MIT researchers have developed a portable desalination unit, weighing less than 10 kilograms, that can remove particles and salts to generate drinking water.
The suitcase-sized device, which requires less power to operate than a cell phone charger, can also be driven by a small, portable solar panel, which can be purchased online for around $50. It automatically generates drinking water that exceeds World Health Organization quality standards. The technology is packaged into a user-friendly device that runs with the push of one button.
Unlike other portable desalination units that require water to pass through filters, this device utilizes electrical power to remove particles from drinking water. Eliminating the need for replacement filters greatly reduces the long-term maintenance requirements.
Engineers at MIT have developed an ultra-thin speaker that could be used to make entire surfaces produce sound. The unique design should be energy efficient and easy to produce at scale, the team says.
In a basic sense, speakers work by vibrating a membrane, which manipulates the air above it to produce sound waves. In speakers commonly found in audio systems or headphones, that’s done using electrical currents and magnetic fields.
But in recent years scientists have developed ways to achieve similar results in much slimmer devices. Thin film speakers work using piezoelectric materials, which vibrate in response to the application of a voltage. These have been used in phones and TVs, and even experimentally to create speakers out of things as unusual as flags.
This new innovative can lead to near infinite computation speeds without the need for complex components and it can put on a smartphone. Also it requires less hardware and weight.
Light is the most energy-efficient way of moving information. Yet, light shows one big limitation: it is difficult to store. As a matter of fact, data centers rely primarily on magnetic hard drives. However, in these hard drives, information is transferred at an energy cost that is nowadays exploding. Researchers of the Institute of Photonic Integration of the Eindhoven University of Technology (TU/e) have developed a ‘hybrid technology’ which shows the advantages of both light and magnetic hard drives.
In 2010, Apple software engineer Gray Powell left a in a bar in Redwood City, California. In an era where nearly every device leaks before it’s officially announced, images of a new iPhone showing up online seem quaint. But at the time it was a big deal and the incident even came to. Now, more than a decade later, images of another highly anticipated device have made their way online in much the same way.
On Saturday evening, Android Central photos of Google’s long-rumored Pixel Watch. The outlet says it obtained the images you see throughout this post from someone who found the smartwatch at a restaurant in the US. The photos confirm the Pixel Watch will feature a circular face with minimal display bezels. If you look closely, you can see the wearable’s band attaches directly to its case, with a latch mechanism that looks proprietary to Google and reminiscent of the design employed by Fitbit on its Versa and Sense smartwatches (Google the company in 2021).
The watch features a single button next to its crown and what looks like a microphone or altimeter port. On the back of the device, you can see an optical heartrate sensor. Unfortunately, the watch wouldn’t go beyond its boot screen so there are no photos of it running.
Over the course of almost 60 years, the information age has given the world the internet, smart phones, and lightning-fast computers. This has been made possible by about doubling the number of transistors that can be packed onto a computer chip every two years, resulting in billions of atomic-scale transistors that can fit on a fingernail-sized device. Even individual atoms may be observed and counted within such “atomic scale” lengths.
Physical limit
With this doubling reaching its physical limit, the U.S. Department of Energy’s (DOE) Princeton Plasma Physics Laboratory (PPPL) has joined industry efforts to prolong the process and find new techniques to make ever-more powerful, efficient, and cost-effective chips. In the first PPPL research conducted under a Cooperative Research and Development Agreement (CRADA) with Lam Research Corp., a global producer of chip-making equipment, laboratory scientists properly predicted a fundamental phase in atomic-scale chip production through the use of modeling.
“Britain moves closer to a self-driving revolution,” said a perky message from the Department for Transport that popped into my inbox on Wednesday morning. The purpose of the message was to let us know that the government is changing the Highway Code to “ensure the first self-driving vehicles are introduced safely on UK roads” and to “clarify drivers’ responsibilities in self-driving vehicles, including when a driver must be ready to take back control”.
The changes will specify that while travelling in self-driving mode, motorists must be ready to resume control in a timely way if they are prompted to, such as when they approach motorway exits. They also signal a puzzling change to current regulations, allowing drivers “to view content that is not related to driving on built-in display screens while the self-driving vehicle is in control”. So you could watch Gardeners’ World on iPlayer, but not YouTube videos of F1 races? Reassuringly, though, it will still be illegal to use mobile phones in self-driving mode, “given the greater risk they pose in distracting drivers as shown in research”.
Way back in 2015, Apple released its very first app in the Google Play Store. It was called Move to iOS, and it helped people switch from Google’s platform to Apple’s. Turnabout is fair play, and Google has finally made its own switching app. With the predictable name “Switch To Android,” the app helps iPhone owners export their data for use on an Android phone. The app rolled out today in several markets, including the US, but it might be hard to find.
The current mobile dichotomy has been in place for over a decade at this point. Upstarts like Palm and Windows Phone tried and failed to create a third platform, but instead we’ve all become more entrenched with Android and iOS. After years and years using one platform, it can be imposing to move it someplace else. Apps like Apple’s Move to iOS and the new Switch To Android can make it a bit easier by automating the process, or at least pointing you to the right settings.
After installing the Switch To Android app on an iPhone, you’ll have the option to grab the basics like your contacts, calendar events, photos, and videos. Most of this data should plug into Google’s ecosystem without issue. You might notice some strange errors in contact data, but the app connects to Google Photos to salvage all your iCloud media. This all happens wirelessly, so you won’t have to worry about finding a cable to connect your Android phone’s USB-C port to the aging Lightning port on even the latest iPhones.
In the future, smart clothing might monitor our posture, communicate with smartphones and manage our body temperature. But first, scientists need to find a way to cost-effectively print intricate, flexible and durable circuits onto a variety of fabrics. Now, researchers reporting in ACS Applied Materials & Interfaces have developed a conductive 3D printing ink made of liquid metal droplets coated with alginate, a polymer derived from algae.
Conventional electronics are rigid and unable to withstand the twisting and stretching motions that clothing undergoes during typical daily activities. Because of their fluid nature and excellent conductivity, gallium-based liquid metals (LMs) are promising materials for flexible electronics. However, LMs don’t stick well to fabrics, and their large surface tension causes them to ball up during 3D printing, rather than form continuous circuits. Yong He and colleagues wanted to develop a new type of conductive ink that could be 3D printed directly onto clothing in complex patterns.
To make their ink, the researchers mixed LM and alginate. Stirring the solution and removing the excess liquid resulted in LM microdroplets coated with an alginate microgel shell. The ink was very thick until it was squeezed through a nozzle for 3D printing, which broke hydrogen bonds in the microgel and made it more fluid. Once the ink reached the fabric surface, the hydrogen bonds reformed, causing the printed pattern to maintain its shape. The team 3D printed the new ink onto a variety of surfaces, including paper, polyester fabrics, nonwoven fabrics and acrylic-based tape. Although the printed patterns were not initially conductive, the researchers activated them by stretching, pressing or freezing, which ruptured the dried alginate networks to connect the LM microdroplets.
