Category: Communication

Dogs and wolves, sleeping difference

Just a short video!

Here are details of the author.

Vivien is from the Institute of Cognitive Neuroscience and Psychology, Research Centre for Natural Sciences. She is Hungarian.

Wildfire prevention

This is a precarious time of the year!

We live just outside Merlin in Southern Oregon. We have 13 acres of which roughly half is wooded. With the year-on-year warming wildfires are never far from our minds during our Summer. Here’s a part of a message from OPB.

What’s happening

High temperatures are in the forecast along the Interstate 5 corridor, the Willamette Valley and in Central and Eastern Oregon. More than a quarter million acres across multiple counties in Eastern Oregon are ablaze with wildfires, and that could mean smoke and haze, especially in Central and northeastern Oregon.

A view of the southern portion of the Lone Rock Fire in north-central Oregon on Wednesday, July 17, 2024.
A view of the southern portion of the Lone Rock Fire in north-central Oregon on Wednesday, July 17, 2024.Courtesy InciWeb 

Hot weather persists

The National Weather Service is anticipating a hot weekend across much of Oregon and Southwest Washington. The agency on Friday issued a heat advisory along the Interstate 5 corridor from Battle Ground, Washington to Cottage Grove, Oregon from 11 a.m. to 11 p.m. Saturday. Temperatures could reach the mid-90s.

From central Oregon east towards Burns a heat advisory is in place from 11 a.m. Saturday to 11 p.m. Monday. Harney County could see temperatures over 100 degrees over the weekend.

Which neatly serves as an introduction to an article from The Conversation about protecting one’s home.

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How to protect your home from wildfires – here’s what fire prevention experts say is most important

Bryce Young, University of Montana and Chris Moran, University of Montana

Extreme heat has already made 2024 a busy wildfire year. More acres had burned by mid-July than in all of 2023, and several communities had lost homes to wildfires.

As fire season intensifies across the West, there are steps homeowners can take to make their homes less vulnerable to burning and increase the likelihood that firefighters can protect their property in the event of a wildfire.

We research wildfire risk to homes and communities. Here’s what decades of research suggest homeowners in high-fire-risk areas can do to protect their properties.

Two photos show the house with the fire behind it and after the fire, with burned land around it but the house untouched.
This house near Cle Elum, Wash., survived a 2012 wildfire because of the defensible space around the structure, including a lack of trees and brush close to the house, according to state officials. AP Photo/Elaine Thompson

Small improvements make big differences

A structure’s flammability depends on both the materials that were used to build it and the design of the building. In general, the vulnerability of a house is determined by its weakest point.

The roof, windows, siding and vents are all vulnerable points to pay attention to.

Roof: The roof provides a landing pad where airborne embers can accumulate like snowflakes. Roofs with lots of valleys can collect pine needles and leaves, which can be ignited by flying embers. This is why it’s important for the roof itself to be made of Class A non-flammable material like clay tiles or asphalt shingles, and why roof maintenance, including cleaning gutters, is important. Embers can easily find their way under peeling shingles, through gaps of clay tiles, or into gutters where pine needles and leaves can accumulate.

Windows: If windows are exposed to heat, they can shatter and allow fire inside the home, where curtains can easily ignite. Even double-paned windows can be shattered by the heat of a burning shed 30 feet away, unless the window glass is tempered, making it stronger. Fire-resistant shutters made of metal, if closed before a fire arrives, can offer additional protection. https://www.youtube.com/embed/HjA9yLP1icg?wmode=transparent&start=0 A life-size test with blowing embers at IBHS’s fire lab shows ways homes are at risk form a nearby fire.

Siding: Materials like stucco are non-flammable, while cedar shake siding will burn. Your exterior siding should be non-flammable, but the siding is only as strong as its weakest point. If there are holes in the siding, plug them with caulk to prevent embers from reaching the wooden frame in your walls. Ideally, there will be a 6- to 12-inch concrete foundation between the ground and the bottom of your siding material.

Vents: Reducing risk from vents is easy and affordable and can drastically reduce the flammability of your home. Make sure that one-eighth inch or finer metal mesh is installed over all vents to keep embers out of your attic and your home’s interior.

Controlling your home ignition zone

A home’s vulnerability also depends on the area around it, referred to as the home ignition zone.

The risk in your home ignition zone depends on things such as the slope of your land and the ecosystem surrounding your home. Here are a few guidelines the National Fire Protection Association recommends, both to reduce the chance of flames reaching your home and make it easier for firefighters to defend it.

Zone 1 – Within 5 feet

From the home’s exterior to 5 feet away, you want to prevent flames from coming in contact with windows, siding, vents and eaves. The gold standard is to have only non-flammable material in Zone 1.

The most common risks are having flammable mulch, plants, firewood, lawn furniture, decks and fences. These items have been a primary reason homes burned in many wildfires, including the 2018 Camp Fire that destroyed much of Paradise, California, and the 2012 Waldo Canyon Fire near Colorado Springs, Colorado.

An illustration of a house with rings at different distances around it and advice for each ring.
Fire protection guidelines take into consideration the surrounding ecosystem. Here some examples based on the National Fire Protection Association’s guidelines. Bryce Young, CC BY

Replacing mulch with gravel or pavers and having only short, sparse plants that don’t touch the house can help reduce the risk.

Wooden decks and fences can burn even if they are well-maintained. Replacing them with non-flammable materials or installing a thin sheet of metal on the house where the siding touches a wooden deck or fence can help protect the home. Mesh screens can prevent the accumulation of debris and embers under the deck.

Zone 2 – 5 to 30 feet away

In the next ring, between 5 and 30 feet from the home, the lawn should be green and short. This is Zone 2.

Be sure to rake up pine needles and leaves and take care to prune the lowest tree branches at least 6 feet high.

There should be about 18 feet of space between trees on a flat slope, and the spacing should increase with slope because steeper terrain drives faster, more intense fires. Walks, pathways, patios, decks and firewood can be kept in this zone.

Zone 3 – 30 to 100 feet away

Beyond Zone 2 and out to about 100 feet from the home is Zone 3. In this area, be sure to give sheds and propane tanks their own defensible space, just like around the house, and prune all low branches to 6 feet.

You can contact your local emergency management office or community wildfire nonprofit to learn more about grant funding that can offset the costs of pruning and removing trees on a forested property.

Beyond 100 feet may extend past your property boundary, but the adjacent house can still be fuel for a wildfire. That’s why it’s smart to plan with your neighbors as you’re reinforcing your own home. Once one house catches fire, house-to-house fire spread is facilitated by closer distances between buildings.

Be prepared

While most U.S. government spending aims to mitigate wildfire hazard on national forests, it is up to residents and communities themselves to reduce their vulnerability to a wildfire disaster.

Following the guidelines required by your community or state and those outlined above can help. Communities can also take steps to reduce fire risk and make fires easier to control by developing a community wildfire protection plan, exploring their wildfire risk, and adopting wildfire-specific building codes.

As the nation rolls into fire season, make sure your property is prepared. And when the call to evacuate comes, know where to go and get the heck out.

Bryce Young, Graduate Student Researcher, Fire Center, University of Montana and Chris Moran, Post-doctoral Researcher, Fire Center, University of Montana

This article is republished from The Conversation under a Creative Commons license. Read the original article.

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Where we live is beautiful and earlier this year we had a great deal of rain. But the summers are dry; that is a function of the climate in this part of the world. So for July so far we have had no rain and that is normal. Also no rain in July in 2023.

The three zones, as described earlier in this post, are very helpful.

A delightful story

About a blind man and his dog being rescued.

Today’s post is a short video that has no sound. But don’t let that stop you from watching it.

Blind man and dog rescued after days stuck on trail.

A 55-year-old blind man and his dog have been rescued from the Rogue River trail in South-Western Oregon. They began hiking on the trail on July 3 or 4 with a friend. During the hike, the man began to experience heat exhaustion, so the friend left to try to call emergency services. A US Coast Guard helicopter crew airlifted them to safety and the man and his dog were taken to emergency medical services.

My understanding is that they were rescued on July 11th, just a week ago.

An article on ageing

Musings on getting older and older!

I shall be 80 in November; I was born in London some six months before the end of World War II in Europe. I was the result of an affair between my father, Frederick, and my mother, Elizabeth. My father died in December, 1956 when I had recently become twelve years old.

I think that age spans have their own characteristics. So, for example, a person in their 20’s or their 40’s cannot sense what it is like to be in their 70’s or 80’s. Just a theory of mine and I have no evidence that this is a fact.

But as an introduction to today’s post it serves the task perfectly. And today’s post comes from The Conversation.

(And when I was writing this on the 11th July Biden was still the US President. My hunch is that he will not be by the 16th!)

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‘The immortal Gods alone have neither age nor death’

President Joe Biden, left, and first lady Jill Biden depart following a presidential debate with Donald Trump on June 27, 2024, in Atlanta. AP Photo/Gerald Herbert

Rachel Hadas, Rutgers University – Newark

President Joe Biden’s current fraught situation, showcasing both his weakness and his determination, is dramatic because it touches upon more than the political moment and more than one man’s character.

After his disastrous debate performance sparked calls for him to step aside as the Democratic presidential candidate, Biden’s position is not only inextricably entangled with issues of temperament and family dynamics. There’s also the challenge of making a crucial decision swiftly, at a moment when no decision is easy or clearly right.

And that’s not all. Biden has come to symbolize both the biological challenges and the existential poignancy of aging – of aging in power, certainly, but also just the unrelenting wear and tear of growing old.

The pressure of all these factors makes Biden a tragic figure.

Others reluctant to step down

To see this clamorous moment in the light of the past doesn’t make living in the present easier, but it does widen the perspective. Biden is far from the first person in a position of power who has been reluctant to step down – even when common sense or sheer weariness might dictate otherwise. In recent history, Supreme Court Justice Ruth Bader Ginsburg is often cited as an unfortunate example, and there are many other figures historians can cite.

Literature has always been concerned not only with people in power but also with the life cycle and the complexities of family relationships. Myths stay fresh and timeless; as we age, our understanding of a myth may change.

As the poet Eavan Boland writes in “The Pomegranate:”

“And the best thing about the legend is I can enter it anywhere. And have.”

The immense cohort of aging baby boomers, of whom I am one, is likely to sympathize with Biden because he has come to symbolize the vulnerability of aging – vulnerability to humiliation and, more subtly, to isolation.

A woman sitting in a room puts her face in her hands, covering her eyes.
Tonya Morris reacts at Tillie’s Lounge in Cincinnati during the presidential debate between President Joe Biden and the Republican candidate, former President Donald Trump, on June 27, 2024. AP Photo/Carolyn Kaster

Age ‘is not protection against suffering’

Greek poets like Homer and Sophocles present old age realistically.

In Homer’s “Iliad,” the elderly Nestor endlessly reminisces. Although listened to respectfully, he is a figure from an earlier generation whose role in war has dwindled to that of counselor.

Priam, the old king of Troy, heartbroken after the death of his son Hector, still finds the energy to berate his surviving sons as they clumsily hitch the mules that will draw the cart loaded with ransom so Priam can redeem his dead son’s body from the warrior who killed him, Achilles.

The subsequent moment of recognition between Priam and Achilles is one of the most poignant in literature, not least because the sight of old Priam reminds Achilles of his own aged father. Achilles might be expected to be enraged, but seeing Priam turns his anger to grief. Achilles knows he won’t see his father, Peleus, again. Being old is no protection against suffering; the aged Priam, mourning his son Hector, is assailed by the same desolate grief as Achilles.

In Shakespeare’s “Henry IV,” the once jovial and resilient Falstaff, publicly rejected and insulted by Prince Hal, is old, vulnerable – and alone. Macbeth, widowed and isolated, seems to have aged decades in the course of the play; he thinks forlornly of the comforts old age might be expected to provide: “honor, love, obedience, troops of friends.”

King Lear opens the tragedy named for him by ostensibly retiring. He announces his “intent/To shake all cares and business from our age,/Committing them to younger strengths, while we/Unburdened crawl toward death.”

But Lear refuses to cede control. Finally, as he sinks into confusion, he discovers humility and compassion – too late. Lear is reunited in prison with his loyal daughter Cordelia, who hasn’t been afraid to speak truth to power but who also has never ceased to love him – but she is summarily executed, and Lear, heartbroken, dies.

Decision requires ‘rare detachment’

Political commentator Bill Maher has called ageism the last respectable prejudice. It’s as if age and its accompanying disabilities create a force field keeping others at a distance. Or perhaps age bestows a universally recognized vulnerability on people who seemed powerful.

Either way, old people can seem somehow separated from the rest of us.

It’s hard even to imagine President Biden alone; on the contrary, he is apparently surrounded by loyal family and advisers. But the vulnerability of old age was on full display in the first presidential debate. News reports convey how hard it has become for anyone outside Biden’s tight circle to really see or know him.

One of the countless contrasts between Biden and Donald Trump is Biden’s almost sphinxlike unknowability, especially now. With Trump, as has frequently been noted, what you see is what you get. For better or for worse, his qualities are consistently on full display.

Age has been traditionally associated with wisdom, yet the wisdom old age can bestow seems out of reach for a figure still in the thick of politics. Lear’s “all-licensed” Fool rebukes the king: “Thou shouldst not have been old till thou had been wise.”

Only withdrawing from the fray might bestow some tranquility. But the vision to make the difficult decision to withdraw requires a kind of detachment that seems to be very rare in history, and not common in literature either.

An old man being comforted by two women, with a soldier in front of him.
The aged and blind Oedipus at Colonus, in an 1800 drawing by Bertel Thorvaldsen, says, ‘The immortal Gods alone have neither age nor death! All other things almighty Time disquiets.’ Sepia Times/Universal Images Group via Getty Images

‘Almighty time disquiets’

Greek tragedy does offer an eloquent example of just such wisdom.

Sophocles’s “Oedipus at Colonus” is a play about an old man written by an old man – Sophocles was in his 90s when the drama was presented.

The aged, self-blinded and self-exiled former king Oedipus, guided by his loyal daughter, finds himself in Colonus, a holy district outside Athens. When Theseus, the ruler of Athens, arrives on the scene, Oedipus’s words to him transcend both the immediate situation and Oedipus’s dire backstory.

“The immortal
Gods alone have neither age nor death!
All other things almighty Time disquiets.
Earth wastes away; the body wastes away;
Faith dies, distrust is born.
And imperceptibly the spirit changes
Between a man and his friend, or between two cities ….
… but time goes on,
Unmeasured Time, fathering numberless
Nights, unnumbered days ….”

By touching upon the shared human condition of mortality, as well as another universal, the inevitability of change, this speech bestows a stark tranquility on the situation.

Oedipus knows that he has come to Colonus to die, and his words convey a vision that seems to issue from beyond the grave. His detachment has an authority that now seems almost out of the reach of any of us, let alone a politician. But it’s good to remember that such qualities exist.

Of course this is a different moment. The looming juggernaut that Trump represents makes it hard for Biden’s supporters, or any Democrats, to be calm. Nevertheless, it’s useful to think about the potential strengths, as well as the vulnerabilities, of age.

The widespread anxiety now rampant among Biden’s supporters is sometimes mocked as unjustified panic. Time, as Oedipus might remind us, will tell. I personally find this anxiety touching and heartening for its humanity; there’s widespread compassion for Biden’s vulnerability.

In the ugly spectacle of American politics, it’s hard to keep humanity in sight. Literature can remind us of what we already know about growing old, about change, and about mortality.

Rachel Hadas, Professor of English, Rutgers University – Newark

This article is republished from The Conversation under a Creative Commons license. Read the original article.

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I cannot add anything to this first-class post!

Picture Parade Four Hundred and Forty

Memories of July 4th!

This was seen online in the afternoon of July 4th.

Dogs have appeared at U.K. polling stations wearing bows, rosettes and colourful leads as the public go to vote in the British General Election. The hashtag #dogsatpollingstations has become a highlight of election days for animal lovers on social media as people share photos of themselves exercising their pets and democratic rights at the same time. This year did not disappoint, with dogs on X, formerly known as Twitter, photographed in badges, bows and colourful leashes.

It is an alternative to the normal Picture Parade.

Introspection.

A recent article by George Monbiot gets me thinking.

George Monbiot is 61; his birthday is on January 27th. Thus he is 14 years younger than me. He is an experienced writer for The Guardian newspaper. Plus he has authored quite a few books and founded a charity, and given TED Talks, and I am sure more than this.

I read all of the articles that are published by him. His website is widely read. Please read his biography. Some of his many articles really get me thinking.

Some time ago I asked Mr. Monbiot for permission to republish his articles and that was granted. A small number of them have been republished on Learning from Dogs.

Today I want to republish an article that was presented on July 3rd.

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The Fight Against Oligarchy

Oligarchy is the default state of politics, and it is surging back. How do we stop it?

By George Monbiot, published in the Guardian  27th June 2024

We are about to return to normal politics. After 14 years of Tory corruption and misrule, a Labour government will put this country back on track. Justice and decency will resume, public services will be rebuilt, our global standing will be restored, we will revert to a familiar state. Or so the story goes.

What is the “normal” envisaged by pundits and politicians of the left and centre? It is the most anomalous politics in the history of the world. Consciously or otherwise, they hark back to a remarkable period, roughly 1945 to 1975, in which, in certain rich nations, wealth and power were distributed, almost everyone could aspire to decent housing, wages and conditions, public services were ambitious and well-funded and a robust economic safety net prevented destitution. There had never been a period like it in the prior history of the world, and there has not been one since. Even during that period, general prosperity in the rich nations was supported by extreme exploitation, coups and violence imposed on the poor nations. We lived in a bubble, limited in time and space, in which extraordinary things happened. Yet somehow we think of it as normal.

Those “normal” politics were the result of something known to economic historians as the “great compression”: a drastic reduction in inequality caused by two world wars. In many powerful countries, a combination of the physical destruction of assets, the loss of colonial and overseas possessions, inflation, very high taxes, wage and price controls, requisitioning and nationalisation required by the wartime economy, as well as the effects of rising democracy and labour organisation, greatly reduced the income and assets of the rich. It also greatly improved, once the wars had ended, the position of the poor. For several decades, we benefited from the aftermath of these great shocks. Now the effect has faded. We are returning to true “normality”.

The history of many centuries, including our own, shows that the default state of politics is not redistribution and general welfare, but a spiral of accumulation by the very rich, the extreme exploitation of labour, the seizure of common resources and exaction of rent for their use, extortion, coercion and violence. Normal is a society in which might is right. Normal is oligarchy.

In his magisterial book The Great Leveler, published in 2017, the historian Walter Scheidel explains that only four forces have ever significantly reversed inequality: mass-mobilisation warfare (such as the two world wars), total and violent revolution, state collapse and devastating plagues. Decisions, decisions.

He shows how warfare economies were turned into welfare economies, sometimes by force. For example, following the defeat of Japan, the US occupation government, led by General Douglas MacArthur, sought what it called “the democratization of Japanese economic institutions” to ensure “a wide distribution of income and ownership of the means of production and trade”. To this end, it imposed high property taxes, with a top marginal rate of 90%; broke up business conglomerates; demanded a labour union law enabling the right to organise and strike, and higher wages for workers; organised comprehensive land reform, which dissolved large holdings and distributed them to peasants; and introduced fiscal reform that led eventually to taxes on the highest incomes of 75% and an inheritance tax on the largest estates of 70%. These programmes resulted in the near-total destruction of income from capital and the creation in Japan of a political and economic democracy, almost from scratch.

All the major combatants were similarly transformed. In the US, the top rate of estate (inheritance) tax rose to 71% in 1941, and income tax to 94% in 1944. The National War Labor Board raised workers’ pay while holding down executive pay. Union membership soared. In the UK, the top rate of income tax was held at 98% from 1941 to 1952. It took decades to decline to current levels. A purchase tax on luxury goods was introduced in 1940, with rates that later rose to 100%. The share of incomes captured by the richest 0.1% fell from 7% in 1937 to just over 1% in 1975.

In the absence of one of the four great catastrophes, income and capital inexorably accumulate in the hands of the few, and oligarchy returns. Oligarchs are people who translate their inordinate economic power into inordinate political power. They build a politics that suits them. Scheidel shows that as inequality rises, so does polarisation and political dysfunction, both of which favour the very rich, as a competent, proactive state is a threat to their interests. Dysfunction is what the Tories delivered and Donald Trump promises.

Oligarchs seek the destruction of oversight, which is why UK bodies such as the Environment Agency and the Health and Safety Executive have been comprehensively gutted. The same desire was the driving force behind Brexit. They want the cessation of protest. They want a failing NHS, to justify privatisation. They want malleable politiciansand a tame BBC. They get what they want, distorting every aspect of national life. They pour money into neoliberal and far-right political movements, which help capital to solve its perennial problem: democracy. The arc of history bends towards injustice. But every so often it is broken over the knee of catastrophe.

If you want a return to the rich nations’ “normality” of 1945 to 1975 – in other words, to redistribution, a shared sense of national purpose, robust public services and a strong economic safety net, high employment and good wages – and I think most people would, you need a politics that is not just abnormal, but unprecedented. Snapping the arc of injustice would mean going way beyond Jeremy Corbyn’s 2019 manifesto, let alone Keir Starmer’s limp offering, which treads so carefully around the interests of the rich. We would need to do what the world wars did, without the violence and physical destruction: a peacetime MacArthur programme for overthrowing the oligarchs.

Political parties would need to overcome their fear of economic power: of the newspaper barons, the property developers, the fossil fuel companies, hedge funds, private equity bosses and assorted oligarchs who now fund and influence our politics. The longer we leave this confrontation, the more extreme and entrenched oligarchic power becomes. If we want even a modicum of democracy, equality, fairness and a functioning state, we need not the accommodation with economic power that Starmer seeks, but the mother of all battles with it.

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Let me repeat a sentence from the article: “Oligarchs are people who translate their inordinate economic power into inordinate political power.”

I am towards the end of my life. Whether or not things will change politically, as Monbiot suggests above, I do not know. But if asked to guess I would say probably not.

I would love to see a different, as in a better way, of us humans running things. I can’t put it better than how George Monbiot expressed it in that last sentence: “If we want even a modicum of democracy, equality, fairness and a functioning state, we need not the accommodation with economic power that Starmer seeks, but the mother of all battles with it.”

Finally, George Monbiot has a saying on his website: “I love not man the less, but Nature more.” I wish that were not the case, I wish oligarchy was a dead word, but Nature is so beautiful.

Photo by Daniel Beilinson on Unsplash

Independence Day

July 4th, 2024

From WikiPedia (in part):

Independence Day, known colloquially as the Fourth of July, is a federal holiday in the United States commemorating the Declaration of Independence, which was ratified by the Second Continental Congress on July 4, 1776, establishing the United States of America.

The Founding Father delegates of the Second Continental Congress declared that the Thirteen Colonies were no longer subject (and subordinate) to the monarch of BritainKing George III, and were now united, free, and independent states.[1] The Congress voted to approve independence by passing the Lee Resolution on July 2 and adopted the Declaration of Independence two days later, on July 4.

Photo by charlesdeluvio on Unsplash

This is home!

Reflections on Oregon.

Or more precisely Southern Oregon.

We live in a beautiful State.

Roughly 100 miles North-East of us is Crater Lake.

Photo by Anukrati Omar on Unsplash

It was formed when this former volcano, “which collapsed on itself during an eruption just 7,700 years ago and slowly filled with melted snow, now stands as Oregon’s only national park.”

At over 2,000 feet deep it is the deepest lake in the United States of America.

There is a website, 16 Reasons Why Oregon is the Best State in the Country, and Jean and I believe it. Do visit this web page.

Oregon has acres and acres of forest and wild lands.

Photo by Dan Meyers on Unsplash

Photo by Moss and Fog on Unsplash

Oregon has many truly wild places. Here is a photograph of one of Oregon’s famous waterfalls.

Photo by Chris Briggs on Unsplash

Here is a photo of the wild coast and the ocean.

Photo by KAL VISUALS on Unsplash

Photo by Jordan Steranka on Unsplash

As was said at the start, Jean and I live in a very beautiful part of America.

Plus the people are incredibly friendly.

Picture Parade Four Hundred and Thirty-Eight

Back to Unsplash!

Photo by Robert Koorenny on Unsplash

Photo by Tracey Hocking on Unsplash

Photo by Tadeusz Lakota on Unsplash

Photo by Marcus Löfvenberg on Unsplash

Photo by Nick Fewings on Unsplash

Photo by Kevin Noble on Unsplash

Photo by Vico Pradipta on Unsplash

That’s all for this week, and for the month of June.

See you again soon.

Do we understand our cosmos?

A recent article from The Conversation suggests not.

As much as I am interested in the cosmos my brain cannot tackle the subject with any form of intelligence.

Thus I really want to share this with you all, in the hope that some of you will appreciate the article.

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Scientists can’t agree on how fast the universe is expanding – why this matters so much for our understanding of the cosmos

Gemma Ware, The Conversation

It’s one of the biggest puzzles in cosmology. Why two different methods used to calculate the rate at which the universe is expanding don’t produce the same result. Known as the Hubble tension, the enigma suggests that there could be something wrong with the standard model of cosmology used to explain the forces in the universe.

Now, recent observations using the new James Webb Space Telescope (JWST) are shaking up the debate on how close the mystery is to being resolved.

In this episode of The Conversation Weekly podcast, two professors of astronomy explain why the Hubble tension matters so much for our understanding of the universe.

(The Conversation included two files that one could listen to but they could not be played directly. But I have left them in the post just in case.)

https://embed.acast.com/60087127b9687759d637bade/6669a6f9efa053001194ed11

https://shows.acast.com/60087127b9687759d637bade/6669a6f9efa053001194ed11

In February, the Nobel prize-winning physicist Adam Reiss, published a new paper. It said that new observations of far-away stars using the JWST matched those obtained by the Hubble Space Telescope.

These stars, called Cepheids, are commonly used in one method of calculating the rate at which the universe is expanding. Known as the local distance ladder, or cosmic distance ladder, this method has been around since observations first made by Edwin Hubble himself in 1929. And it generally produces a rate of expansion of around 73km per second per mega parsec.

But a second method, using predictions of the cosmic microwave background radiation left over by the Big Bang, has constantly arrived at a different number for the rate of expansion of the universe: 67km per second per mega parsec.

Reiss said that when the new data confirmed the earlier observations from the Hubble Space Telescope, the gap between the numbers remains unresolved. “What remains is the real and exciting possibility that we have misunderstood the universe,” he said.

A few months later, however, more data from the JWST, presented by Wendy Freedman, a physicist at the University of Chicago, using observations from a different set of stars, arrived at 69km per second per mega parsec, a number closer to the cosmic microwave background figure of 67. Freedman is excited that the numbers seem to be converging.

Vicent Martínez and Bernard Jones are fascinated by the Hubble tension. Jones is an emeritus professor of astronomy at the University of Groningen in the Netherlands. Martínez, his former student, is now a professor of astronomy and astrophysics at the University of València in Spain.

“The fundamental basis of science, what distinguishes science from science fiction, is our ability to verify the information we are getting,” explains Jones.

That’s why Martinez says the mystery of the Hubble tension is still driving people to:

Research and imagine experiments and organise huge projects with the complicated observation of the cosmos in order to understand what’s going on. At the end, this will affect your idea of the whole universe and probably you will need to change some fundamental ingredient of your cosmological model.

Martinez and Jones have just written a book, along with their co-author Virginia Trimble, about moments in history when scientists realised they’d got something very wrong, and had to readjust their way of thinking. Martínez thinks this could happen again with the Hubble tension:

It could happen that, for example, a new theory of gravity could solve the problem of dark energy or dark matter. We have to be open to those ideas.

Listen to Bernard Jones and Vicent Martínez talk more about the Hubble tension, and how it fits in the wider history of science, on The Conversation Weekly podcast. The episode also features an introduction from Lorena Sánchez, science editor at The Conversation in Spain.

Gemma Ware, Editor and Co-Host, The Conversation Weekly Podcast, The Conversation

This article is republished from The Conversation under a Creative Commons license. Read the original article.

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Fascinating, albeit much of this article a little beyond me. But still fascinating.