disposal. It was investing in robotic technology for e-commerce warehouses super early, and at an unmatched scale. Even beyond Kiva, Amazon obviously understood the importance of AMRs several years ago, with its $100+ million acquisition of Canvas Technology in 2019. But looking back at Canvas’ old videos, it seems like Canvas was doing in 2017 more or less what we’re seeing Amazon’s Bert robot doing now, nearly half a decade later.

We reached out to Amazon Robotics for comment and sent them a series of questions about the robots in these videos. They sent us this response:

The health and safety of our employees is our number one priority—and has been since day one. We’re excited about the possibilities robotics and other technology can play in helping to improve employee safety.

Hmm.

I mean, sure, I’m excited about the same thing, but I’m still stuck on why Amazon is at possibilities, while other companies are at commercial deployments. It’s certainly possible that the sheer Amazon-ness of Amazon is a significant factor here, in the sense that a commercial deployment for Amazon is orders of magnitude larger and more complex than any of the AMR companies that we’re comparing them to are dealing with. And if Amazon can figure out how to make (say) an AMR without using lidar, it would make a much more significant difference for an in-house large-scale deployment relative to companies offering AMRs as a service.

For another take on what might be going on with this announcement from Amazon, we spoke with Matt Beane, who got his PhD at MIT and studies robotics at UCSB’s Technology Management Program. At the ACM/IEEE International Conference on Human-Robot Interaction (HRI) last year, Beane published a paper on the value of robots as social signals—that is, organizations get valuable outcomes from just announcing they have robots, because this encourages key audiences to see the organization in favorable ways. “My research strongly suggests that Amazon is reaping signaling value from this announcement,” Beane told us. There’s nothing inherently wrong with signaling, because robots can create instrumental value, and that value needs to be communicated to the people who will, ideally, benefit from it. But you have to be careful: “My paper also suggests this can be a risky move,” explains Beane. “Blowback can be pretty nasty if the systems aren’t in full-tilt, high-value use. In other words, it works only if the signal pretty closely matches the internal reality.”

There’s no way for us to know what the internal reality at Amazon is. All we have to go on is this blog post, which isn’t much, and we should reiterate that there may be a significant gap between what the post is showing us about Amazon’s mobile robots and what’s actually going on at Amazon Robotics. My hope is what we’re seeing here is primarily a sign that Amazon Robotics is starting to scale things up, and that we’re about to see them get a lot more serious about developing robots that will help make their warehouses less tedious, safer, and more productive. Continue reading

Posted in Human Robots

#439354 What’s Going on With Amazon’s ...

Amazon’s innovation blog recently published a post entitled “New technologies to improve Amazon employee safety,” which highlighted four different robotic systems that Amazon’s Robotics and Advanced Technology teams have been working on. Three of these robotic systems are mobile robots, which have been making huge contributions to the warehouse space over the past decade. Amazon in particular was one of the first (if not the first) e-commerce companies to really understand the fundamental power of robots in warehouses, with their $775 million acquisition of Kiva Systems’ pod-transporting robots back in 2012.

Since then, a bunch of other robotics companies have started commercially deploying robots in warehouses, and over the past five years or so, we’ve seen some of those robots develop enough autonomy and intelligence to be able to operate outside of restricted, highly structured environments and work directly with humans. Autonomous mobile robots for warehouses is now a highly competitive sector, with companies like Fetch Robotics, Locus Robotics, and OTTO Motors all offering systems that can zip payloads around busy warehouse floors safely and efficiently.

But if we’re to take the capabilities of the robots that Amazon showcased over the weekend at face value, the company appears to be substantially behind the curve on warehouse robots.

Let’s take a look at the three mobile robots that Amazon describes in their blog post:

“Bert” is one of Amazon’s first Autonomous Mobile Robots, or AMRs. Historically, it’s been difficult to incorporate robotics into areas of our facilities where people and robots are working in the same physical space. AMRs like Bert, which is being tested to autonomously navigate through our facilities with Amazon-developed advanced safety, perception, and navigation technology, could change that. With Bert, robots no longer need to be confined to restricted areas. This means that in the future, an employee could summon Bert to carry items across a facility. In addition, Bert might at some point be able to move larger, heavier items or carts that are used to transport multiple packages through our facilities. By taking those movements on, Bert could help lessen strain on employees.

This all sounds fairly impressive, but only if you’ve been checked out of the AMR space for the last few years. Amazon is presenting Bert as part of the “new technologies” they’re developing, and while that may be the case, as far as we can make out these are very much technologies that seem to be new mostly just to Amazon and not really to anyone else. There are any number of other companies who are selling mobile robot tech that looks to be significantly beyond what we’re seeing here—tech that (unless we’re missing something) has already largely solved many of the same technical problems that Amazon is working on.

We spoke with mobile robot experts from three different robotics companies, none of whom were comfortable going on record (for obvious reasons), but they all agreed that what Amazon is demonstrating in these videos appears to be 2+ years behind the state of the art in commercial mobile robots.

We’re obviously seeing a work in progress with Bert, but I’d be less confused if we were looking at a deployed system, because at least then you could make the argument that Amazon has managed to get something operational at (some) scale, which is much more difficult than a demo or pilot project. But the slow speed, the careful turns, the human chaperones—other AMR companies are way past this stage.

Kermit is an AGC (Autonomously Guided Cart) that is focused on moving empty totes from one location to another within our facilities so we can get empty totes back to the starting line. Kermit follows strategically placed magnetic tape to guide its navigation and uses tags placed along the way to determine if it should speed up, slow down, or modify its course in some way. Kermit is further along in development, currently being tested in several sites across the U.S., and will be introduced in at least a dozen more sites across North America this year.

Most folks in the mobile robots industry would hesitate to call Kermit an autonomous robot at all, which is likely why Amazon doesn’t refer to it as such, instead calling it a “guided cart.” As far as I know, pretty much every other mobile robotics company has done away with stuff like magnetic tape in favor of map-based natural-feature localization (a technology that has been commercially available for years), because then your robots can go anywhere in a mapped warehouse, not just on these predefined paths. Even if you have a space and workflow that never ever changes, busy warehouses have paths that get blocked for one reason or another all the time, and modern AMRs are flexible enough to plan around those paths to complete their tasks. With these autonomous carts that are locked to their tapes, they can’t even move over a couple of feet to get around an obstacle.

I have no idea why this monstrous system called Scooter is the best solution for moving carts around a warehouse. It just seems needlessly huge and complicated, especially since we know Amazon already understands that a great way of moving carts around is by using much smaller robots that can zip underneath a cart, lift it up, and carry it around with them. Obviously, the Kiva drive units only operate in highly structured environments, but other AMR companies are making this concept work on the warehouse floor just fine.

Why is Amazon at “possibilities” when other companies are at commercial deployments?

I honestly just don’t understand what’s happening here. Amazon has (I assume) a huge R&D budget at its disposal. It was investing in robotic technology for e-commerce warehouses super early, and at an unmatched scale. Even beyond Kiva, Amazon obviously understood the importance of AMRs several years ago, with its $100+ million acquisition of Canvas Technology in 2019. But looking back at Canvas’ old videos, it seems like Canvas was doing in 2017 more or less what we’re seeing Amazon’s Bert robot doing now, nearly half a decade later.

We reached out to Amazon Robotics for comment and sent them a series of questions about the robots in these videos. They sent us this response:

The health and safety of our employees is our number one priority—and has been since day one. We’re excited about the possibilities robotics and other technology can play in helping to improve employee safety.

Hmm.

I mean, sure, I’m excited about the same thing, but I’m still stuck on why Amazon is at possibilities, while other companies are at commercial deployments. It’s certainly possible that the sheer Amazon-ness of Amazon is a significant factor here, in the sense that a commercial deployment for Amazon is orders of magnitude larger and more complex than any of the AMR companies that we’re comparing them to are dealing with. And if Amazon can figure out how to make (say) an AMR without using lidar, it would make a much more significant difference for an in-house large-scale deployment relative to companies offering AMRs as a service.

For another take on what might be going on with this announcement from Amazon, we spoke with Matt Beane, who got his PhD at MIT and studies robotics at UCSB’s Technology Management Program. At the ACM/IEEE International Conference on Human-Robot Interaction (HRI) last year, Beane published a paper on the value of robots as social signals—that is, organizations get valuable outcomes from just announcing they have robots, because this encourages key audiences to see the organization in favorable ways. “My research strongly suggests that Amazon is reaping signaling value from this announcement,” Beane told us. There’s nothing inherently wrong with signaling, because robots can create instrumental value, and that value needs to be communicated to the people who will, ideally, benefit from it. But you have to be careful: “My paper also suggests this can be a risky move,” explains Beane. “Blowback can be pretty nasty if the systems aren’t in full-tilt, high-value use. In other words, it works only if the signal pretty closely matches the internal reality.”

There’s no way for us to know what the internal reality at Amazon is. All we have to go on is this blog post, which isn’t much, and we should reiterate that there may be a significant gap between what the post is showing us about Amazon’s mobile robots and what’s actually going on at Amazon Robotics. My hope is what we’re seeing here is primarily a sign that Amazon Robotics is starting to scale things up, and that we’re about to see them get a lot more serious about developing robots that will help make their warehouses less tedious, safer, and more productive. Continue reading

Posted in Human Robots

#439305 This Week’s Awesome Tech Stories From ...

ARTIFICIAL INTELLIGENCE
These Creepy Fake Humans Represent a New Age in AI
Karen Hao | MIT Technology Review
“[The simulated humans] are synthetic data designed to feed the growing appetite of deep-learning algorithms. Firms like Datagen offer a compelling alternative to the expensive and time-consuming process of gathering real-world data. They will make it for you: how you want it, when you want—and relatively cheaply.”

ROBOTICS
For $2,700, You Too Can Have Your Very Own Robotic Dog
Victoria Song | Gizmodo
“You’re probably familiar with Spot, Boston Dynamics’ highly advanced, nightmare-inducing robot dog. And while it went on sale last year, few of us have an extra $74,500 lying around to buy one. However, Chinese firm Unitree Robotics has a similar quadruped bot that’s not only a fraction of the size, but it also starts at a mere $2,700. For an advanced robot dog, that’s actually pretty dang affordable.”

SPACE
Terran R Rocket From Relativity Space Will Be Completely 3D Printed, Completely Reusable
Evan Ackerman | IEEE Spectrum
“This week, Relativity Space is announcing the Terran R, a 65 meter tall entirely 3D-printed two stage launch vehicle capable of delivering 20,000 kg into low Earth orbit and then returning all of its bits and pieces safely back to the ground to be launched all over again. Relativity Space’s special sauce is that they 3D print as close to absolutely everything as they possibly can, reducing the part count of their rockets by several orders of magnitude.”

BIOTECH
Wake Forest Teams Win a NASA Prize for 3D Printing Human Liver Tissue
A. Tarantola | Engadget
“i‘I cannot overstate what an impressive accomplishment this is. When NASA started this challenge in 2016, we weren’t sure there would be a winner,’ Jim Reuter, NASA associate administrator for space technology, said in a recent press statement. ‘It will be exceptional to hear about the first artificial organ transplant one day and think this novel NASA challenge might have played a small role in making it happen.’i”

SPACE
How Risky Is It to Send Jeff Bezos to Space?
Eric Niiler | Wired
“The rich-guy space race between Bezos and Branson (SpaceX’s Elon Musk is the odd man out for now) may convince other well-heeled space tourists who want assurances that a rocket ride is both fun and safe. But experts note that space travel is always risky, even when spacecraft have undergone years of testing. Blue Origin’s flight will be its first launch with human passengers; previous flights have only carried a mannequin. For Virgin Galactic, it will be only the second time the rocket plane has carried people.”

ETHICS
OpenAI Claims to Have Mitigated Bias and Toxicity in GPT-3
Kyle Wiggers | VentureBeat
“In a study published today, OpenAI, the lab best known for its research on large language models, claims it’s discovered a way to improve the ‘behavior’ of language models with respect to ethical, moral, and societal values. The approach, OpenAI says, can give developers the tools to dictate the tone and personality of a model depending on the prompt that the model’s given.”

NEUROSCIENCE
Neuroscientists Have Discovered a Phenomenon That They Can’t Explain
Ed Yong | The Atlantic
“Put it this way: The neurons that represented the smell of an apple in May and those that represented the same smell in June were as different from each other as those that represent the smells of apples and grass at any one time. …’Scientists are meant to know what’s going on, but in this particular case, we are deeply confused. We expect it to take many years to iron out,’ [said neuroscientists Carl Schoonover].”

CRYPTOCURRENCY
Global Banking Regulators Call for Toughest Rules for Cryptocurrencies
Kalyeena Makortoff | The Guardian
“The Basel Committee on Banking Supervision, which consists of regulators from the world’s leading financial centres, is proposing a ‘new conservative prudential treatment’ for crypto-assets that would force banks to put aside enough capital to cover 100% of potential losses. That would be the highest capital requirement of any asset, illustrating that cryptocurrencies and related investments are seen as far more risky and volatile than conventional stocks or bonds.”

SCIENCE
DNA Jumps Between Species. Nobody Knows How Often.
Christie Wilcox | Quanta
“Recent studies of a range of animals—other fish, reptiles, birds and mammals—point to a similar conclusion: The lateral inheritance of DNA, once thought to be exclusive to microbes, occurs on branches throughout the tree of life.”

GOVERNANCE
Italy’s Failed Digital Democracy Dream Is a Warning
Michele Barbero | Wired UK
“Aside from the Five Star’s shortcomings and latest woes, however, citizens’ direct participation in party politics by means of digital tools is likely to pick up pace in the near future. ‘We are going to see more and more the use of the internet to delegate powers to party members,’ says D’Alimonte: ‘The internet is changing the functioning of democracy, we are just at the beginning.’i”

Image Credit: baikang yuan / Unsplash Continue reading

Posted in Human Robots

#439275 This Week’s Awesome Tech Stories From ...

ARTIFICIAL INTELLIGENCE
China’s Gigantic Multi-Modal AI Is No One-Trick Pony
A. Tarantola | Engadget
“When Open AI’s GPT-3 model made its debut in May of 2020, its performance was widely considered to be the literal state of the art. …But oh what a difference a year makes. Researchers from the Beijing Academy of Artificial Intelligence announced on Tuesday the release of their own generative deep learning model, Wu Dao, a mammoth AI seemingly capable of doing everything GPT-3 can do, and more.”

TRANSPORTATION
United Airlines Wants to Bring Back Supersonic Air Travel
Lauren Hirsch | The New York Times
“…United Airlines said it was ordering 15 jets that can travel faster than the speed of sound from Boom Supersonic, a start-up in Denver. …Boom, which has raised $270 million from venture capital firms and other investors, said it planned to introduce aircraft in 2025 and start flight tests in 2026. It expects the plane, which it calls the Overture, to carry passengers before the end of the decade.”

SPACE
Spacex Signs ‘Blockbuster Deal’ To Send Space Tourists to the ISS
Amanda Kooser | CNET
“On Wednesday, space tourism company Axiom Space announced a ‘blockbuster deal’ with SpaceX that will send private crews to the ISS through 2023. Axiom and SpaceX already had a deal in place for a Dragon spacecraft flight with three private citizens and former NASA astronaut Michael López-Alegría in early 2022. The new agreement expands the scope to a total of four flights.”

TRANSPORTATION
Why Electric Cars Will Take Over Sooner Than You Think
Justin Rowlatt | BBC News
“This isn’t a fad, this isn’t greenwashing. Yes, the fact many governments around the world are setting targets to ban the sale of petrol and diesel vehicles gives impetus to the process. But what makes the end of the internal combustion engine inevitable is a technological revolution. And technological revolutions tend to happen very quickly.”

ETHICS
Have Autonomous Robots Started Killing in War?
James Vincent | The Verge
“…over the past week, a number of publications tentatively declared, based on a UN report from the Libyan civil war, that killer robots may have hunted down humans autonomously for the first time. As one headline put it: ‘The Age of Autonomous Killer Robots May Already Be Here.’ But is it? As you might guess, it’s a hard question to answer.”

ENERGY
Chart: Behind the Three-Decade Collapse of Lithium-Ion Battery Costs
Rahul Rao | IEEE Spectrum
“Between 1991 and 2018, the average price of the batteries that power mobile phones, fuel electric cars, and underpin green energy storage fell more than thirtyfold, according to work by Micah Ziegler Jessika Trancik and at the Massachusetts Institute of Technology. …Batteries today, the researchers say, have mass-production scales and energy densities unthinkable 30 years ago.”

HEALTH
The UK Has a Plan for a New ‘Pandemic Radar’ System
Maryn McKenna | Wired
“i‘What we really need is a broadly distributed, high-fidelity, always-on surveillance system…’ says Samuel V. Scarpino, an assistant professor at Northeastern University who directs its Emergent Epidemics Lab. ‘This is not something that can be built easily. But we have a narrow window right now, where basically the whole planet knows that we need to solve this.’i”

INTERFACES
Vilnius, Lithuania Built a ‘Portal’ to Another City To Help Keep People Connected
Kim Lyons | The Verge
“They really went all-in on the idea and the design; it looks quite a bit like something out of the erstwhile sci-fi movie/show Stargate. …The portals both have large screens and cameras that broadcast live images between the two cities—a kind of digital bridge, according to its creators—meant to encourage people to ‘rethink the meaning of unity,’ Go Vilnius said in a press release. Aw.”

SECURITY
Amazon Devices Will Soon Automatically Share Your Internet With Neighbors
Dan Goodin | Ars Technica
“Amazon’s experimental wireless mesh networking turns users into guinea pigs. …By default, a variety of Amazon devices will enroll in the system come June 8. And since only a tiny fraction of people take the time to change default settings, that means millions of people will be co-opted into the program whether they know anything about it or not.”

Image Credit: Praewthida K / Unsplash Continue reading

Posted in Human Robots

#439214 This Week’s Awesome Tech Stories From ...

COMPUTING
A New Brain Implant Translates Thoughts of Writing Into Text
John Timmer | Wired
“In early experiments, a paralyzed man with implants in his premotor cortex typed 90 characters per minute—by envisioning he was writing by hand. …[This easily topped] the previous record for implant-driven typing, which was about 25 characters per minute. The raw error rate was about 5 percent, and applying a system like a typing autocorrect could drop the error rate down to 1 percent.”

VIRTUAL REALITY
Grand Theft Auto Looks Frighteningly Photorealistic With This Machine Learning Technique
Andrew Liszewski | Gizmodo
“What’s even more impressive is that the researchers think, with the right hardware and further optimization, the gameplay footage could be enhanced by their convolutional network at ‘interactive rates’—another way to say in real-time—when baked into a video game’s rendering engine. So instead of needing a $2,000 PS6 for games to look like this, all that may be needed is a software update.”

INTERFACES
Better Than Holograms: 3D-Animated Starships Can Be Viewed From Any Angle
Jennifer Oullette | Ars Technica
“The technology making this science fiction a potential reality is known as an optical trap display (OTD). These are not holograms; they’re volumetric images, as they can be viewed from any angle, as they seem to float in the air.”

NEUROSCIENCE
Genes Linked to Self-Awareness in Modern Humans Were Less Common in Neanderthals
Emily Willingham | Scientific American
“Our creative powers may explain why we have been around for the past 40,000 years and Neanderthals have not. Also, traits that stand out in modern humans may provide clues as to why we have maneuvered a helicopter on Mars while chimpanzees have only engaged in the most basic tool use.”

FUTURE
The Profound Potential of Elon Musk’s New Rocket
Robert Zubrin | Nautilus
“Starship won’t just give us the ability to send human explorers to Mars, the moon, and other destinations in the inner solar system, it offers us a two-order-of-magnitude increase in overall operational capability to do pretty much anything we want to do in space.”

ARTIFICIAL INTELLIGENCE
The Pentagon Inches Toward Letting AI Control Weapons
Will Knight | Wired
“The drill was one of several conducted last summer to test how artificial intelligence could help expand the use of automation in military systems, including in scenarios that are too complex and fast-moving for humans to make every critical decision. The demonstrations also reflect a subtle shift in the Pentagon’s thinking about autonomous weapons, as it becomes clearer that machines can outperform humans at parsing complex situations or operating at high speed.”

TECHNOLOGY
Smartphone Is Now ‘the Place Where We Live’, Anthropologists Say
Alex Hern | The Guardian
“i‘The smartphone is perhaps the first object to challenge the house itself (and possibly also the workplace) in terms of the amount of time we dwell in it while awake,’ they conclude, coining the term ‘transportal home’ to describe the effect. ‘We are always “at home” in our smartphone. We have become human snails carrying our home in our pockets.”

SCIENCE
Extraterrestrial Plutonium Atoms Turn up on Ocean Bottom
William J. Broad | The New York Times
“Scientists studying a sample of oceanic crust retrieved from the Pacific seabed nearly a mile down have discovered traces of a rare isotope of plutonium, the deadly element that has been central to the atomic age. They say it was made in colliding stars and later rained down through Earth’s atmosphere as cosmic dust millions of years ago.”

Image Credit: Marek Piwnicki / Unsplash Continue reading

Posted in Human Robots