Archive for the ‘physics’ Category


Three New York wind projects were dropped after the massive wind tower they were to be based on was cancelled. This report notes that analysts say ‘bigger wind turbines tend to break more’. Planting ever-larger top-heavy objects on long thin poles in zones with potentially stronger winds clearly has its challenges. Even getting them to their site can be a major undertaking.
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The wind industry’s global race to make ever-bigger turbines stumbled to a sudden slowdown last week, jarring U.S. offshore wind projects, says E&E News.

When GE Vernova confirmed that it was canceling one of the largest wind turbines ever designed, it signaled a pause in an arms race that for years had led manufacturers to go higher, longer and wider when building towers, blades and other components.

Now, that decision is reverberating across U.S. efforts to build wind projects in the Atlantic.

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The researchers say the effect can be substantial and call it ‘a major part of the picture’. Under the optimum conditions of color, angle, and polarization “the evaporation rate is four times the thermal limit.” It was reported last year but this paper was only accepted last month. That report said: ‘The phenomenon might play a role in the formation and evolution of fog and clouds, and thus would be important to incorporate into climate models to improve their accuracy, the researchers say.’ The best incident angle for the light is 45°, according to the pre-print.
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It’s the most fundamental of processes—the evaporation of water from the surfaces of oceans and lakes, the burning off of fog in the morning sun, and the drying of briny ponds that leaves solid salt behind, says Massachusetts Institute of Technology (MIT, via Phys.org).

Evaporation is all around us, and humans have been observing it and making use of it for as long as we have existed.

And yet, it turns out, we’ve been missing a major part of the picture all along.

In a series of painstakingly precise experiments, a team of researchers at MIT has demonstrated that heat isn’t alone in causing water to evaporate.

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Mr. Burns blocks the sun


Bad luck for solar panel owners and users, and anything relying on photosynthesis. But as such umbrellas would be far too heavy to move even if they could be made, probably nothing to worry about. Just another climate alarm concoction in search of funding.
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A team of climate scientists wants to launch enormous umbrellas into space to reduce the Earth’s exposure to the sun and fight climate change, The New York Times reported Friday (via Climate Change Dispatch).

The underlying idea is that large parasols could be positioned in space such that they marginally reduce the intensity of sunlight the Earth receives and thereby mitigate some global warming, the Times reported.

To block out enough radiation, a single sunshade would need to be approximately the size of Argentina — nearly one million square miles — and would weigh about 2.5 million tons, so scientists are looking to prove the idea could work by first producing a 100-square foot prototype with the help of $10 to $20 million of funding.

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Ye Olde Universe
[image credit: Hubble / Wikipedia]


Or did it just confirm the unhappy status of the ‘dark energy’ seekers, long after Nobel prizes were handed out for its ‘discovery’? Quote: ‘despite much searching, astronomers have no clue what dark matter or dark energy are.’ A Nobel for having no clue – where’s the physics?
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For decades, measurements of the universe’s expansion have suggested a disparity known as the Hubble tension, which threatens to break cosmology as we know it. Can it be fixed? asks Live Science.

Now, on the eve of its second anniversary, a new finding by the James Webb Space Telescope has only entrenched the mystery.

Something is awry in our expanding cosmos.

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Dr Mike McCulloch has been making truly remarkable discoveries about some of the mysteries of the cosmos over the last two decades. He has answers to fundamental questions such as ‘what causes the force that resists the change in speed and direction of any mass?’, ‘why do observations indicate that the inertial force varies with acceleration in the outer reaches of galaxies?’ and ‘how can we tap into the implicated energy fields to generate propellant-less thrust, and potentially generate electrical energy to power our homes, industries and vehicles?’. His published papers cover the first two of these questions, and touch on the third, although there’s plenty more to be teased out of the implications of his Quantised Inertia theory. The third question is the acid test.

Mike believes science has to have practical, applicable results, and for the last few years, he has been successfully generating those at his lab in Plymouth University, funded by DARPA. He has been getting measurable thrust from purely electrical input. Other collaborating labs have similar results. Exciting times indeed.

But like many scientists who threaten the established and accepted theory in their field, his work has been largely ignored because it falsifies mainstream ‘dark matter’ theory, or dismissed because it ‘must be impossible’. Although he has got measurable results, DARPA funding is ending, and he has no more teaching work to return to at Plymouth University. Mike wants, as far as possible, to keep the ongoing developments of QI publicly accessible, by crowdfunding. He needs our help to fund and equip a new lab, and set up a ‘Horizon Institute’, online initially, to enable the collaboration of academics and citizen scientists. Please read his message below, and then I’ll let you know how you can help.

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Credit: airbus.com


If the headline seems puzzling, try the article that follows it. We’re taken back to the imaginary world of atmospheric ‘blankets’, forgetting to mention that the methane content of our air is less than 2000 parts per *billion* (= 2 per million).
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Most climate models do not yet account for a new UC Riverside discovery: methane traps a great deal of heat in Earth’s atmosphere, but also creates cooling clouds that offset 30% of the heat, says Phys.org.

Greenhouse gases like methane create a kind of blanket in the atmosphere, trapping heat from Earth’s surface, called longwave energy, and preventing it from radiating out into space. This makes the planet hotter. [Talkshop comment – according to what empirical evidence?]

“A blanket doesn’t create heat, unless it’s electric. You feel warm because the blanket inhibits your body’s ability to send its heat into the air. This is the same concept,” explained Robert Allen, UCR assistant professor of Earth sciences.

In addition to absorbing longwave energy, it turns out methane also absorbs incoming energy from the sun, known as shortwave energy. “This should warm the planet,” said Allen, who led the research project. “But counterintuitively, the shortwave absorption encourages changes in clouds that have a slight cooling effect.”

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Before getting too excited, note that the energy used was ‘enough to boil six kettles of water’, at vast expense and effort. Still some way to go to ‘save the planet‘, to borrow a time-worn phrase from climate melodrama.
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FUSION FIRST – Scientists have hailed a ‘true breakthrough’ as a fusion reaction has successfully generated more energy than was used to create it, says Imperial College London.

For over seventy years, scientists have been attempting to harness thermonuclear fusion – the power source of stars – to generate energy.

Fusion has the potential to produce vast quantities of clean energy using few resources, requiring only a small amount of fuel and generating limited carbon emissions.

Once a fusion plasma is ‘ignited,’ it will continue to burn for as long as it is held in place.

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Layers of Earth’s atmosphere


Have experts missed a huge tropical ozone hole that has existed since the 1980s? — asks Geographical. Or could it be more a question of definitions?
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In July, an extraordinary research paper, documenting a huge, previously undetected ozone hole over the tropics, prompted a flurry of news stories.

Said to be seven times the size of the well-known ozone hole over Antarctica, the discovery is cause for ‘great global concern’, according to Qing-Bin Lu, a professor at the University of Waterloo, Canada, and author of the report.

His research suggests that, unlike the Antarctic hole, which only opens in spring, the tropical hole remains open year-round, putting roughly half the world’s population at higher risk from ultraviolet radiation.

Most surprisingly of all, Lu claims that the hole has existed since the 1980s.

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I’m delighted Ned Nikolov and Karl Zeller have chosen the Talkshop as the venue for the publication of this new open peer review paper on climate sensitivity. Scientific advance at the cutting edge has always been the most important aim of this blog, and I think this paper truly is an advance in our understanding of the climate system and the factors which support and modulate surface temperature on Earth and other rocky planets. 

The paper is mathematically rigorous, but is also accessible to everyone, thanks to Ned and Karl’s exemplary effort to fully explain their concepts and definitions in terms which can be understood by any interested reader who has some familiarity with the climate debate. Building on the bedrock of their 2014 and 2017 papers, this new work extends the applicability and validates the postulates of those previous papers by examining the causes of variability in planetary surface temperature and incorporating the previous findings in quantifying and deriving equations to model them. They find that Earth is sensitive to changes in cloud cover, which affects the amount of solar shortwave radiation reaching the surface, but not very sensitive to changes in Total Solar Irradiance arriving at the top of the atmosphere. They also find that the sensitivity to changes in CO2 levels has been heavily overestimated by current climate models. They show that a doubling of atmospheric CO2 concentration from 280 ppm to 560 ppm will cause an undetectable global warming of 0.004K.

A PDF of the paper can be downloaded here:  ECS_Universal_Equations.

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Exact Formulas for Estimating the Equilibrium Climate Sensitivity of Rocky Planets & Moons to Total Solar Irradiance, Absorbed Shortwave Radiation, Planetary Albedo and Surface Atmospheric Pressure.
Ned Nikolov, Ph.D. and Karl Zeller, Ph.D.
April, 2022

1. Introduction

The term “Equilibrium Climate Sensitivity” (ECS) has become a synonym for the steady-state response of global surface temperature to a modeled long-wave radiative forcing caused by a doubling of atmospheric CO2 concentration with respect to an assumed pre-industrial level of 280 ppm. According to climate models based on the Greenhouse theory, an increase of atmospheric CO2 from 280 ppm to 560 ppm would produce a net radiative forcing (i.e. an atmospheric radiant-heat trapping) of 3.74 W m-2 (Gregory et al. 2004) resulting in a global surface warming between 2.5 K and 4.0 K with a central estimate of 3.0 K according to IPCC AR6 (see p. 11 in Climate Change 2021: The Physical Science Basis. Summary for Policymakers). This implies an average unit ECS of 3.0/3.74 = 0.8 K / (W m-2) with a range of 0.67 ≤ ECS ≤ 1.07 K / (W m-2). Contemporary climate science and IPCC Assessment Reports do not discuss global temperature sensitivities to changes in cloud albedo, absorbed solar radiation or total surface atmospheric pressure. Consequently, no equations have been derived/proposed thus far to calculate these sensitivities. Part of the reason is that variations of cloud albedo are typically viewed in modern climate science as internal feedback to a climatic change induced by external forcing such as increasing anthropogenic carbon emissions. This notion is based on the 19th-Century Greenhouse theory (Arrhenius 1896) adopted by IPCC, which attributes most of the observed warming during the 20th Century and especially over the past 40 years to rising atmospheric  CO2 concentrations believed to trap outgoing long-wave radiation in the Earth’s troposphere and reduce the rate of surface infrared cooling to Space.

However, a plethora of studies published during the past 15 years have shown through both satellite and surface observations that the absorption of solar radiation by the Earth-atmosphere system has increased significantly since 1982 due to a decreased cloud cover/albedo, a phenomenon often referred to as “global brightening” (e.g. Goode & Pallé 2007; Wild 2009; Herman et al. 2013; Stanhill et al. 2014; Hofer et al. 2017; Pfeifroth et al. 2018; Pokrovsky 2019Delgado-Bonal et al. 2020; Dübal & Vahrenholt 2021;  Yuan et al. 2021).

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Credit: NASA

H/T Tallbloke
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By Dr. Rudolph Kalveks — As the media, politicians and climate activists continue to circulate hysterical hot air from the Cop26 conference, the topic of climate change or anthropogenic global warming (AGW) has become an emotional one, increasingly detached from the thoughtful and meticulous process of theory development, calculation and observation that is supposed to characterise scientific endeavour.

It may come as a surprise to some that “The Science”, as expounded in the IPCC Summaries for Policymakers that inform conference participants, is not uncritically accepted by all scientists in the field, and that widely different views are held by a substantial cadre of experienced and eminent researchers.

Moreover, a multitude of peer-reviewed papers contradict many aspects of the IPCC’s alarmist narrative.

Furthermore, a coherent theory about the impact of changes in greenhouse gases (GHGs) is starting to emerge, one that is built up from the underlying physics, rather than extracted from fanciful computer simulations.

My aim here is to highlight some of the relevant papers and to inform any motivated layman who wishes to explore outside the dogmatic strictures of the mainstream narrative.

Let us start with an irrefutable example of the inability of climate models (general circulation models, GCMs) to provide meaningful projections.

Continued here.

Guest post from Doomberg. Original is posted at https://doomberg.substack.com/p/where-stuff-comes-from

this dovetails in sinister fashion with the basic idea that any sufficiently advanced technology cannot be distinguished from magic. highly evolved capitalism becomes such a technology and the largess and plenty it produces gets mistaken for a property of the universe rather than a made thing, a thing that must be created rather than simply reaped.” – el gato malo

Modern society is awash in stuff. There’s stuff at the grocery store. At the hardware store. At Amazon and eBay. We eat stuff, wear stuff, buy stuff, and store stuff. Click some buttons, swipe a card, tap a phone – and presto! Stuff appears, like magic.

At least for now.

We are a carbon-based species. Carbon forms the foundation of our bodies and the external world we experience. Almost everything we touch is carbon-based. As I type this, I’m sitting on a couch made predominantly from foamed polyurethane, my feet resting on a carpet made from synthetic nylon. I just sipped water from a bottle made of polyethylene terephthalate, which I then placed on a coffee table made of wood.

Not only is our stuff mostly based on carbon, but the energy required to manipulate materials – to make stuff – comes predominately from carbon-based feedstocks as well. While not all stuff is based itself on carbon – copper wire is made of copper, after all – we can’t make use of it without first extracting energy from carbon fuels. In other words, we can’t mine copper without carbon. Those excavators, dump trucks, and bulldozers aren’t going to run themselves.

Since energy is life, mastering the chemistry of carbon and harnessing the energy of stuff to make other stuff is core to the human endeavor.

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metofficecomputer

Weather forecasting technology

Maybe they need better ideas, not just more expensive modelling gear run by the same climate obsessives pushing worn-out theories that have never worked. Sales talk of ‘delivering the quantum leap’ sounds a bit thin after decades of posing as masters of climate understanding.
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Top climate scientists have admitted they failed to predict the intensity of the German floods and the North American heat dome, says BBC News.

They’ve correctly warned over decades that a fast-warming climate would bring worse bursts of rain and more damaging heatwaves.

But they say their computers are not powerful enough to accurately project the severity of those extremes.

They want governments to spend big on a shared climate super-computer.

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The Termination Event

Posted: June 12, 2021 by oldbrew in Cycles, physics, predictions
Tags:

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Testable science ideas here. What’s not to like?

“What can I say?” laughs McIntosh. “We’re heretics!”

H/T g2

Spaceweather.com

June 10, 2021: Something big may be about to happen on the sun. “We call it the Termination Event,” says Scott McIntosh, a solar physicist at the National Center for Atmospheric Research (NCAR), “and it’s very, very close to happening.”

If you’ve never heard of the Termination Event, you’re not alone.  Many researchers have never heard of it either. It’s a relatively new idea in solar physics championed by McIntosh and colleague Bob Leamon of the University of Maryland – Baltimore County. According to the two scientists, vast bands of magnetism are drifting across the surface of the sun. When oppositely-charged bands collide at the equator, they annihilate (or “terminate”). There’s no explosion; this is magnetism, not anti-matter. Nevertheless, the Termination Event is a big deal. It can kickstart the next solar cycle into a higher gear.

Above: Oppositely charged magnetic bands (red and blue) march toward the sun’s equator…

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Hindenburg

The LZ-129 Hindenburg, the famous Zeppelin, at Lakehurst Naval Air Station in 1936 [image credit: CIVIS TURDETANI / U.S. Department of the Navy, Bureau of Aeronautics]

As hydrogen is in the news these days as a potential ‘alternative’ fuel, heavily promoted by climate obsessives and others, this look back in history is vaguely topical and offers a fresh technical analysis based on experiments.
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On the evening of May 6, 1937, the largest aircraft ever built by mankind, a towering example of technological prowess, slipped through the stormy skies of New Jersey and prepared to land, says TechXplore.

The airship Hindenburg was nearing the end of a three-day voyage across the Atlantic Ocean from Frankfurt, Germany. It was a spectacle and a news event.

Onlookers and news crews gathered to watch the 800-foot-long behemoth touch down.

And then, in one horrifying half minute, it was all over. Flames erupted from the airship’s skin, fed by the flammable hydrogen gas that kept it aloft, and consumed the entire structure, ending 36 lives.

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Nobel prize-winning physicist CTR Wilson


‘Charles Thomson Rees Wilson, CH, FRS (14 February 1869 – 15 November 1959) was a Scottish physicist and meteorologist who won the Nobel Prize in Physics for his invention of the cloud chamber.
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The invention of the cloud chamber was by far Wilson’s signature accomplishment, earning him the Nobel Prize for Physics in 1927. The Cavendish laboratory praised him for the creation of “a novel and striking method of investigating the properties of ionized gases”. The cloud chamber allowed huge experimental leaps forward in the study of subatomic particles and the field of particle physics, generally. Some have credited Wilson with making the study of particles possible at all.’ — Wikipedia.

A potted biography, including cloud chamber images and a diagram of the global atmospheric electrical circuit, can be found here.

The link to the broadcast script is below the introduction.
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Before the last time I had to dive deeply into politics to defend the EU referendum result, I had an email conversation with Roy Spencer in an attempt to resolve the conflict between physicists like himself, who believe the radiative greenhouse theory is correct, but it’s effect small, and physicists like Ned Nikolov, who contend that the theory is fundamentally incorrect.

After a couple of to and fro emails I sent this response in Feb 2019, to which I never received a reply. It’s time we got this discussion back out in the open, because Boris’ green reset #netzero plan for the UK post Brexit and post pandemic is set to ruin our economy and cause untold suffering, deprivation, and death.

the lukewarmers have utterly failed to convince the fanatics that although they think their theory is correct (it isn’t, but that’s their misguided opinion), they’ve overestimated the magnitude of the effect.

It’s time they stopped supporting the fanatics by deploying false arguments against better theory which will exonerate CO2 and move the debate away from ridiculous and expensive ‘mitigation’, and forward to adaption to the effects of natural climatic change.

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Browsing twitter recently I ran across this short video of a solar flare shot a few days ago.

After asking for some clarification on frame rate I was really intrigued.

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Credit: weather.com


By what known physics could a few molecules of carbon dioxide upset the jet stream? A meteorologist is not impressed by such claims.

By Chris Martz | November 9, 2019
INTRODUCTION Just when wildfires weren’t enough, we now have people blaming cold weather on a warming climate, which seems quite contradictory.

In light of the Arctic outbreak in forecast this coming week, people like Phil Plait (who has since blocked me) took to Twitter (Figure 1) to claim that man-made climate change is causing frigid, Arctic air to be displaced south into the United States, Europe, and Asia.

His argument, which is supported by some climate scientists, suggests that man-made global warming causes the polar jet stream to destabilize causing it to become wavy rather than zonal, sending Arctic air southward into the mid-latitude regions.

He also stated that without global warming, the polar air would stay near the north pole.

Both of these claims are exactly backwards from reality and are not supported by weather dynamics, the global warming theory, or statistical observations in long-term temperature data.

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Something of a mystery developing here. Open season for theories.

Spaceweather.com

June 11, 2019: On June 8th and 9th, many people who have never previously heard of “noctilucent clouds” (NLCs) found themselves eagerly taking pictures of them–from moving cars, through city lights, using cell phones and iPads. “I have never seen clouds like this before!” says Tucker Shannon, who took this picture from Corvallis, Oregon:

“I heard that they may have been seeded by meteoroids,” says Shannon.

That’s correct. NLCs are Earth’s highest clouds. Seeded by meteoroids, they float at the edge of space more than 80 km above the planet’s surface. The clouds are very cold and filled with tiny ice crystals. When sunbeams hit those crystals, they glow electric-blue.

Noctilucent clouds used to be a polar phenomenon. In recent years, however, researchers have noticed their electric-blue forms creeping south. Is it climate change? Or the solar cycle? No one knows for sure.

This past weekend…

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Not what some might have imagined perhaps. Researchers found that temperature difference between the surface and the liquid was less important than ‘the difference in pressure between the liquid surface and the ambient vapor’.

For the first time, MIT scientists have analyzed the evaporation process in detail at a molecular level and determined the physics of evaporation, reports Tech Explorist.

Evaporation is the process by which water changes from a liquid to a gas or vapor. The process is the primary path for water to move from the liquid state back to the water cycle as atmospheric water vapor.

Evaporation commonly occurs in everyday life. When you get out of the shower, the water on your body evaporates as you dry. If you leave a glass of water out, the water level will slowly decrease as the water evaporates.

For the first time, MIT scientists have analyzed the evaporation process in detail at a molecular level. For this, they used a new technique to control and detect temperatures at the surface of an evaporating liquid. Doing this, they were able to identify a set of universal characteristics involving time, pressure and temperature changes that determine the details of the evaporation process.

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