Last December’s Issue 8-25 had an article about the first tests of the SpinLaunch system for substituting a centrifuge spinning mechanism to hurl light-weight satellites into sub-orbit.

Now, NASA has said they are going to test SpinLaunch’s unusual launch technology. Rather than use a first stage rocket to get the launch vehicle out of our atmosphere, SpinLaunch uses an electric centrifuge to hurl the payload like a discus.

While the company’s kinetic launch system is unusual, it has the potential to affect positively both the environment and the cost. But it isn’t for all launches. Obviously, no one is suggesting its use for manned missions or super-heavy payloads.

The company says that SpinLaunch is ideal for any launch vehicle weighing in at under 440 pounds. The key is ruggedizing the packaging so it can take the punishment of 10,000 G force and being released at a speed of over six times the speed of sound (around 5,000 mph.) Once the vehicle is released, a second-stage rocket can take over and provide the power to get the package into orbit.

To quantify the benefits of the SpinLaunch approach, the company says that they can save up to 70% of the fuel by eliminating the first-stage rocket and that also means no need for the expensive launch structures needed with traditional launches. In essence, hurling the vehicle will use a quarter of the fuel at a tenth of the price!

NASA’s interest has led them to sign a Space Act agreement with SpinLaunch to develop and integrate a NASA payload for a slower sub-orbital launch. The payload will take measurements which will be analyzed by both NASA and the company. They are planning this first test for later this year. SpinLaunch is working on a timetable for a first orbital launch in 2025.

“SpinLaunch is offering a unique suborbital flight and high-speed testing service, and the recent launch agreement with NASA marks a key inflection point as SpinLaunch shifts focus from technology development to commercial offerings,” said SpinLaunch Founder and CEO Jonathan Yaney in a press release. “What started as an innovative idea to make space more accessible has materialized into a technically mature and game-changing approach to launch. We look forward to announcing more partners and customers soon and greatly appreciate NASA’s continued interest and support in SpinLaunch.”
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SpinLaunch has developed a render video on YouTube showing how this remarkable system will work.

Physicists from the University of Arkansas have successfully developed a circuit capable of capturing graphene's thermal motion and converting it into an electrical current.

“An energy-harvesting circuit based on graphene could be incorporated into a chip to provide clean, limitless, low-voltage power for small devices or sensors,” said Paul Thibado, professor of physics and lead researcher in the discovery.

The findings, titled "Fluctuation-induced current from freestanding graphene," and published in the journal Physical Review E, are proof of a theory the physicists developed at the U of A three years ago that freestanding graphene—a single layer of carbon atoms—ripples and buckles in a way that holds promise for energy harvesting.

The idea of harvesting energy from graphene is controversial because it refutes physicist Richard Feynman’s well-known assertion that the thermal motion of atoms, known as Brownian motion, cannot do work. Thibado’s team found that, at room temperature, the thermal motion of graphene does, in fact, induce an alternating current (AC) in a circuit, an achievement thought to be impossible. 

In the 1950s, physicist Léon Brillouin published a landmark paper refuting the idea that adding a single diode, a one-way electrical gate, to a circuit solves harvesting energy from Brownian motion. Knowing this, Thibado’s group built their circuit with two diodes for converting AC into a direct current (DC). With the diodes in opposition allowing the current to flow both ways, they provide separate paths through the circuit, producing a pulsing DC current that performs work on a load resistor.

They also discovered that their design increased the amount of power delivered. “We also found that the on-off, switch-like behavior of the diodes actually amplifies the power delivered, rather than reducing it, as previously thought,” said Thibado. “The rate of change in resistance provided by the diodes adds an extra factor to the power.” 

The team used a relatively new field of physics to prove the diodes increased the circuit’s power. “In proving this power enhancement, we drew from the emergent field of stochastic thermodynamics and extended the nearly century-old, celebrated theory of Nyquist,” said coauthor Pradeep Kumar, associate professor of physics and coauthor. 

According to Kumar, the graphene and circuit share a symbiotic relationship. Though the thermal environment is performing work on the load resistor, the graphene and circuit are at the same temperature and heat does not flow between the two.

That’s an important distinction, said Thibado, because a temperature difference between the graphene and circuit, in a circuit producing power, would contradict the second law of thermodynamics. “This means that the second law of thermodynamics is not violated, nor is there any need to argue that ‘Maxwell’s Demon’ is separating hot and cold electrons,” Thibado said.

The team also discovered that the relatively slow motion of graphene induces current in the circuit at low frequencies, which is important from a technological perspective because electronics function more efficiently at lower frequencies. 

“People may think that current flowing in a resistor causes it to heat up, but the Brownian current does not. In fact, if no current was flowing, the resistor would cool down,” Thibado explained. “What we did was reroute the current in the circuit and transform it into something useful.” 
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The team’s next objective is to determine if the DC current can be stored in a capacitor for later use, a goal that requires miniaturizing the circuit and patterning it on a silicon wafer, or chip. If millions of these tiny circuits could be built on a 1-millimeter by 1-millimeter chip, they could serve as a low-power battery replacement.

Nobody enjoys getting the jab. Whether it's a standard shot, an epidural or dental injection, or a daily shot for needed medicine, the experience has created a class of phobias, with one Harvard study estimating that fear of needles affects up to 25% of adults. 

Despite so much innovation in other areas of medicine, the experience of getting a shot or injection hasn't really changed all that much in the last century. But thankfully new technologies are finally catching on and changing how people think about needles, and the technology is being embraced readily by providers.

"Our injection technologies serving the dental and epidural community have been growing," says Arjan Haverhals, CEO of Milestone Scientific, which has pioneered a computer-controlled injection technology that guides the injection below the patient's pain threshold, making injections precise, efficient, and virtually painless. "We have a growing number of hospitals embracing our technology. We’ve also entered the private pain clinic market to treat chronic back pain. Our dental delivery system, which is available nationwide and in Canada, has seen growing interest from all dental professionals worldwide."

A handful of technology innovators like Milestone Scientific are bent on improving the jab through wearables, computer guidance, and needle-free injection technologies. 

Portal Instruments, an MIT spinoff, is another player in the space. The company is bringing a needle-free injection device to market that delivers a rapid, high-pressure stream of medicine, as thin as a strand of hair, through the skin in adjustable dosages, causing little to no pain. A connected app tracks each dose and the medicine's effects and uploads that information to the cloud, for patients and doctors. The device would be sold as a drug-device combination product to medical professionals and provided to patients with a prescription.

Enable Injection designs, manufactures, and sells wearable delivery devices for injectable drugs. Patients attach the device onto the skin by themselves, and trigger needle insertion and retraction by pressing a button on the device. Through a partnership with Flex, Enable also offers a version of the drug delivery platform that may connect to smartphones via Bluetooth. According to the company's website, the Enable Smart enFuse product could be "pre-integrated" into the digital health platform or strategy of an organization for improved patient data collection. 

It's little surprise there's so much activity around increasing outcomes and lowering pain associated with injections. Growth of the global injectable drug delivery devices market is expected to increase from $16 billion in 2019 to $21.3 billion in 2023, partly due to increased demand for injection devices that can be used and monitored in the home environment. Milestone, for one, has seen significant interest in the U.S, where epidural-specific systems are in place and trials underway in Florida, Michigan, Texas, South Carolina, Illinois, and Massachusetts, to name a few. The Dental delivery system is used widely throughout the country with growing interest from specialty practices including periodontic, cosmetic, and pediatric. 

"For medical, this means healthcare outcome for patients at lower costs. For dental, it means pain-free injections, more comfort, and less fear for patients," says Haverhals, "plus the ability for additional business for dentists. In fact, many of our dentists have noted word-of-mouth as a marketing tool for growing their business just by adopting our injection technology."

Predictions indicate that a nanometer-sized wave-based computer could solve equations in a fraction of the time of their larger, electronic counterparts.  
Booting up your laptop may seem like an instantaneous process, but in reality, it’s an intricate dance of signals being converted from analog waveforms to digital bytes to photons that deliver information to our retinas. For most computer uses, this conversion time has no impact. But for supercomputers crunching reams of data, it can create a serious, energy-consuming slowdown. Researchers are looking to solve this problem using analog, wave-based computers, which operate solely using light waves and can perform calculations faster and with less energy. Now, Heedong Goh and Andrea Alù from the Advanced Science Research Center at the City University of New York present the design for a nano-sized wave-based computer that can solve mathematical problems, such as integro-differential equations, at the speed of light.
One route that researchers have taken to make wave-based analog computers is to design them into metamaterials, materials engineered to apply mathematical operations to incident light waves. Previous designs used large-area metamaterials—up to two square feet ( ∼0.2 m2)—limiting their scalability. Goh and Alù have been able to scale down these structures to the nanoscale, a length scale suited for integration and scalability.
The duo’s proposed computer is made from silicon and is crafted in a complex geometrical nanoshape that is optimized for a given problem. Light is shone onto the computer, encoding the input, and the computer then encodes the solution to the problem onto the light it scatters. For example, the duo finds that a warped-trefoil structure can provide solutions to an integral equation known as the Fredholm equation.
Goh and Alù’s calculations show that their nano-sized wave-based computers should be able to solve problems with near-zero processing delay and with negligible energy consumption.

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Engineers from Yale University have developed a wearable device that can help individuals assess whether they have been exposed to SARS-CoV-2, the coronavirus that causes COVID-19. The cheap device can clip onto a person’s clothes and capture aerosolized viral particles in the surrounding environment.

From rapid tests to vaccines, many extraordinary innovations have helped us navigate this global pandemic. While we have several ways to determine whether a person has been infected with SARS-CoV-2, we still can only guess when and how someone has been exposed to the virus.

This innovation from a team of Yale University researchers is hoping to fill that surveillance gap. Called the Fresh Air Clip, the device is cheap, designed to attach to a person’s collar and capture aerosolized viral particles around a person’s mouth and nose.

The clip captures viral particles on a polydimethylsiloxane (PDMS) surface. At the end of a day, or several days, a wearer removes the clip and sends it to a lab, which uses polymerase chain reaction (PCR) analysis to determine the presence of SARS-CoV-2.

A new study is reporting on several tests of the Fresh Air Clip establishing it can effectively capture airborne viral particles. One experiment involved supplying the clips to several volunteers who wore the monitors for up to five days. Of the 62 monitors deployed, five returned positive results, showing exposure to SARS-CoV-2.

“Of the positive Fresh Air Clips, four were worn by restaurant servers and one was worn by a homeless shelter staff person,” the study shows. “Notably, two positive samples collected in restaurants with indoor dining were found to have high viral load when compared to the other samples (>100 copies per clip), suggestive of close contact with one or more infected individuals.”

As well as establishing the wearable monitor as being able to capture detectable levels of viral particles, the researchers note the device is sensitive enough to catch exposure events at sub infectious doses. This suggests the volume of viral particles picked up by the monitor allows for the quantification of environmental exposure to the virus. This is important, as it means the device does not simply offer an indication of viral exposure but a measure of the level of exposure.

Krystal Pollitt, a researcher working on the device, says one interesting potential use for the device could be to test the effectiveness of ventilation settings in COVID positive patient hospital rooms. Speaking to Yale News recently, Pollitt said her team found airborne traces of SARS-CoV-2 in hospital rooms that were thought to be well ventilated.

“We found this to be really interesting because we know that one of the infection control measures that is being highly recommended is enhanced ventilation,” said Pollitt. “Within the hospital network we had very high air change rates. Despite having those high air change rates, we could still detect airborne levels across the room.”

In its current form, the Fresh Air Clip can screen indoor environments and establish whether they are high-risk areas for exposure. Pollitt also said the wearable can also be used to identify indoor exposure events days before positive cases appear.

“The Fresh Air Clip can be useful for early identification of exposure events and allow for rapid action to be taken,” Pollitt said. “Exposed individuals can get tested or quarantine to prevent potential community transmission.”

The next big step for the device will be to develop ways for the monitor to offer real-time notification of viral exposure, in much the same way a radiation strip can immediately notify a wearer they are exposed to gamma or x-rays. Pollitt says she is interested in further developing the device with real-time exposure notifications.
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“It’s key to report back results quick,” Pollitt says. “We are keen to incorporate techniques for real-time SARS-CoV-2 detection.”
The new study was published in the journal Environmental Science & Technology Letters.

Besides being one of the most powerful computers in the world and currently ranked 105 on the Top500 list, France's Jean Zay supercomputer is now the first HPC to have a photonic coprocessor.

Unlike traditional processors which use electric current, LightOn’s photonic coprocessor transmits and processes information using light. The company's photonics coprocessor was added to the Jean Zay supercomputer under a pilot program and represents not only a technological breakthrough but also a first for the industry.

So far, LightOn’s technology has successfully been used by a community of researchers since 2018. 

Now though, its photonic coprocessor will be available to select users of the Jean Zay research community over the next few months who will use the device to conduct research on machine learning foundations, differential privacy, satellite imaging analysis and natural language processing (NLP) tasks.

LightOn Photonic Co-processor. LightOn's Optical Processing Unit (OPU) uses photonics to speed up randomized algorithms at a very large scale. However, it also works in tandem with standard silicon CPUs and Nvidia's A100 GPU technology.

The company's Aurora 2 OPU powers its Appliance integrated computing unit which is built i so that it can be quickly and easily integrated in data centers or in this case, a supercomputer. According to LightOn, its Appliance can reach a peak performance of 1.5 PetaOPS or 1.5 X 1,000,000,000,000,000 operations per second and can deliver performance that is 8 to 40 times higher than GPU-only acceleration, like normal mainframes.

CEO and co-founder of LightOn, Igor Carror provided further insight into the pilot program that saw its Appliance integrated into the Jean Zay supercomputer in a press release, saying:

“This pilot program integrating a new computing technology within one of the world’s Supercomputer would not have been possible without the particular commitment of visionary agencies such as GENCI and IDRIS/CNRS. Together with the emergence of Quantum Computing, this world premiere strengthens our view that the next step after exascale super-computing will be about hybrid computing.”

Several industry pundits saw the tall-screen trend coming—but they didn't know things would get this tall. PC monitors that are taller than they are wide have enjoyed a resurgence last year, as they provide more vertical space for taking in long documents, articles, spreadsheets, and social media and news feeds. But this 420×1920 monitor takes the tall-screen thing to new heights.

As spotted by Gizmodo, the screen comes from Elsonic, a sub-brand of Japanese company Nojima, which started off with LED bulbs but now makes TVs and other tech products. The product page for the tall monitor specifically highlights web browsing, Twitter, and browser games as use cases. 

The display is only 8.8 inches, so it would best serve as a portable, secondary or tertiary monitor. It charges via USB-C but can't output video through the port. The monitor relies on mini HDMI for its video signal. That gives it a little versatility in the sense that it can connect to things lacking USB-C. But with more PCs ditching HDMI, and the monitor already having a USB-C port right there, it feels like a missed opportunity.

Built like a New York City skyscraper, the EK-MD088 takes up minimal surface space. Its base is approximately 3.07×0.83 inches (78×21 mm), and it towers 9.76 inches (248 mm) into the sky. The display should make an easy portable monitor (assuming you can find a case to accommodate its dimensions), as it only weighs about 0.43 pounds (198 g). 

A 420×1920 resolution gives the TFT panel an aspect ratio of 7:32. A picture wasn't provided, but the stand is supposed to allow for landscape mode, too.

Elsonic's listing doesn't get into color capabilities but says the screen has a standard refresh rate of 60 Hz and a typical brightness of 300 nits. The screen has two buttons on the side that let you pick between six brightness settings.
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Currently, the monitor is only available in Japan. So if you’re really craving this type of unit, you may have to act as an importer to get it. It's expected to release in "early February," the product page says, for 14,800 yen, which is about $128.21.

Many readers of this newsletter know I spent four decades speaking to business, professional and academic audiences about the future of technology. In my research for material for Technology This Week, I found a marvelous lecture by former MIT professor Patrick Winston called "How to Speak." The lecture was posted on YouTube a few months after Winston's death in 2019 and has since been viewed just under 5 million times.

Winston, who taught at MIT for almost 50 years and was one of the school's most beloved professors, knew how to captivate an audience. His style wasn’t flashy, but it was extremely compelling—even more noteworthy when you consider he worked in the technical field of artificial intelligence.

If you invest an hour and watch the full lecture, and I highly recommend you do, you'll learn some invaluable tips that will make you not only a better speaker, but a better communicator. However, you'll also discover a priceless gem in the first five minutes of the talk, when Winston describes what he calls the "rule of engagement." It's a simple, non-negotiable policy, and it's only five words long. 

Winston's rule: When someone else is speaking:
                                                   "No laptops. No cell phones."

Although simple, this is a rule that almost no one today follows, and that makes it extremely valuable. Winston's rule of engagement is also a perfect example of emotional intelligence in real life: the ability to make emotions work for you, instead of against you.

Making a Better Listener. Winston explains the reasoning behind his rule of engagement. "Some people ask why [no laptops, no cell phones] is a rule of engagement," says Winston. "The answer is, we humans only have one language processor. And if your language processor is engaged, you're distracted. And worse yet, you distract the people around you—studies have shown that."

Back in the 1950s, psychologist Donald Broadbent proved a similar point by setting up subjects with headphones that were putting out two different messages at the same time, one to each ear. Afterwards, Broadbent tested the subjects on their ability to retain the information. 

What was Broadbent's conclusion? We can only listen to one voice at a time.

But how can the "no laptops, no cell phones" rule of engagement help you and your organization?

The Effect on Relationships. Nowadays, people are accustomed to respond to electronic messages immediately, and there's some good to that. When you respond quickly to others' messages, you provide information they need to move their work forward. Additionally, you show you value them.

However, in your efforts to respond quickly, you might also make a big mistake. By constantly checking your phone, even when you're in a meeting or conversation with others, you leave your conversation partner feeling that you aren't really "present"--and that you don’t care about them or the conversation. 

Just think of all the lost time in meetings in which someone repeats something that's already been said or goes off on a tangent because they were distracted and missed a key point.

True listening and collaboration require complete attention. And if you're speaking with another person, that person thought you were important enough to give you their time and attention. Why not return the honor?
You'd be surprised at the positive benefits these actions reap—and the depth and quality it adds to your relationships.

So, if you'd like to increase the quality of your meetings, conversations, and even your relationships, take a page out of Patrick Winston's playbook:
                                                   "No laptops. No cell phones."

​Because you can only listen to one voice at a time.

The first two prototype satellites from Project Kuiper, the internet-from-space venture from the e-commerce giant, are scheduled to launch in the fourth quarter of 2022, Amazon announced on earlier this month. That will formally kick off its competition with SpaceX, the space company owned by Elon Musk, and OneWeb, among other rivals, for beaming high-speed internet connections to customers from low-Earth orbit. It will also be a crucial test of the satellites’ design before the company launches thousands more devices into orbit.

Amazon first announced its goal of deploying a constellation of 3,236 satellites in low Earth orbit in 2019. This was the second pursuit in space by Jeff Bezos, Amazon’s founder and former chief executive who also owns Blue Origin, the rocket company. A handful of other firms are also racing to offer high-speed internet to governments, other companies and consumers whose access is hampered by the digital divide in remote locations.

Like SpaceX, Amazon plans to spend $10 billion on the project, which sits within its device’s unit. But the company has been slower to start than SpaceX, whose Falcon 9 rockets have lofted nearly 2,000 internet-beaming satellites into orbit for its own venture, Starlink. Thousands of customers are testing the SpaceX service for $99 a month with $499 antenna kits.

Amazon unveiled a customer antenna concept in 2020 and has been testing prototype satellites on the ground for years.

“You can test all the stuff you want in your labs, which we do,” Rajeev Badyal, a vice president at Amazon overseeing the Kuiper project, said in an interview. “But the ultimate test is in space.”

Competition among the companies is fierce, and their plans have drawn interest from investors and analysts who foresee tens of billions of dollars in revenue once the constellations become fully operational. But those same plans have also drawn criticism from space safety advocates who fear collisions of satellites adding to pollution in orbit; astronomers, whose ground-based telescope observations of the night sky could be disrupted by the satellites; and dark skies advocates who fear light pollution from sunlight reflecting from the constellations.

The Federal Communications Commission, which regulates satellite communications to the ground, approved Amazon’s network in 2020 and gave the company a deadline to launch half of its 3,236 satellites by mid-2026. Amazon bought nine launches from the rocket company United Launch Alliance in a deal likely worth hundreds of millions of dollars.

But Amazon has been talking to other launch companies, Mr. Badyal said, including its competitor, SpaceX, whose rapid Starlink deployment is partially because of its ability to use its own reusable rocket boosters for launches.

The first two prototype satellites, KuiperSat-1 and KuiperSat- 2, will launch separately on rockets from ABL Space Systems, one of a handful of start-ups building smaller launch vehicles to sate demand from satellite companies. The market for smaller rockets, designed to deliver payloads to space quickly and affordably, is packed with competitors, making ABL’s Amazon contract — good for up to five launches on ABL’s RS1 rocket from Cape Canaveral, Fla. — a boost for the company.
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The pair of Amazon prototype satellites will test internet connections between space and the company’s flat, square antennas for consumers on the ground for the first time in Amazon’s Kuiper program. Regions for the test include parts of South America, the Asia-Pacific region and Central Texas. Past experiments involved flying drones with satellite hardware over antennas on the ground and connecting ground antennas to other companies’ satellites already in space, drawing internet speeds fast enough to stream high-definition video.

Using high-speed lasers, researchers have created "5D" data storage technology that could allow 500 TB of data to be written to a CD-sized glass disc, according to The Optical Society. The technique uses higher writing speeds that might finally make it feasible to use the technology for archival and other purposes. 

With 5D optical storage, each file uses three layers of nanoscale dots. The dots' size, orientation, and position within the three standard dimensions, make up the five "dimensions." The dots change the polarization of light travelling through the disc, which is read using a microscope and polarizer.

We've seen 5D optical storage before, but there were several problems—particularly the slow writing speeds that made the technology impractical. It has huge upsides for (extremely) long-term storage, though. It's been estimated that the storage medium could withstand temperatures up to 1,000 degrees C and last 13.8 billion years at room temperature without degrading. 

To overcome the speed problem, researchers used a femtosecond laser with a high repetition rate. Rather than writing directly in the glass, they used the laser to produce a phenomenon called near-field enhancement, that creates tiny structures using a few weak light pulses. Those can enhance the circular voids generated by a more powerful, single-pulse "micro-explosion." This technique "minimized the thermal damage that has been problematic for other approaches that use high-repetition-rate lasers," according to the paper.

Using the new technique, the team could write 5GB of text data onto a silica glass disc the size of a conventional CD with nearly 100 percent readout accuracy. "With the writing density available from the method, the disc could hold 500 terabytes of data," the researchers said. They could also write at speeds of a million voxels per second, or about 230 KB per second. 
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That might sound slow, but by introducing parallel writing, you could feasibly fill a 500TB disc in about 60 days. That could provide a way to back up reams of valuable data, essentially forever. "With the current system, we have the ability to preserve terabytes of data, which could be used, for example, to preserve information from a person’s DNA," said research team leader Peter G. Kazansky.