Dogs are animals of integrity. We have much to learn from them.
Category: Electronics
More NASA images.
And what images.
There is more information on the NASA website.
Now a YouTube video.
What terrific images from Hubble.
This article hits home!
I find it is very hard to keep current on new technological developments. I am well past being young but still fascinated by science and technology.
Thus, it seemed like one that I should publish.
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Debaleena Chattopadhyay, University of Illinois Chicago
This past Christmas, I helped my parents choose a water filter. The latest “smart” models all came with a smartphone app that promised to monitor filter life, track water quality and automatically request service. Yet my father, age 75, and mother, 67, were quick to reject them in favor of a nondigital model.
“Every time it updates or I forget how to use it, we’ll have to call you,” my dad said.
As an only child living 8,000 miles (12,875 kilometers) away, I didn’t need convincing. My parents are aging in place and don’t need traditional caregiving – they cook, drive and manage their home just fine. Instead, I provide what I call technology caregiving: helping them with their digital activities of daily living, from online banking to booking theater tickets.
But as the tech industry shifts toward artificial intelligence agents and generative user interfaces – promising to make devices smarter than ever – I am bracing for this invisible workload to become heavier, not lighter. In addition to being a technology caregiver, I’m a computer scientist who studies human-computer interaction.
Technology caregiving is the act of helping someone use digital tools. While this isn’t entirely new – people have long helped grandparents program VCRs and connect parents’ desktop computers to the internet – the stakes have changed.
Today, digitization is ubiquitous. Helping with these tools is no longer just occasional unpaid tech support – it is a form of continuous caregiving essential for maintaining independence. For example, even the simple act of clipping coupons has gone digital – marginalizing older adults who are unable to navigate store apps to access these discounts.
People often view older adults as resistant to technology, but recent years – particularly since the COVID-19 pandemic – have shattered that myth. While gaps in internet access and device ownership remain, they are no longer major barriers to technology access.
The emerging crisis is not about access, but effective use. Many older adults are now online and willing to use these tools, but they require frequent help from family, friends or communities.
The problem isn’t just that devices and apps are getting complex; it’s that they are constantly changing. Frequent software updates and shifting interfaces can be frustrating for all users, but they turn familiar tools into foreign concepts for older adults.
This unpredictability is about to accelerate. Take generative user interfaces, which designers can use to dynamically generate an interface in minutes. Pair them with AI agents, and the system can assume the designer’s role, taking independent actions based on how it perceives a user’s intent or need.
If the “Pay Bill” button is in a different place every third time you open a particular app because an AI decided to optimize the interface, you might feel perpetually incompetent if you can’t quickly locate it. While the industry calls this personalization, for an older adult it is a moving target.
This relentless pace of change – even when intended to be helpful – is directly at odds with age-related cognitive changes. And this dynamic is continuing with the new generation of seniors. They may be more eager to adopt new tools than the last, but wanting to use technology is not the same as being able to use it when the rules are constantly changing.
To navigate a brand new or shifting interface, your brain relies on fluid intelligence: the ability to reason, solve novel problems and ignore distractions on the fly. Unlike the knowledge that people accumulate over time, fluid intelligence naturally declines with age.
When an app updates or an AI optimizes a layout, it forces the user to discard their hard-won mental models and start over. For an older adult, this isn’t just a minor inconvenience; it is a taxing job for their working memory.
As an older adult participant in a study my colleagues and I conducted put it:
“I had a computer on my desk in 1980, OK, when nobody else did. So this is not a foreign language, but the changes that are made with little to no explanation and then things that you knew how to do have either changed or disappeared completely, that is the stuff that absolutely drives me, and I will tell you, every other older adult in America nuts.”
I believe that the way forward is to stop treating tech support as an afterthought and start designing for the technology caregiver. Digital literacy training for seniors and encouraging designing technologies for all users are important but not enough; it’s important to build tools that share the burden.
Two promising paths are emerging. First, cognitive accessibility features – like AI assistants that find buried buttons or provide real-time tech support – can offload tasks from the caregiver. Second, tools for caregivers are beginning to move beyond simply controlling device feature access to capabilities such as allowing authorized access for banking as co-users, or recording personalized instructions.
These tools will also need to be tailored: Family caregivers need different tools than community helpers like libraries and senior centers.
In the age of AI, innovation shouldn’t be a tax on the aging brain – it should help bridge the digital divide.
Debaleena Chattopadhyay, Assistant Professor of Computer Science, University of Illinois Chicago
This article is republished from The Conversation under a Creative Commons license. Read the original article.
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I like the idea of having a technology caregiver. I like the idea very much.
The science of looking at other worlds is amazing.
With so much going wrong, primarily politically, in the world, I just love turning to news about distant places; and by distant I mean hugely so. That is why I am republishing this item from The Conversation about other stars.
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Daniel Apai, University of Arizona
On Jan. 11, 2026, I watched anxiously at the tightly controlled Vandenberg Space Force Base in California as an awe-inspiring SpaceX Falcon 9 rocket carried NASA’s new exoplanet telescope, Pandora, into orbit.
Exoplanets are worlds that orbit other stars. They are very difficult to observe because – seen from Earth – they appear as extremely faint dots right next to their host stars, which are millions to billions of times brighter and drown out the light reflected by the planets. The Pandora telescope will join and complement NASA’s James Webb Space Telescope in studying these faraway planets and the stars they orbit.
I am an astronomy professor at the University of Arizona who specializes in studies of planets around other stars and astrobiology. I am a co-investigator of Pandora and leading its exoplanet science working group. We built Pandora to shatter a barrier – to understand and remove a source of noise in the data – that limits our ability to study small exoplanets in detail and search for life on them.
Astronomers have a trick to study exoplanet atmospheres. By observing the planets as they orbit in front of their host stars, we can study starlight that filters through their atmospheres.
These planetary transit observations are similar to holding a glass of red wine up to a candle: The light filtering through will show fine details that reveal the quality of the wine. By analyzing starlight filtered through the planets’ atmospheres, astronomers can find evidence for water vapor, hydrogen, clouds and even search for evidence of life. Researchers improved transit observations in 2002, opening an exciting window to new worlds.
When a planet passes in front of its star, astronomers can measure the dip in brightness, and see how the light filtering through the planet’s atmosphere changes.
For a while, it seemed to work perfectly. But, starting from 2007, astronomers noted that starspots – cooler, active regions on the stars – may disturb the transit measurements.
In 2018 and 2019, then-Ph.D. student Benjamin V. Rackham, astrophysicist Mark Giampapa and I published a series of studies showing how darker starspots and brighter, magnetically active stellar regions can seriously mislead exoplanets measurements. We dubbed this problem “the transit light source effect.”
Most stars are spotted, active and change continuously. Ben, Mark and I showed that these changes alter the signals from exoplanets. To make things worse, some stars also have water vapor in their upper layers – often more prominent in starspots than outside of them. That and other gases can confuse astronomers, who may think that they found water vapor in the planet.
In our papers – published three years before the 2021 launch of the James Webb Space Telescope – we predicted that the Webb cannot reach its full potential. We sounded the alarm bell. Astronomers realized that we were trying to judge our wine in light of flickering, unstable candles.
For me, Pandora began with an intriguing email from NASA in 2018. Two prominent scientists from NASA’s Goddard Space Flight Center, Elisa Quintana and Tom Barclay, asked to chat. They had an unusual plan: They wanted to build a space telescope very quickly to help tackle stellar contamination – in time to assist Webb. This was an exciting idea, but also very challenging. Space telescopes are very complex, and not something that you would normally want to put together in a rush.
Pandora breaks with NASA’s conventional model. We proposed and built Pandora faster and at a significantly lower cost than is typical for NASA missions. Our approach meant keeping the mission simple and accepting somewhat higher risks.
Pandora is smaller and cannot collect as much light as its bigger brother Webb. But Pandora will do what Webb cannot: It will be able to patiently observe stars to understand how their complex atmospheres change.
By staring at a star for 24 hours with visible and infrared cameras, it will measure subtle changes in the star’s brightness and colors. When active regions in the star rotate in and out of view, and starspots form, evolve and dissipate, Pandora will record them. While Webb very rarely returns to the same planet in the same instrument configuration and almost never monitors their host stars, Pandora will revisit its target stars 10 times over a year, spending over 200 hours on each of them. https://www.youtube.com/embed/Inxe5Bgarj0?wmode=transparent&start=0 NASA’s Pandora mission will revolutionize the study of exoplanet atmospheres.
With that information, our Pandora team will be able to figure out how the changes in the stars affect the observed planetary transits. Like Webb, Pandora will observe the planetary transit events, too. By combining data from Pandora and Webb, our team will be able to understand what exoplanet atmospheres are made of in more detail than ever before.
After the successful launch, Pandora is now circling Earth about every 90 minutes. Pandora’s systems and functions are now being tested thoroughly by Blue Canyon Technologies, Pandora’s primary builder.
About a week after launch, control of the spacecraft will transition to the University of Arizona’s Multi-Mission Operation Center in Tucson, Arizona. Then the work of our science teams begins in earnest and we will begin capturing starlight filtered through the atmospheres of other worlds – and see them with a new, steady eye.
Daniel Apai, Associate Dean for Research and Professor of Astronomy and Planetary Sciences, University of Arizona
This article is republished from The Conversation under a Creative Commons license. Read the original article.
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It may not be for everyone but for me I find this news from NASA incredible. Well done The Conversation for publishing this article.
We are talking of prime numbers.
Science and mathematics have been a long interest of mine and I regret that I did not go to university to study science. But that was a long time ago!
However, thanks to The Conversation I can write about mathematics, in this case Prime Numbers.
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Jeremiah Bartz, University of North Dakota
A shard of smooth bone etched with irregular marks dating back 20,000 years puzzled archaeologists until they noticed something unique – the etchings, lines like tally marks, may have represented prime numbers. Similarly, a clay tablet from 1800 B.C.E. inscribed with Babylonian numbers describes a number system built on prime numbers.
As the Ishango bone, the Plimpton 322 tablet and other artifacts throughout history display, prime numbers have fascinated and captivated people throughout history. Today, prime numbers and their properties are studied in number theory, a branch of mathematics and active area of research today.
Informally, a positive counting number larger than one is prime if that number of dots can be arranged only into a rectangular array with one column or one row. For example, 11 is a prime number since 11 dots form only rectangular arrays of sizes 1 by 11 and 11 by 1. Conversely, 12 is not prime since you can use 12 dots to make an array of 3 by 4 dots, with multiple rows and multiple columns. Math textbooks define a prime number as a whole number greater than one whose only positive divisors are only 1 and itself.
Math historian Peter S. Rudman suggests that Greek mathematicians were likely the first to understand the concept of prime numbers, around 500 B.C.E.
Around 300 B.C.E., the Greek mathematician and logician Euler proved that there are infinitely many prime numbers. Euler began by assuming that there is a finite number of primes. Then he came up with a prime that was not on the original list to create a contradiction. Since a fundamental principle of mathematics is being logically consistent with no contradictions, Euler then concluded that his original assumption must be false. So, there are infinitely many primes.
The argument established the existence of infinitely many primes, however it was not particularly constructive. Euler had no efficient method to list all the primes in an ascending list.
In the middle ages, Arab mathematicians advanced the Greeks’ theory of prime numbers, referred to as hasam numbers during this time. The Persian mathematician Kamal al-Din al-Farisi formulated the fundamental theorem of arithmetic, which states that any positive integer larger than one can be expressed uniquely as a product of primes.
From this view, prime numbers are the basic building blocks for constructing any positive whole number using multiplication – akin to atoms combining to make molecules in chemistry.
Prime numbers can be sorted into different types. In 1202, Leonardo Fibonacci introduced in his book “Liber Abaci: Book of Calculation” prime numbers of the form (2p – 1) where p is also prime.
Today, primes in this form are called Mersenne primes after the French monk Marin Mersenne. Many of the largest known primes follow this format.
Several early mathematicians believed that a number of the form (2p – 1) is prime whenever p is prime. But in 1536, mathematician Hudalricus Regius noticed that 11 is prime but not (211 – 1), which equals 2047. The number 2047 can be expressed as 11 times 89, disproving the conjecture.
While not always true, number theorists realized that the (2p – 1) shortcut often produces primes and gives a systematic way to search for large primes.
The number (2p – 1) is much larger relative to the value of p and provides opportunities to identify large primes.
When the number (2p – 1) becomes sufficiently large, it is much harder to check whether (2p – 1) is prime – that is, if (2p – 1) dots can be arranged only into a rectangular array with one column or one row.
Fortunately, Édouard Lucas developed a prime number test in 1878, later proved by Derrick Henry Lehmer in 1930. Their work resulted in an efficient algorithm for evaluating potential Mersenne primes. Using this algorithm with hand computations on paper, Lucas showed in 1876 that the 39-digit number (2127 – 1) equals 170,141,183,460,469,231,731,687,303,715,884,105,727, and that value is prime.
Also known as M127, this number remains the largest prime verified by hand computations. It held the record for largest known prime for 75 years.
Researchers began using computers in the 1950s, and the pace of discovering new large primes increased. In 1952, Raphael M. Robinson identified five new Mersenne primes using a Standard Western Automatic Computer to carry out the Lucas-Lehmer prime number tests.
As computers improved, the list of Mersenne primes grew, especially with the Cray supercomputer’s arrival in 1964. Although there are infinitely many primes, researchers are unsure how many fit the type (2p – 1) and are Mersenne primes.
By the early 1980s, researchers had accumulated enough data to confidently believe that infinitely many Mersenne primes exist. They could even guess how often these prime numbers appear, on average. Mathematicians have not found proof so far, but new data continues to support these guesses.
George Woltman, a computer scientist, founded the Great Internet Mersenne Prime Search, or GIMPS, in 1996. Through this collaborative program, anyone can download freely available software from the GIMPS website to search for Mersenne prime numbers on their personal computers. The website contains specific instructions on how to participate.
GIMPS has now identified 18 Mersenne primes, primarily on personal computers using Intel chips. The program averages a new discovery about every one to two years.
Luke Durant, a retired programmer, discovered the current record for the largest known prime, (2136,279,841 – 1), in October 2024.
Referred to as M136279841, this 41,024,320-digit number was the 52nd Mersenne prime identified and was found by running GIMPS on a publicly available cloud-based computing network.
This network used Nvidia chips and ran across 17 countries and 24 data centers. These advanced chips provide faster computing by handling thousands of calculations simultaneously. The result is shorter run times for algorithms such as prime number testing.
The Electronic Frontier Foundation is a civil liberty group that offers cash prizes for identifying large primes. It awarded prizes in 2000 and 2009 for the first verified 1 million-digit and 10 million-digit prime numbers.
Large prime number enthusiasts’ next two challenges are to identify the first 100 million-digit and 1 billion-digit primes. EFF prizes of US$150,000 and $250,000, respectively, await the first successful individual or group.
Eight of the 10 largest known prime numbers are Mersenne primes, so GIMPS and cloud computing are poised to play a prominent role in the search for record-breaking large prime numbers.
Large prime numbers have a vital role in many encryption methods in cybersecurity, so every internet user stands to benefit from the search for large prime numbers. These searches help keep digital communications and sensitive information safe.
Jeremiah Bartz, Associate Professor of Mathematics, University of North Dakota
This article is republished from The Conversation under a Creative Commons license. Read the original article.
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I find it unbelievable that there are prizes for the first 100 million-digit prime number and also the first 1 billion-digit prime number. It is so far away from my understanding of these numbers that all I can say is: I find it unbelievable!
Penny Martin offers another post, but first comment on the rain.
With this day being the 1st February I can tell you what we received in rainfall for January: it was 11.99 inches (30.45 cms). That is a record for the years that we have been living here.
Now over to Penny.
Penny Martin is now a regular contributor to these pages, and I am grateful for that. Simply because I have been blogging for a long time and having this resource is most welcome. Not that I consider Penny a ‘resource’ she is much more than that: Penny is a brilliant contributor.
Here is her latest offering, talking about the new world so many of us are now living in.
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Image: Freepik
Laptop and Leash: Succeeding as a Pet-Loving Digital Nomad
By Penny Martin.
In today’s interconnected world, the allure of becoming a digital nomad resonates with many. This lifestyle promises the freedom to explore the world while staying professionally active. However, for those who cherish the company of their pets, this dream presents unique challenges. This guide from Learning from Dogs is designed to navigate the complexities of adopting a digital nomad lifestyle with your pet, ensuring a seamless transition that caters to both your needs and those of your animal companion.
Establishing a Financial Foundation
Embarking on a journey with your pet as a digital nomad begins with the fundamental step of securing a reliable income. This financial stability is the cornerstone of your nomadic life, ensuring that both you and your pet’s needs are adequately met. Whether it’s through remote employment, freelance work, or managing an online business, a consistent income stream is essential. It provides peace of mind and the freedom to fully embrace the nomadic lifestyle with your furry friend.
Advancing Digital Skills
In today’s rapidly changing digital environment, the skills you possess are of paramount importance. It’s essential to devote time to bolstering your digital expertise. One way to do this is by pursuing further education, such as enrolling in online courses that offer specialized training. Notably, a cybersecurity degree can be earned online, providing an avenue to deepen your understanding of protecting data and computer networks. Additionally, acquiring skills in fields like digital marketing or web development can be immensely beneficial. These skills are invaluable not just for career growth and stability but also for ensuring you can work effectively from any corner of the globe.
Finding Pet-Friendly Living Spaces
Transitioning to a nomadic lifestyle with a pet requires thoughtful planning, particularly when it comes to accommodations. It is essential to find living spaces that are not just comfortable for you but also welcoming to your pet. This means prioritizing pet-friendly hotels, apartments, and co-living spaces in your travel planning. Ensuring a comfortable and safe environment for your pet is key to a successful journey, allowing both of you to settle in and adapt to new surroundings with ease.
Navigating Legalities and Regulations
As you traverse different regions and countries, it’s important to stay informed about the varying legal requirements related to pet travel and ownership. This includes understanding entry regulations, quarantine rules, and local leash laws. Being well-versed in these legalities ensures that you avoid any complications or surprises during your travels. It also demonstrates a commitment to responsible pet ownership, reflecting a respect for the regulations of each place you visit.
Emphasizing Pet Health and Safety
The health and safety of your pet should always be a top priority. This includes ensuring that all vaccinations are up-to-date and that your pet has a microchip with current contact information. Additionally, researching veterinary services and emergency clinics in each new location provides peace of mind. Being proactive about your pet’s health needs and prepared for any emergencies are crucial aspects of traveling safely and responsibly with your pet.
Access to Veterinary Services
Before setting off on your nomadic adventure, investigate the availability of veterinary care in your planned destinations. Identifying reputable clinics and hospitals ensures that you have access to necessary health services for your pet. In addition, carrying a basic first-aid kit for pets can help manage minor health issues that may arise during your travels. Being prepared in this regard is a testament to your commitment to your pet’s well-being.
Efficient Management of Pet Documents
Organizing your pet’s documents is as important as managing your own. This includes keeping a digital record of your pet’s medical history, identification, and travel permits. Utilizing mobile applications for document scanning and storage offers a convenient solution to keep these vital records accessible at all times. Efficient document management streamlines the process of crossing borders and accessing services, ensuring a smoother travel experience for both you and your pet.
The journey of a digital nomad with a pet is a path filled with rewarding experiences and unique challenges. By laying a solid financial foundation, enhancing your digital capabilities, and meticulously planning for your pet’s needs, this lifestyle becomes not only feasible but deeply fulfilling. It’s a journey that goes beyond mere travel – it’s about building a life rich with experiences and memories, shared with your loyal companion every step of the way.
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These are key tips from Penny and ones that all people who are regular users of digital devices should employ; and that is a huge number these days.
Jean and I are still coming to terms with Monday’s loss of Brandy. We will never forget the incident for the rest of our lives. Hearing that Brandy’s body had been found would be very helpful but, personally, I think that is very unlikely.
In memory of Gordon Moore.
From Wikipedia:
Gordon Earle Moore (January 3, 1929 – March 24, 2023) was an American businessman, engineer, and the co-founder and emeritus chairman of Intel Corporation.
It was in 1965 that Gordon Moore suggested that every year there would be a doubling of the number of components per integrated circuit. In 1975 he revised his forecast to a doubling every two years; that prediction has become a reliable outcome and became known as Moore’s Law.
Just look at the left-hand scale of that graph above and ponder on the figures. From less than 10,000 in 1971 to more than 10 billion in 2021!
Incredible!
Gordon Earle Moore in 1978. He died on March 24th, 2023 aged 94 years.
What an amazing man!
Finding one that really works.
Whatever age we are and in many different cultures the New Year holds out so much hope. It seems an opportunity to start anew, to put the habits of last year behind us, to embrace a new start. Yet all the evidence is that a New Year’s Resolution will not make it through to February.
That is why I picked up on a recent article in The Conversation, that they kindly allow to be republished.
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Professor of Communication Arts and Sciences, Penn State. Published: January 3, 2023.
The late Zen master Thich Nhat Hanh leading a meditation walk. Steve Cray/South China Morning Post via Getty Images
The start of another year can feel magical to many of us. Even though the days remain short and dark, the flip of the calendar can make it seem new beginnings with new resolutions are possible.
Mindfulness scholars and teachers like me call resolutions “habit breakers,” as they can overcome patterns that no longer serve individuals. However, research suggests that many resolutions fail by the end of January.
But a key to ensuring that resolutions stick is to choose one that will make a meaningful difference in your life. Seeing a real, tangible benefit can provide inspiration to keep going when all of life is telling us to let things go back to how they were before.
Living more mindfully is a common New Year’s resolution. This year, try gifting it to others.
Mindfulness has been shown to have a number of meaningful health benefits – it can help reduce anxiety and promote healing in those suffering from long-term chronic illness.
The practice is based on an insight first described by ancient Buddhist texts that human beings have the capacity to observe experience without being caught up in it. This means, simply and wonderfully, that it is possible to observe ourselves having a craving, or a happy thought, or even a scary emotion, without reacting in the moment in a way that amplifies the feeling or sends the mind spiraling off into thinking about old memories or anticipating events.
This practice can help calm the mind and the body as we learn not to react to experience with likes and dislikes or judgments of good and bad. It does not make us cold or apathetic but more fully present.
One of the challenges of practicing mindfulness in our contemporary world is that there has been a profound transformation in human attention. The artist Jenny Odell argues that in our “attention economy” human attention has been transformed into a commodity that big corporations buy and sell. This economy rests on a technological revolution of mobile phones and social media that makes it possible for corporations to reach us with content that can capture and monetize our focus, at every moment, every day, and no matter where we may be.
The constant need to be checking our phones keeps us from being fully present. Abdulhamid Hosbas/Anadolu Agency via Getty Images
The needy little devices most people carry in their pockets and wear on their wrists, incessantly beeping and buzzing and chirping, are a perpetual diversion from the present moment. The result is that it can feel as though our ability to focus, and be fully present, has been stolen.
But mindfulness can help us resist the attention economy and savor the things that make life special, like being together with those we love.
While most mindfulness research focuses on the individual benefits of the practice, scholars like me argue that we not only practice mindfulness for ourselves but that we can also practice it for others. It can help us build stronger, healthier relationships.
The sad truth is that living in the attention economy, most of us have become bad listeners. However, just as it is possible to watch ourselves having an experience without reacting, it’s possible to watch another person have an experience without getting tied up in reactivity and judgment. It’s possible simply to be present.
The gift of mindfulness is a practice of listening with compassion to another person describe their experiences. To give this gift means putting away your phone, turning off social media, and setting aside other common distractions. It means practicing being fully present in another person’s presence and listening to them with complete attention, without reacting with judgment, while resisting the urge to make the interaction about you.
If we judge the value of gifts based on how much they cost, this gift may seem worthless. But in a distracted world, I argue, it is a precious one.
It is not a gift that you will wrap, or put inside a card; it’s not one you will have to name as a gift or draw attention to. It’s something you can do right now.
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Professor David Engels is spot on. The number of people who are wedded to their cell phone, especially the younger ones of us, is frightening. Many years ago I was fortunate to have a counsellor who was into mindfulness and some of the good practices have stayed with me.
So, please, if you are thinking that your use of a cell phone is intrusive, even slightly, then let this New Year present a new you!
P.S.
Belinda sent in the following attached to one of her comments. It’s perfect! Thank you, Belinda!
And while we are on the subject of New Year’s Resolutions try this one. It is not a long video but it is extremely important; it concerns our diet and our health!
But an important one!
From the 21st November until the 23rd Sunshine Solar installed a solar panel system. But we were then told to wait until Pacific Power had come to the house to put in a new electricity meter. Last Thursday, 1st December, Brent from Pacific Power called by and replaced our electricity meter. He replaced it with a bi-directional meter that when we were producing more power than we are consuming then the surplus would be ‘banked’ to be used at times when we required the surplus.
This was the result of us investing in a ground-mounted solar system.
We purchased the system from Solar Sunshine after doing a great deal of research. Indeed Brent said that they were a great company.
The other thing that we had no choice over was to install a ground-mounted system some 120 feet from the house. Because neither the house nor the roof face East and therefore are no use for solar. But as Brent pointed out last Thursday the ground-mounted system, despite being more expensive, was a good alternative to the roof system because new roof tiles were irrelevant.
The system consists of 30 individual panels capable of producing a maximum output of 65 amps at 240 volts; in other words 15,600 watts!
Yesterday, Cory and Brandon (sp?) came out to the system and checked that it was alright. Plus they gave us an digital application so we could see how much power we were generating, plus more, and they also took some photographs, that I offer you now.
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This last photograph was one taken by yours truly with Cory on the left and Brandon on the right with Jeannie in the middle.
Finally, the ‘app’ is going to be very useful.
Already it shows that last Saturday the array produced 29 kilowatts and then yesterday, the 4th December, the array produced 22.9 kilowatts and these were by no means sunlit days all the time. That brings the total for all 5 days in December, in other words since the system went live, to 91.1 kilowatts as of 15:27 PT on the 5th.
We are most pleased with the company and the installation.
Nasa’s James Webb telescope is awesome beyond words.
The recent launch of this telescope, as a successor to Hubble, can see right back more than 13.5 billion years. The universe was formed 13.78 billion years ago. The reach of the James Webb telescope is therefore 98% (97.96) of the life of the universe. But the superlatives about this telescope are almost never-ending. For example it will, in time, be able to explore the tiny planetary worlds far, far away. We may in time see signs of life, as in water, vegetation, or industrialisation, connected with those planets.
The James Webb is in orbit some million miles away from Earth and will, in fact, be orbiting the sun.
One could go on and on speaking about this achievement but I will resist. I want to share a three things with you.
First the release of this early image and a portion of the associated text:
NASA’s James Webb Space Telescope has delivered the deepest and sharpest infrared image of the distant universe so far. Webb’s First Deep Field is galaxy cluster SMACS 0723, and it is teeming with thousands of galaxies – including the faintest objects ever observed in the infrared.
Webb’s image is approximately the size of a grain of sand held at arm’s length, a tiny sliver of the vast universe. The combined mass of this galaxy cluster acts as a gravitational lens, magnifying more distant galaxies, including some seen when the universe was less than a billion years old. This deep field, taken by Webb’s Near-Infrared Camera (NIRCam), is a composite made from images at different wavelengths, totaling 12.5 hours – achieving depths at infrared wavelengths beyond the Hubble Space Telescope’s deepest fields, which took weeks. And this is only the beginning. Researchers will continue to use Webb to take longer exposures, revealing more of our vast universe.
Second, why is it named after James E. Webb (1906- 1992)? James Webb was NASA’s second administrator and known for leading Apollo, the series of lunar exploration programs that landed the first humans on the Moon. (A good Q&A is here: https://www.jwst.nasa.gov/content/about/faqs/faq.html )
Last thing to share is some music! ‘Floating in Heaven’ by Graham Gouldman and Brian May
It is indeed wonderful to be alive at this time!
My Mac is playing up.
Dear good people,
Yesterday I updated my iMac and ended up with a dark screen.
Apple Support recommended me downloading and reinstalling the latest O.S.
This morning I still can’t get my Apple to behave normally.
I have no option other than to take it into a local Grants Pass computer technician and see if he can make sense of the issue.
In the meantime normal service will be somewhat curtailed.
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