Optical Metasurfaces: A new lens technology is primed to jumpstart phone cameras by eliminating need for multi element lenses

Date Published: Sat, 6 Feb 2021 17:45:37 +0200

A new company called Metalenz, which emerges from stealth mode today, is looking to disrupt smartphone cameras with a single, flat lens system that utilizes a technology called optical metasurfaces. A camera built around this new lens tech can produce an image of the same if not better quality as traditional lenses, collect more light for brighter photos, and can even enable new forms of sensing in phones, all while taking up less space.

Devlin says the applications for Metalenz reach beyond smartphones. The technology can be used in everything from instruments for health care to augmented- and virtual-reality cameras, to the cameras in automobiles.

See A new lens technology is primed to jumpstart phone cameras

#technology #mobile #photography

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Smartphone optics have been pretty much the same for more than a decade.

New quantum receiver the first to detect entire radio frequency spectrum from zero frequency up to 20 GHz

Date Published: Sat, 6 Feb 2021 13:34:17 +0200

The Rydberg spectrum analyzer has the potential to surpass fundamental limitations of traditional electronics in sensitivity, bandwidth and frequency range. Because of this, the lab's Rydberg spectrum analyzer and other quantum sensors have the potential to unlock a new frontier of Army sensors for spectrum awareness, electronic warfare, sensing and communications—part of the Army's modernization strategy.

See New quantum receiver the first to detect entire radio frequency spectrum

#technology #radio #RF

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A new quantum sensor can analyze the full spectrum of radio frequency and real-world signals, unleashing new potentials for soldier communications, spectrum awareness and electronic warfare.

Raspberry Pi used to add Android Auto and Reverse Cam to a 2002 Volvo S60

Date Published: Sat, 6 Feb 2021 10:56:31 +0200

As Luuk Esselbrugge explains in a recent blog post, his 2002 Volvo S60 had an optional GPS navigation system and backup camera that used a motorized display that would rise out of the dashboard when needed. His particular car didn’t come with the hardware installed, but after getting his hands on a display module and doing some research, he figured out how he could drive it with the Raspberry Pi and a couple of microcontrollers.

Just goes to show what is all possible using open source.

See Raspberry Pi Takes Over Volvo’s Integrated LCD

#technology #hack #volvo #opensource #vehicles

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As [Luuk Esselbrugge] explains in a recent blog post, his 2002 Volvo S60 had an optional GPS navigation system and backup camera that used a motorized display that would rise out of the dashboard w…

Apple Watch can help track Parkinson’s disease symptoms, published research shows

Date Published: Fri, 5 Feb 2021 12:09:17 +0200

Researchers at Apple, working with specialists who treat Parkinson’s, designed a system that uses the Apple Watch to detect the motor symptoms that are a hallmark of the neurological disease. By monitoring resting tremors and other involuntary movements, the researchers were able to identify the characteristic “on” and “off” patterns of medication’s effects. Their findings were published Wednesday in Science Translational Medicine.

The algorithms underlying the model were developed using data from a pilot study with 118 people in which researchers matched subject’s smartwatch data to a scoring system called MDS-UPDRS Part III, the gold standard by which motor symptoms of Parkinson’s are measured.

Not that I have Parkinson's disease, but I've finally decided to order an Apple Watch as I've been pretty impressed with what it is all able to do on the health diagnostics side.

See Apple Watch can help track Parkinson's disease symptoms, study shows

#technology #applewatch #parkingsonsdisease #health

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The system uses an Apple Watch accelerometer and gyroscope data to detect certain symptoms of Parkinson's and side effects of treatments.

Monash University research finds Bing and Ecosia delivered substantially more professionally produced news in the top 50 results compared with Google

Date Published: Wed, 3 Feb 2021 15:41:24 +0200

The director of the Climate Change Communication Research Hub, Associate Professor David Holmes, said the results demonstrated the importance of news media to search engines, with the top search terms clearly reflecting that people were trying to learn more about current affairs topics.

“It is in the interests of search engines to show news sites because that brings users who are in search of trusted and useful quality content,” he said. “These results suggest that Google’s competitors are well able to deliver that kind of professional content.”

Don't be fearful of change, sometimes you end up even better off. So experiment a little.

See Google's search engine not as good as its competitors for news, research finds

#technology #search #News

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Monash University research finds Bing and Ecosia delivered substantially more professionally produced news in the top 50 results compared with Google

10 Best Smartwatches with Built in ECG Sensors

Date Published: Wed, 3 Feb 2021 14:01:33 +0200

From a medical point of view, technology has taken a great place. This can help many individuals to get treatment on time and save their lives. The invention of smartwatches with ECG is taking the technology to the next level. Today, many smartwatch makers have opted for this technology and come up with smarter wearable gadgets that make individuals more fit.

Generally, all brands use the same technology of heart rate monitors or sensors such as PPG and LED that easily detect the blood flow and produce heart rate data.
But it's worth noting two important things: These devices don't replace a doctor or proper medical diagnosis, and everything that is not an Apple Watch does not necessarily run standard Android Wear OS. So do proper homework before making any assumptions.

See 10 Best Smartwatches with Built in ECG Sensors [2021] | SmartwatchSpace

#technology #smartwatch #ECG #health

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ECG smartwatches have an in built sensor for detecting ECG/EKG of a person. In this article we will review the best ecg smartwatches available in the market.

Why Battery Electric Vehicles Beat Hydrogen Electric Vehicles Without Breaking A Sweat, Although Hydrogen May Be Suited To Niche Applications

Date Published: Tue, 2 Feb 2021 13:01:32 +0200

I always try to remember hydrogen "powered" vehicles still have electric motors and the hydrogen must be converted to electricity. Hydrogen is also more difficult and costly to distribute / transport than plain electricity.

But hydrogen can be suited to depot type operations with many vehicles passing through that depot eg. a trucking route, buses, ferries, etc.
Hydrogen is just not very efficient or practical for vehicles that travel randomly all over the place.

See Chart: Why Battery Electric Vehicles Beat Hydrogen Electric Vehicles Without Breaking A Sweat

#environment #EV #hydrogen

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In case you haven't noticed lately, humans appear to have a difficult time learning lessons, even about simple things — like whether or not votes were counted accurately. We've known this for a long time here on CleanTechnica, because those of us who have been paying attention have noticed the unfortunate reality that misinformation doesn't

Google is shutting down its in-house Stadia game studio... Because Big Tech is not really dedicated to non-core Projects

Date Published: Tue, 2 Feb 2021 12:38:26 +0200

This is why I largely don't excited at all any more about announcements from Google, Microsoft and similar Big Tech about #MeToo products they announce as they generally seem to lose all interest after just a few short years. Google did it with Reader, Microsoft has done it numerous times with various messengers, and now they're trying it with Teams to know out Slack.

Have you ever noticed that the most innovation and dedication comes from CEO's who were the founders of a particular product or service? Their very survival depends on that one product, and it is generally a very good product to have got where it gets to, until it's bought out or a Big Tech comes along and tries to just smother them.

As I've pointed out in previous posts we need more interoperability so that diverse products can work together better and all flourish. You choose what you want to use or not, based on its merits. It reminds very much of some ERP solutions where a company like Oracle just sticks some stuff together, none of which are great products, but you've got an all-in-one, and you cannot swap any of it out for anything else.

See Google is shutting down its in-house Stadia game studio

#technology #interoperability #bigtech #stadia

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Google on Monday confirmed plans to shut down stadia’s internal game development division less than two years after launch.

This DIY project turns an iPod into a click wheel-powered Spotify player using a Raspberry Pi Zero

Date Published: Tue, 2 Feb 2021 12:22:08 +0200

Classic iPods have their fans, but they’re not built for the modern age of music streaming — except for this one, which has been turned into a Spotify player by tinkerer Guy Dupont. While it may look like an iPod from the outside, inside, it’s got a Raspberry Pi loaded with software custom-built by Dupont to interface with Spotify, while still keeping the classic iPod style. He calls it the sPot.

If you wanted to make one of these yourself, Dupont has posted all of the code you’ll need on GitHub. He also created a Hackaday page detailing the other software that’s needed to get Spotify working.

See This DIY project turns an iPod into a click wheel-powered Spotify player

#technology #opensource #hardware #audio

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This kind of project is music to my ears.

A really practical video guide to upgrading memory on older PCs

Date Published: Mon, 1 Feb 2021 22:19:38 +0200

This guide covers all the basics and explains what you need to consider for this essential upgrade for older computers. It's true that just maximising the memory and switching to a SSD hard drive will make a big difference. I often opt to use a SSD for booting and the OS, and keep the old hard drive for extra cheap storage or backups.

It is only a bit more complicated, and more expensive, to actually switch out the whole motherboard and CPU. The job described here is pretty easy with no real worries.

Watch at Old PC Upgrade #1: Options & RAM

#technology #hardware

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Upgrading a desktop PC -- assessing the possibilities, and then selecting and fitting more memory.The second episode in this series will post on February 7th...

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