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Apple's MacBook air is the thin and light notebook to own if you're looking for the best mix of small size and performance, but the more desirable 512GB version is fairly expensive at $1,499. Fortunately, you can now grab that model Amazon for just $1,349 for a significant savings of $150 (10 percent) — the lowest price we've seen to date. And if you don't need that much space, the 256GB model is also on sale

With a 96 score on our Engadget review, the MacBook Air M2 is one of the best laptops we've ever test. For the first time since launch, Apple changed the design from a wedge to a uniformly thin form, making it not only thinner overall but more balanced. In fact, at 11.3 millimeters and 2.7 pounds, it weighs less than an iPad Pro with its smart keyboard. 

The 2,560 x 1,664 Liquid Retina screen is also slightly larger at 13.6 inches, thanks to the bezels and the webcam tucked into the screen notch up top. You also get improved speakers, a Magsafe power adapter and a pair of USB-C ports with support for charging, external monitors and data transfers up to 40Gbps. The M2 processor significantly boosts performance over the Air M1, offering performance nearly comparable to the 13-inch MacBook Pro M2. It starts rapidly, loads apps quickly and offers snappy performance across the board. 

The 512GB version is more desirable not only because of the extra space, but the faster SSD performance than the base model — and the $1,349 price tag is the lowest we've seen yet. If that's still not in your budget, the 256GB model is on sale at $1,099 for a savings of $100 (8 percent) — also an all-time low price.

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If you work in a noisy environment or travel a lot, high-quality noise cancelling headphones can be a godsend. One of the best of those is the Bose QuietComfort 45 wireless ANC headphones, and they're now on sale at close to an all-time low on Amazon. You can pick them up in either black or white for $249, for a savings of $80 off the regular price. 

The QuietComfort 45 earned a strong Engadget review score thanks in part to the excellent sound quality. It offers crisp highs, robust mids and deep bass when a song demands it. The tuning is more neutral than other models, so bass is not booming but exactly as it was intended to be. At the same time, the active noise cancellation is highly effective in a wide range of environments like a train, office or coffee shop. It can even handle things like TVs, voices and similar distractions that other headphones struggle with.

It also comes with handy onboard controls for playing/pausing music, adjusting volume and switching between ANC and ambient sound mode. They charge via USB-C and have an impressive 22.5-hour battery life, so you can wear them all day long without missing a beat.

The only downsides are a less-than-sleek design and the lack of automated pausing seen on rival headphones like the Sony's WH-1000XM4. Also, their multi-device connectivity can be a bit finicky because they don't automatically reconnect to a second device after you take a call. But otherwise, the QC45 are excellent ANC headphones, and this is one of the lowest prices we've seen to date. 

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There are plenty of robots that say they can vacuum and mop your floors, but never to anyone’s satisfaction. With some, you have to futz with the system to add the mop halfway through, others it’ll drag the dirty pad across your clean carpets and rugs. It’s a problem that iRobot has spent plenty of engineering resources trying to solve, saying that the new Combo j7+ is the solution. Co-founder and CEO Colin Angle describes it as the “first legitimate 2-in-1 vacuuming and mopping robot ever created.”

Instead of requiring a user to make changes partway through a mission, the j7+ has a standard vacuum body up top. When it’s finished, however, a pair of recessed arms pull down a mop pad that’s housed in the top of the chassis down to the floor. From there, it’ll drag the pad along your hard floors, before pushing it back away if and when it has to cross carpet. All a user has to do is change the bag and refill the water, which could take up to 60 days at a time.

iRobot

Angle and iRobot’s product manager Praj Shyamkant said that the plan was to ensure that the mop would never, ever, come into contact with your soft surfaces. And that users could expect the device to do what you should expect from its description without any micromanagement. Given that the unit sits on the same footprint as the standard (poop-detecting) j7, it required a lot of engineering nous to shrink all of the fancy new gear into its body, too.

At the same time, iRobot wanted to show off the power of its new iRobot OS 5.0, its latest and greatest operating system. This is includes better integration with home and phone assistants like Siri and Alexa, the ability to denote more clean zones for extra attention and better hazard avoidance. You can also amend mission plans on the fly, banishing your Roomba from a room where you’re about to take a Zoom call, for instance. iRobot also wanted to affirm its pledge to protect user data, never to sell it on to third parties, and that it’s secured a TÜV SÜD Cyber Security certification for its data hygiene.

The Roomba Combo j7+ is available for pre-order today, and will cost $1,099 in the US, with shipments due to begin October 4th. It’ll be available in the UK for £999, but you can also pick up a version without the Clean Base for £799, while other countries can expect it to appear through the rest of Q4, 2022.

Having a 3D printer or a CNC machine available for projects is almost like magic. Designing parts in software and having them appear on the workbench is definitely a luxury. But for a lot of us, these tools aren’t easily available and projects that use them can be out-of-reach. That’s why one of the major design goals of this robotics platform was to use as many off-the-shelf components as possible.

The robot is called the OpenScout and, as its name implies, intends to be a fully open-source robotics platform for a wide range of use cases. It uses readily-available aluminum extrusion as a frame, which bolts together without any other specialized tools like welders. The body of the robot is articulating, helping it navigate uneven terrain outdoors. The specifications also call for using an Arduino to drive the robot, although there is plenty of space in the robot body to house any robotics platform you happen to have on hand.

For anyone looking to get right into the useful work of what robots can do, rather than spending time building up a platform from scratch, this is an excellent project. It’s straightforward and easy to build without many specialized tools. The unique articulating body design should make it effective in plenty of environments. If you do have a 3D printer, though, that opens up a lot of options for robotics platforms.

After nearly a year in transit, NASA's experimental Double Asteroid Redirection Test (DART) mission, which sought to answer the questions, "Could you potentially shove a asteroid off its planet-killing trajectory by hitting it with a specially designed satellite? How about several?" has successfully collided with the Dimorphos asteroid. Results and data from the collision are still coming in but NASA ground control confirms that the DART impact vehicle has intercepted the target asteroid. Yes, granted, Dimorphos is roughly the size of an American football stadium but space is both very large and very dark, and both asteroid and spacecraft were moving quite fast at the time.

NASA launched the DART mission in November, 2021 in an effort to explore the use of defensive satellites as a means of planetary defense against Near Earth Objects. The vending machine-sized DART impactor vehicle was travelling at roughly 14,000 MPH when it fatally crossed Dimorphos' path nearly 68 million miles away from Earth. Dimorphos itself is the smaller of a pair of gravitationally-entangled asteroids — its parent rock is more than five times as large. 

Developing...    

The Apple Watch Ultra is built to survive outdoors adventures, but you'll want to forget about repairing it yourself if you take a tumble. iFixit has completed a video teardown indicating that the Ultra isn't significantly more repairable than its regular counterparts. While there are external screws on the back, you're going to wreck a waterproofing gasket if you pry the rear open. And don't even think of getting through the front — it's difficult to avoid breaking the screen, at least without special tools.

It's also tricky to access the battery and other components. The teardown also illustrates just how much larger the speaker array is on the Apple Watch Ultra compared to the Series 8. Even if you're unlikely to ever use the siren feature those speakers are meant for, it should help with call quality and other audio-driven apps.

This isn't the advancement in fix-it-yourself friendliness you saw in the base iPhone 14, then. You'll need to take this to a pro repair shop if you land badly during a hike. Even so, iFixit is optimistic the Watch Ultra represents a path toward more repairable Apple wristwear. While it's not clear if future smartwatches will make that leap, it won't be shocking given mounting political pressure on the tech industry to create more easily maintained devices.

Meta is testing two features that integrate Facebook and Instagram more closely together. On Monday, the company began rolling out a new interface on Android, iOS and on the web for switching between accounts. Provided you’ve added your Facebook and Instagram credentials to the same Accounts Center, you can use the feature to switch between the two apps without navigating to your phone’s home screen, multitasking menu or app drawer. The interface also allows you to see a count of all your notifications in one place.

At the same time, Meta is introducing a redesigned login and onboarding experience on Android and iOS. If you’re new to the company’s social networks, you can create one account and then use it to create additional ones. For those who already have both Facebook and Instagram accounts, it’s now possible to use the login information associated with one app to access the other – though you first need to add them to the same Accounts Center.

Meta

Meta will notify you every time you use an existing account to create a new one or you add an account to the Accounts Center. Additionally, security features like two-factor authentication will still work, preventing, for instance, someone from using your Instagram credentials to access your Facebook account.

While the new features are “currently limited to Facebook and Instagram,” Meta notes it will “continue to explore how to improve connected experiences across all of our technologies.” They arrive following the debut of Meta accounts in August and a recent downturn in both revenue and user growth for the company.

If you’re looking to add some digital smarts to your bedroom without buying a device that features a camera, smart clocks are the way to go. One of the better options out there is the Lenovo Smart Clock Essential with Alexa, and it’s currently on sale. Lenovo has discounted the device by 50 percent, making it $35 at the moment. We’ve seen the Smart Clock Essential go on sale frequently in the past. However, $35 matches an all-time low for the device.

Lenovo released the Smart Clock Essential with Alexa earlier this year. The main addition the new model introduced was support for Amazon’s digital assistant instead of its Google counterpart. Along the top, you’ll find four buttons for volume control, activating Alexa and setting an alarm. The front of the Smart Clock features a dedicated 4-inch LED screen that displays the time, weather, ambient noise level and other information. What the device doesn’t include is a camera. You also can’t use the display to stream video. The Smart Clock Essential is available in two colors: Misty Blue and Clay Red. Both are discounted as part of the current sale.    

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Aphex Twin is finally ready to offer his mutation-driven music software to the world. Pitchforknotes Aphex Twin (aka Richard James) and engineer Dave Griffiths have released Samplebrain, a free "sample mashing" app that turns audio files from your computer into sample blocks you can use for projects. You can recreate a sample using tracks in your music library, or craft a "303 riff" from unexpected sounds.

The app is available in ready-to-use versions for Mac and Windows computers. You can build a Linux-friendly edition as well. As Pitchfork warns, you may need some technical know-how to use the app — this isn't for rookie musicians.

Samplebrain has been a long time coming, to put it mildly. James said he first envisioned the app in 2002, back when Drukqs was his latest release. He revealed that he'd hired an engineer to work on the software in 2014 (when he returned to music with Syro), but didn't say much else until now. There's a good reason for that, apparently. James and Griffiths realized the project became "slightly out of control" as they added more and more parameters, and James admitted he hasn't had much time to "explore [Samplebrain] properly." This is a bid to finally put the tool in creators' hands, even if it's in a rough form.