Or, for the other half of you: Here Is Our Ivy Wolk Explainer.

I’ve been reviewing robot vacuums for more than a decade, and robot mops for just as long. It’s been astonishing how the technology has evolved, from the original iRobot Roomba bouncing off of walls and furniture to robots that use lidar and vision to map your entire house and intelligently keep it clean.

As part of this evolution, cleaning robots have become more and more hands-off, and most of them are now able to empty themselves into occasionally enormous docks with integrated vacuums and debris bags. This means that your robot can vacuum your house, empty itself, recharge, and repeat this process until the dock’s dirt bag fills up.

But this all breaks down when it comes to robots that both vacuum and mop. Mopping, which is a capability that you definitely want if you have hard floors, requires a significant amount of clean water and generates an equally significant amount of dirty water. One approach is to make docks that are even more enormous—large enough to host tanks for clean and dirty water that you have to change out on a weekly basis.

SwitchBot, a company that got its start with a stick-on robotic switch that can make dumb things with switches into smart things, has been doing some clever things in the robotic vacuum space as well, and we’ve been taking a look at the SwitchBot S10, which hooks up to your home plumbing to autonomously manage all of its water needs. And I have to say, it works so well that it feels inevitable: this is the future of home robots.

A Massive Mopping Vacuum

The giant dock can collect debris from the robot for months, and also includes a hot air dryer for the roller mop.Evan Ackerman/IEEE Spectrum

The SwitchBot S10 is a hybrid robotic vacuum and mop that uses a Neato-style lidar system for localization and mapping. It’s also got a camera on the front to help it with obstacle avoidance. The mopping function uses a cloth-covered spinning roller that adds clean water and sucks out dirty water on every rotation. The roller lifts automatically when the robot senses that it’s about to move onto carpet. The S10 comes with a charging dock with an integrated vacuum and dust collection system, and there’s also a heated mop cleaner underneath, which is a nice touch.

I’m not going to spend a lot of time analyzing the S10’s cleaning performance. From what I can tell, it does a totally decent job vacuuming, and the mopping is particularly good thanks to the roller mop that exerts downward pressure on the floor while spinning. Just about any floor cleaning robot is going to do a respectable job with the actual floor cleaning—it’s all the other stuff, like software and interface and ease of use, that have become more important differentiators.

Home Plumbing Integration

The water dock, seen here hooked up to my toilet and sink, exchanges dirty water out of the robot and includes an option to add cleaning fluid.Evan Ackerman/IEEE Spectrum

The S10’s primary differentiator is that it integrates with your home plumbing. It does this through a secondary dock—there’s the big charging dock, which you can put anywhere, and then the much smaller water dock, which is small enough to slide underneath an average toe-kick in a kitchen.

The dock includes a pumping system that accesses clean water through a pressurized water line, and then squirts dirty water out into a drain. The best place to find this combination of fixtures is near a sink with a p-trap, and if this is already beyond the limits of your plumbing knowledge, well, that’s the real challenge with the S10. The S10 is very much not plug-and-play; to install the water dock, you should be comfortable with basic tool use and, more importantly, have some faith in the integrity of your existing plumbing.

My house was built in the early 1960s, which means that a lot of my plumbing consists of old copper with varying degrees of corrosion and mineral infestation, along with slightly younger but somewhat brittle PVC. Installing the clean water line for the dock involves temporarily shutting off the cold water line feeding a sink or a toilet—that is, turning off a valve that may not have been turned for a decade or more. This is risky, and the potential consequences of any uncontrolled water leak are severe, so know where your main water shutoff is before futzing with the dock installation.

To SwitchBot’s credit, the actual water dock installation process was very easy, thanks to a suite of connectors and adapters that come included. I installed my dock in between a toilet and a pedestal sink, with access to the toilet’s water valve for clean water and the sink’s p-trap for dirty water. The water dock is battery powered, and cleverly charges from the robot itself, so it doesn’t need a power outlet. Even so, this one spot was pretty much the only place in my entire house where the water dock could easily go: my other bathrooms have cabinet sinks, which would have meant drilling holes for the water lines, and neither of them had floor space where the dock could live without being kicked all the time. It’s not like the water dock is all that big, but it really needs to be out of the way, and it can be hard to find a compatible space.

Mediocre Mapping

With the dock set up, the next step is mapping. The mapping process with the S10 was a bit finicky. I spent a bunch of time prepping my house—that is, moving as much furniture as possible off of the floor to give the robot the best chance at making a solid map. I know this isn’t something that most people probably do for their robots, but knowing robots like I do, I figure that getting a really good map is worth the hassle in the long run.

The first mapping run completed in about 20 minutes, but the robot got “stuck” on the way back to its dock thanks to a combination of a bit of black carpet and black coffee table legs. I rescued it, but it promptly forgot its map, and I had to start again. The second time, the robot failed to map my kitchen, dining room, laundry room, and one bathroom by not going through a wide open doorway off of the living room. This was confusing, because I could see the unexplored area on the map, and I’m not sure why the robot decided to call it a day rather than investigating that pretty obvious frontier region.

SwitchBot is not terrible at mapping, but it’s definitely sub-par relative to the experiences that I’ve had with older generations of other robots. The S10 also intermittently freaked out on the black patterned carpet that I have: moving very cautiously, spinning in circles, and occasionally stopping completely while complaining about malfunctioning cliff sensors, presumably because my carpet was absorbing all of the infrared from its cliff sensors while it was trying to map.

Black carpet, terror of robots everywhere.Evan Ackerman/IEEE Spectrum

Part of my frustration here is that I feel like I should be able to tell the robot “it’s a black carpet in that spot, you’re fine,” rather than taking such drastic measures as taping over all of the cliff sensors with tin foil, which I’ve had to do on occasion. And let me tell you how overjoyed I was to discover that the S10’s map editor has that exact option. You can also segment rooms by hand, and even position furniture to give the robot a clue on what kind of obstacles to expect. What’s missing is some way of asking the robot to explore a particular area over again, which would have made the initial process a lot easier.

Would a smarter robot be able to figure out all of this stuff on its own? Sure. But robots are dumb, and being able to manually add carpets and furniture and whatnot is an incredibly useful feature, I just wish I could do that during the mapping run somehow instead of having to spend a couple of hours getting that first map to work. Oh well.

How the SwitchBot S10 Cleans

When you ask the S10 to vacuum and mop, it leaves its charging dock and goes to the water dock. Once it docks there, it will extract any dirty water, clean its roller mop, extract the dirty water, wash its filter, and then finally refill itself with clean water before heading off to start mopping. It may do this several times over the course of a cleaning run, depending on how much water you ask it to use, but it’s quite good at managing all of this by itself. If you would like your floor to be extra clean, you can have the robot make two passes over the same area, which it does in a crosshatch pattern. And the app helpfully clues you in to everything that the robot is doing, including real-time position.

The app does and excellent job of showing where the robot has cleaned. You can also add furniture and floor types to help the robot clean better.Evan Ackerman/IEEE Spectrum

I’m pleasantly surprised by my experience with the S10 and the water dock. It was relatively easy to install and works exactly as it should. This is getting very close to the dream for robot vacuums, right? I will never have to worry about clean water tanks or dirty water tanks. The robot can mop every day if I want it to, and I don’t ever have to think about it, short of emptying the charging dock’s dustbin every few months and occasionally doing some basic robot maintenance.

SwitchBot’s Future

Being able to access water on-demand for mopping is pretty great, but the S10’s water dock is about more than that. SwitchBot already has plans for a humidifier and dehumidifier, which can be filled and emptied with the S10 acting as a water shuttle. And the dehumidifier can even pull water out of the air and then the S10 can use that water to mop, which is pretty cool. I can think of two other applications for a water shuttle that are immediately obvious: pets, and plants.

SwitchBot is already planning for more ways of using the S10’s water transporting capability.SwitchBot

What about a water bowl for your pets that you can put anywhere in your house, and it’s always full of fresh water, thanks to a robot that not only tops the water off, but changes it completely? Or a little plant-sized dock that lives on the floor with a tube up to the pot of your leafy friend for some botanical thirst quenching? Heck, I have an entire fleet of robotic gardens that would love to be tended by a mobile water delivery system.

SwitchBot is not the only company to offer plumbing integration for home robots. Narwal and Roborock also have options for plumbing add-on kits to their existing docks, although they seem to be designed more for European or Asian homes where home plumbing tends to be designed a bit differently. And besides the added complication of systems like these, you’ll pay a premium for them: the SwitchBot S10 can cost as much as $1200, although it’s frequently on sale for less. As with all new features for floor care robots, though, you can expect the price to drop precipitously over the next several years as new features become standard, and I hope plumbing integration gets there soon, because I’m sold.

Thirteen years since a massive earthquake and tsunami struck the Fukushima Dai-ichi nuclear power plant in northern Japan, causing a loss of power, meltdowns and a major release of radioactive material, operator Tokyo Electric Power Co. (TEPCO) finally seems to be close to extracting the first bit of melted fuel from the complex—thanks to a special telescopic robotic device.

Despite Japan’s prowess in industrial robotics, TEPCO had no robots to deploy in the immediate aftermath of the disaster. Since then, however, robots have been used to measure radiation levels, clear building debris, and survey the exterior and interior of the plant overlooking the Pacific Ocean.

It will take decades to decommission Fukushima Dai-ichi, and one of the most dangerous, complex tasks is the removal and storage of about 880 tons of highly radioactive molten fuel in three reactor buildings that were operating when the tsunami hit. TEPCO believes mixtures of uranium, zirconium and other metals accumulated around the bottom of the primary containment vessels (PCVs) of the reactors—but the exact composition of the material is unknown. The material is “fuel debris,” which TEPCO defines as overheated fuel that has melted with fuel rods and in-vessel structures, then cooled and re-solidified. The extraction was supposed to begin in 2021 but ran into development delays and obstacles in the extraction route; the coronavirus pandemic also slowed work.

While TEPCO wants a molten fuel sample to analyze for exact composition, getting just a teaspoon of the stuff has proven so tricky that the job is years behind schedule. That may change soon as crews have deployed the telescoping device to target the 237 tons of fuel debris in Unit 2, which suffered less damage than the other reactor buildings and no hydrogen explosion, making it an easier and safer test bed.

“We plan to retrieve a small amount of fuel debris from Unit 2, analyze it to evaluate its properties and the process of its formation, and then move on to large-scale retrieval,” says Tatsuya Matoba, a spokesperson for TEPCO. “We believe that extracting as much information as possible from the retrieved fuel debris will likely contribute greatly to future decommissioning work.”

How TEPCO Plans to Retrieve a Fuel Sample

Getting to the fuel is easier said than done. Shaped like an inverted light bulb, the damaged PCV is a 33-meter-tall steel structure that houses the reactor pressure vessel where nuclear fission took place. A 2-meter-long isolation valve designed to block the release of radioactive material sits at the bottom of the PCV, and that’s where the robot will go in. The fuel debris itself is partly underwater.

The robot arm is being preceded by a smaller telescopic device. The telescopic device, which is trying to retrieve 3 grams of the fuel debris without further contamination to the outside environment, is similar to the larger robot arm, which is better suited for the retrieval of larger bits of debris.

Mitsubishi Heavy Industries, the International Research Institute for Nuclear Decommissioning and UK-based Veolia Nuclear Solutions developed the robot arm to enter small openings in the PCV, where it can survey the interior and grab the fuel. Mostly made of stainless steel and aluminum, the arm measures 22 meters long, weighs 4.6 tons and can move along 18 degrees of freedom. It’s a boom-style arm, not unlike the robotic arms on the International Space Station, that rests in a sealed enclosure box when not extended.

The arm consists of four main elements: a carriage that pushes the assembly through the openings, arm links that can fold up like a ream of dot matrix printer paper, an arm that has three telescopic stages, and a “wand” (an extendable pipe-shaped component) with cameras and a gripper on its tip. Both the arm and the wand can tilt downward toward the target area.

After the assembly is pushed through the PCV’s isolation valve, it angles downward over a 7.2-meter-long rail heading toward the base of the reactor. It continues through existing openings in the pedestal, a concrete structure supporting the reactor, and the platform, which is a flat surface under the reactor.

Then, the tip is lowered on a cable like the grabber in a claw machine toward the debris field at the bottom of the pedestal. The gripper tool at the end of the component has two delicate pincers (only 5 square millimeters), that can pinch a small pebble of debris. The debris is transferred to a container and, if all goes well, is brought back up through the openings and placed in a glovebox: A sealed, negative-pressure container in the reactor building where initial testing can be performed. It will then be moved to a Japan Atomic Energy Agency facility in nearby Ibaraki Prefecture for detailed analysis.

While the gripper on the telescopic device currently being used was able to reach the debris field and grasp a piece of rubble—it’s unknown if it was actually melted fuel—last month, two of the four cameras on the device stopped working a few days later, and the device was eventually reeled back into the enclosure box. Crews confirmed there were no problems with signal wiring from the control panel in the reactor building, and proceeded to perform oscilloscope testing. TEPCO speculates that radiation passing through camera semiconductor elements caused electrical charge to build up, and that the charge will drain if the cameras are left on in a relatively low-dose environment. It was the latest setback in a very long project.

“Retrieving fuel debris from Fukushima Daiichi Nuclear Power Station is an extremely difficult task, and a very important part of decommissioning,” says Matoba. “With the goal of completing the decommissioning in 30 to 40 years, we believe it is important to proceed strategically and systematically with each step of the work at hand.”

This story was updated on 15 October, 2024 to clarify that TEPCO is using two separate tools (a smaller telescopic device and a larger robot arm) in the process of retrieving fuel debris samples.

Marina Umaschi Bers has long been at the forefront of technological innovation for kids. In the 2010s, while teaching at Tufts University, in Massachusetts, she codeveloped the ScratchJr programming language and KIBO robotics kits, both intended for young children in STEM programs. Now head of the DevTech research group at Boston College, she continues to design learning technologies that promote computational thinking and cultivate a culture of engineering in kids.

What was the inspiration behind creating ScratchJr and the KIBO robot kits?

Marina Umaschi Bers: We want little kids—as they learn how to read and write, which are traditional literacies—to learn new literacies, such as how to code. To make that happen, we need to create child-friendly interfaces that are developmentally appropriate for their age, so they learn how to express themselves through computer programming.

How has the process of invention changed since you developed these technologies?

Bers: Now, with the maker culture, it’s a lot cheaper and easier to prototype things. And there’s more understanding that kids can be our partners as researchers and user-testers. They are not passive entities but active in expressing their needs and helping develop inventions that fit their goals.

What should people creating new technologies for kids keep in mind?

Bers: Not all kids are the same. You really need to look at the age of the kids. Try to understand developmentally where these children are in terms of their cognitive, social, emotional development. So when you’re designing, you’re designing not just for a user, but you’re designing for a whole human being.

The other thing is that in order to learn, children need to have fun. But they have fun by really being pushed to explore and create and make new things that are personally meaningful. So you need open-ended environments that allow children to explore and express themselves.

The KIBO kits teach kids robotics coding in a playful and screen-free way. KinderLab Robotics

How can coding and learning about robots bring out the inner inventors in kids?

Bers: I use the words “coding playground.” In a playground, children are inventing games all the time. They are inventing situations, they’re doing pretend play, they’re making things. So if we’re thinking of that as a metaphor when children are coding, it’s a platform for them to create, to make characters, to create stories, to make anything they want. In this idea of the coding playground, creativity is welcome—not just “follow what the teacher says” but let children invent their own projects.

What do you hope for in terms of the next generation of technologies for kids?

Bers: I hope we would see a lot more technologies that are outside. Right now, one of our projects is called Smart Playground [a project that will incorporate motors, sensors, and other devices into playgrounds to bolster computational thinking through play]. Children are able to use their bodies and run around and interact with others. It’s kind of getting away from the one-on-one relationship with the screen. Instead, technology is really going to augment the possibilities of people to interact with other people, and use their whole bodies, much of their brains, and their hands. These technologies will allow children to explore a little bit more of what it means to be human and what’s unique about us.

This article appears in the November 2024 print issue as “The Kids’ Inventor.”

Unknown host Charlie Stone analyzes Trump's unprecedented victory with Obama Homeland Security Secretary, Jeh Johnson

To restore the rule of law, Trump's Department of Justice must investigate those who subverted our constitutional order.

The Biden administration passed $3 trillion of legislation aimed at revitalizing the American economy and fostering green, equitable, "middle-out" growth.

Although I am loath to use the phrase, I don't think it's remiss to call Donald Trump's victory last week a vibeshift.

The woke and overcommitted military of the last couple decades has had a hard time recruiting. We are ripe for a change.

Upon further review, analyst Sean Trend may be right: There may be an emerging GOP majority nationwide.

From Goats to airplanes, Xbox Game Pass has another bumper month in store for subscribers. Here's everything you need to know about what is heading to PC and console this November 2024

Destiny 2's Exotic vendor, Xur, is back again this week. Here's how to find him, what he's selling, and whether we recommend his offerings before he vanishes again.

EA FC 25 players can snag some big freebies this week, with EA Sports celebrating the Ballon d'Or in style for all Ultimate Team players with some of the best players around.

Black Ops 6 is here, and fans have been itching to know what's included in Season 1 - and now we have an answer. Here's what's included, and when you can play

PS5 owners can play some great games this month, including a Bethesda hit and more. Here's what's free for PS Plus subscribers for November, with more to be announced.

Comet Nishimura (C/2023 P1) was discovered in August and is now whizzing by Earth, but finding it in the sky will be a challenge.

NASA said Thursday that the study of UFOs will require new scientific techniques, including advanced satellites as well as a shift in how unexplained sightings are perceived.

Two large grizzly bears followed 13 hikers down a trail in Banff National Park for 20 minutes — with one even making a few quick runs at the group.

Researchers calculated that if 30 per cent of vehicles in Chicago currently running on combustion engines were converted to electric, the reduction in pollution would save billions in health care costs every year. 

Scientists have recreated the scent of the embalming fluid used to preserve a noblewoman more than 3,500 years ago — and they say it's quite lovely, indeed.

A pediatrician, author and co-inventor of a low-cost COVID-19 vaccine warns that the anti-vaccine movement has morphed into a political force that threatens the world's gains against deadly childhood infections like measles.

The Tablelands in Gros Morne National Park, a UNESCO World Heritage Site, is one of the most unique landscapes in the world — and its orange peridotite rocks could hold the secret to finding life on Mars.

President-elect Donald Trump vowed on his first day in office to sign an executive order that seeks to end birthright citizenship for the children of illegal immigrants and kick-start the largest deportation effort in the nation's history.

Unidentified Anomalous Phenomena -- that's UAPs for short -- are the centerpiece of a hearing Wednesday co-conducted by the two subcommittees of the House Oversight and Accountability Committee. The joint hearing is titled "Unidentified Anomalous Phenomena: Exposing the Truth."

President-elect Donald Trump has chosen lawyer Willian McGinley to serve as his White House counsel.

A new Government Accountability Office report says that the Justice Department kept FBI employees in the dark for seven years after Congress updated whistleblower protections for bureau personnel in 2016.

A judge recused himself Tuesday from presiding over Arizona's fake electors case after an email surfaced in which he told fellow judges to speak out against attacks on Democratic Vice President Kamala Harris' campaign for the presidency.

The Massimo Modular E9 is a sleek, smart and comfy tiny home in 409 square feet. Tech expert Kurt “CyberGuy" Knutsson takes a closer look at what the future of housing might look like.

An updated Android trojan called FakeCall hijacks bank calls. Tech expert Kurt “CyberGuy" Knutsson says Android phone manufacturers and Google need to step up their game on security.

A virtual private network is a service that encrypts your internet connection, ensuring your online activity remains private and secure.

Kurt “CyberGuy" Knutsson discusses how Axiom Space and luxury designer Prada are collaborating on NASA's Artemis III spacesuit design.

Marin Cilic has experienced many great moments on court in recent years, but the 18-time tour-level titlist announced that he will enjoy a milestone moment off the court in 2020. Speaking to his 170,000 followers on Twitter, the Croat shared the news that he will become a father next year. The news comes just 18 months after Cilic married Kristina Milkovic in Dubrovnik. Cilic’s announcement was accompanied by a photo of the 31-year-old shopping for a pushchair. New ride ?? ?? Excited to share with you all that #teamCilic will be growing. New member joining us in 2020 ???????? pic.twitter.com/m0Qxn6AdQB — Marin Cilic (@cilic_marin) 7 October 2019 Cilic will compete at next week’s VTB Kremlin Cup in Moscow, where he will be aiming to achieve his 500th tour-level victory. If Cilic achieves the feat, he would become the 10th active player on the ATP Tour to reach that mark..

The other day, I was wondering to myself: “What ever happened to the guy who made Hammerfight? I liked that game.” Hammerfight, released in 2009 by Russian game-maker Konstantin Koshutin, is an action game about piloting flying vehicles armed with medieval weapons like hammers, maces, flails, and swords as well as the occasional long-range cannon. […]

A Good Bundle is a rag-tag alliance of a great many indie game devs, from big dogs to folks with one smallish title to their name. It’s a game bundle, sure, but it’s not your typical bundle. There are 151 games (& tools) by 115 devs in here, and it’s all for charity: split 50/50 […]