Soundproofing for an air conditioner/heat pump (success story)

We had a Princess and the Pea situation in our house in which a moderately quiet A/C condenser next to a bedroom was deemed too loud, especially when clicking on. This is a high-end Carrier-built unit, so it is somewhat louder than a Japanese split-system, but quieter than almost anything else U.S.-built.

We were able to eliminate the annoyance with a blanket from Acoustical Solutions that we hung on the wall adjacent to the condensers (quilted part facing the A/C unit; smooth part against the wall). We also wrapped one that was roughly the same height as the condenser around the side so as to block transmission to a window. It would be a lot more attractive it we built a wooden hutch around it, but it is highly functional just hung on a metal fence U-post (less than $10 from any hardware store).

We bought the ABBC-13 two-inch thick “AudioSeal” blankets, one 96″x54″ (custom made to have the grommets on the long side) and one 54″x54″. Total cost, including shipping and Maskachusetts sales tax, was $890. We’ve had them outdoors through one New England winter and they still look good.

Leaving this here in case anyone is searching for a similar solution.

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The Ever Given’s interaction with the Suez Canal

“The bank effect and the big boat blocking the Suez” (FT, mostly paywalled, but the link might work because I’ve included a Facebook ID) is interesting and reveals some similarities to Queen Elizabeth 2‘s grounding off Cape Cod, in which the ship dug a 9′ hole in the water by traveling at 25 knots. Some excerpts:

The canal has been getting wider and deeper over time…

But it is not so wide/deep that displaced water can be ignored.

Is it time to read Parting the Desert: The Creation of the Suez Canal? (Remember that the Pharaohs who purportedly oppressed the Jews built this first!)

Related:

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The Brave New World of Human-carrying Drones will have the same dashboard as the old world

“Joby Picks Garmin G3000 For eVTOL” (Avweb) suggests that the exciting new world of drones, which I hope will have enough software intelligence to prevent flying into obstacles (see New York helicopter crash: why not robot intelligence? and Aviation weather reports at the time of Kobe Bryant crash), will have the same dashboard as today’s business jets: a Garmin G3000 (seemingly way more complex than it needs to be).

I’m wondering if this will extend the life of traditional flight schools using traditional trainer airplanes and helicopters. If a lot of our skills translate into the Super Drone world (I’m hopeful that “eVTOL” is not the final term for this category of aircraft), perhaps folks with standard pilot certificates will still have a role to play.

Here’s what the G3000 looks like inside a Cirrus Vision Jet (three touch screens on the bottom that control the two non-touch screens on top):

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Why not heated furniture to fight coronaplague?

In their righteous muscular efforts to “control” coronavirus, some state governors and city mayors have ordered restaurants shut down, except for outdoor dining. In response, restaurants have built four-sided tents filled with CO2-emitting propane heaters. It is unclear why this is different from being indoors, other than the lack of a real HVAC system. The tent sides are necessary, though, because otherwise the propane heat will blow away.

Why not heat the customers instead of the air?

Back in 2010, I wrote Heated Furniture to Save Energy?

A lot of cars have heated seats. When the seat heater is on, most drivers will set the interior temperature 3-7 degrees lower than with the seat heater off. Why not apply the same technology to houses?

Imagine being at home in a 65-degree house. Even in a T-shirt and jeans, it would probably be comfortable to walk around, stir a pot on the stove, carry laundry, scrub and clean, walk on a treadmill while typing on a computer (as I’m doing now!). However, if one were to sit down and read a book, it would begin to seem cold. Why not install heat in all of the seats and beds of the house? And sensors to turn the heat on and off automatically? In a lot of ways, this would be more comfortable than a current house because the air temperature would be set for actively moving around while the seat temperature would be set for sedentary activities.

There is a fine line between brilliant and stupid, of course, but could it be that coronaplague has pushed this idea over the line?

A Dutch company, sit & heat, seems to have thought of this: heated cushions that can fit into a standard frame. Serta makes a chair-shaped electric quilt (could not survive outdoors) for only $64. A plastic chair with a built-in 750-watt heater is $900 (Galanter & Jones; they have sofas too at roughly $6,000 and claim they are “cast stone”).

If heated chairs were mass-produced in Asia, presumably the cost per chair would be only about $100 more than a regular outdoor chair. That should be affordable for a restaurant.

Related:

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Heated eyeglasses for Age of Faith (in masks)?

We in the American Church of Shutdown put our faith in masks, for they shall preserve us from the coronaplague, even as they have preserved those in Peru, Spain, France, and other countries with strict mask laws and high compliance rates.

In New England, however, now that the weather is cold, mask+eyeglasses = fog.

What about this idea: heated eyeglasses to prevent fogging. Bose managed to get some batteries into ordinary-looking eyeglasses (“Frames”). Is it hopeless to imagine that sufficient battery power could be mustered to heat the lenses for as much time as people spend outdoors in the fall, winter, and early spring?

Separately, now that #Science tells us that coronaplague is spread via aerosols, will people who directly experience eyeglass fogging begin to develop heretical beliefs that masking the general population might be ineffective against the spread of Covid-19?

Related:

  • battery-powered face mask (to reduce breathing effort) from LG with 8-hour battery life
  • U.S. Patent 5,319,397, “Defogging eyeglasses”: Eyeglasses worn in winter weather conditions are subject to fogging due to condensation of water vapor. A method of removing condensation from eyeglasses is provided. The method involves heating the lenses of the eyeglasses, by making the lenses a part of an electrical circuit. Electric current is supplied to the electric circuit from a power source external to the eyeglasses. The size and weight of the power source may be minimized by utilizing a timer or a power regulator. A smaller power source is also made possible by selectively heating the lenses, applying more power in the area of the lenses most likely to experience fogging. (this guy stole my idea, it seems, with this filed-in-1992 patent, and there is a massive battery dongle)
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Nobel Peace Prize should have gone to network engineers and sysadmins?

Despite having engineered the first two Middle East peace agreements in the 21st century, Donald Trump has apparently failed to qualify for the Nobel Peace Prize (maybe if he advocated for the deportation of Muslims, he could join Aung San Suu Kyi in the ranks of the winners?).

Who got the award? Some highly paid bureaucrats at the United Nations who take money that other people worked hard to earn, spend the money on food, and then hand the food out (BBC). This is analogous to borrowing a neighbor’s car, giving it to non-profit org (I recommend Harvard or MIT!), and donning the mantle of pure Jesus-like charity.

Readers: Who should have gotten the award, if not these UN bureaucrats who were simply doing the job for which they were hired and paid? (or maybe you want to argue that they deserved it!)

My suggestion: The network engineers and sysadmins that enabled richer people all over the world to cower in place while enjoying streaming video entertainment, Zoom and similar video collaboration tools, and other services that we would have expected to fall over in the face of a sudden 10X boost in demand. How is it “peace”, though? Consider that people from different nations have been able to continue to work together despite travel bans, thus promoting international trade and cooperation. There would surely be a lot more domestic strife and violence if locked-down people couldn’t reach out electronically and/or zone out with Netflix. Why not recognize the people who built the Verizon and Comcast networks, Amazon Web Services, and similar?

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Midnight in Chernobyl: Helicopter heroes

Suggested reading for 9/11, in which I hope we remember those who ran towards the stricken towers rather than following instinct and running away: Midnight in Chernobyl: The Untold Story of the World’s Greatest Nuclear Disaster Kindle Edition, by Adam Higginbotham. This follows my general rule that the only good popular books on science and engineering are written by British authors, who tend to assume that their audience is actually capable of comprehending some of the technical and scientific points.

The heroism in the book is inspiring. I was partway through this book when a scheduled flight to Upstate New York came up. There was a 40-knot headwind which would, I knew, combine with the mountains and hills to form turbulence. The FAA had issued a warning for moderate turbulence below 10,000′. The trip was a favor to friends who wanted to look at an antique wooden boat for sale. I thought about wimping out on two hours of bumps, but then said “If the Soviet firefighters and nuclear plant ran toward Chernobyl Reactor 4 rather than away, I can handle a bit of discomfort.”

A lot of the workers in the plant behaved heroically, trying to resupply what they thought was left of the exploded reactor with cooling water. They knew that they were going to receive lethal doses of radiation, but they strove to reach manual valves and controls in hopes of saving fellow citizens. About 60 of these men died within a month (Wikipedia).

Although there was no shortage of heroes following this explosion, I had never realized the heroic actions of Soviet helicopter crews. They flew directly into the worst of the radioactive cloud to drop, by hand, bags of boron-containing sand, straight down into the ruined core. “Historians estimate that about 600 Soviet pilots risked dangerous levels of radiation to fly the thousands of flights needed to cover reactor No. 4 in this attempt to seal off radiation.” (Wikipedia, which also notes that the efforts might not have yielded significant results; as with coronaplague, when the guy running the helicopter operation was told that it was futile, he said “we have to be seen to be doing something”)

From chernobylgallery.com:

It is a good book. I haven’t seen the HBO series. What do folks think of it?

Circling back to 9/11, the New Yorker ran a good article on Rick Rescorla, who went into the World Trade Center to get people out.

Related:

  • the cause of the accident (Chernobyl Gallery)
  • “How HBO Got It Wrong On Chernobyl” (Forbes): 2 immediate, non-radiation deaths; 29 early fatalities from radiation (ARS) within 4 months from radiation, burns and smoke inhalation, 19 late adult fatalities presumably from radiation over the next 20 years, although this number is within the normal incidence of cancer mortality in this group, which is about 1% per year, and 9 late child fatalities resulting in thyroid cancer, presumably from radiation.
  • Wikipedia: There is consensus that a total of approximately 30 men died from immediate blast trauma and acute radiation syndrome (ARS) in the seconds to months after the disaster, respectively, with 60 in total in the decades hence, inclusive of later radiation induced cancer.[2][3][4] However, there is considerable debate concerning the accurate number of projected deaths due to the disaster’s long-term health effects; long-term death estimates range from up to 4,000 (per the 2005 and 2006 conclusions of a joint consortium of the United Nations) for the most exposed people of Ukraine, Belarus, and Russia, to 16,000 in total for all those exposed on the entire continent of Europe, with figures as high as 60,000 when including the relatively minor effects around the globe
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Solar electricity at 1.35 cents/kWh in Abu Dhabi

I haven’t been getting a good supply of climate change alarmism and panic due to coronapanic dominating the media. Here’s an item that I missed: the next big solar project in Abu Dhabi will deliver power for 1.35 cents/kWH (cleantechnica).

Related:

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Saving lives with traffic circles

Back in March, I wondered “Why do we care about COVID-19 deaths more than driving-related deaths?” and closed with

What is the answer? Why do we accept that hundreds of thousands of Americans will die in the next 10-20 years because of our failure to invest in engineering and infrastructure today, but we can’t accept that up to hundreds of thousands of Americans will die in the next year because we didn’t do a sufficiently thorough shutdown?

Is it too soon to start asking what we could do to save lives if we invested coronapanic-scale money on something other than coronapanic?

“For Traffic Safety, Roundabouts Run Circles Around Stoplights” (Strxur):

Jim Brainard, the city’s mayor since 1996, has made roundabouts Carmel’s most characteristic feature. Within the 48-square-mile city of 100,000, located just northwest of the state’s capital of Indianapolis, Brainard has built 132 roundabouts. He’s also become America’s—and perhaps the world’s—most adamant cheerleader for roundabout adoption.

“Roundabouts have reduced traffic fatalities by 90% in Carmel,” said Brainard, a lawyer by training. “The U.S. average fatality rate per 100,000 people is 14. It tends to be higher in suburban areas because the roads are built wider for faster speeds. Indianapolis has done a little bit better than normal—11.7 per 100,000. The average in Carmel is two.”

Now that the U.S. will have to give up on public transport #BecauseCorona, is there hope for getting more flow through our existing road network to accommodate the existing 330 million plus the next 100 million immigrants?

The smaller the circles are, the safer they become. “We have higher crash rates in our double lane roundabouts then our single lane roundabouts,” Brainard said. “But they’re still a vast improvement over stoplights. We can move 50% more cars per hour through roundabouts than we could through stoplights. If you have constant flow, you don’t have to add more lanes.”

These can’t be retrofit easily to cities, but if the future of America is suburban (#BecauseCorona), maybe this is part of the answer!

From the Irish Museum of Modern Art, Dublin, 2019, evidence of a bad traffic light encounter?

The exhibits on the bad shape that the world was in, circa June 2019.

Do we credit these artists for prescience? The “Vague Anxiety” is no longer vague! “Acts of Mourning” is no longer a metaphor, as only 99.965 percent of the Irish people remain alive, the remaining 0.0035 percent having been killed by Covid-19.

From the bookstore, is it possible this would be considered insulting by those who call themselves “feminist”?

The rest of the bookstore was unobjectionable, except to those who had faith that public-key encryption would enable a secure Internet.

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What if Thomas Edison were alive today?

Edison by Edmund Morris, gives us some hints as to how Thomas Edison might have dealt with our society’s challenges today. (Below, Edison’s workshop, transported to Michigan by Henry Ford and now part of Greenfield Village.)

Although he was an early enthusiast for aviation, trying to build a helicopter in the 1880s, Edison (1847-1931) actually lived (and continued to work hard and effectively) through the period of the most rapid advances in aviation. He seems not to have contributed anything significant to the development of flying machines.

One thing that I learned from the book is that Edison loved huge projects and was not afraid of doing things at scale. He put about $2 million and years of work into trying to mine iron ore in New Jersey and then mill it profitably. From the early 1890s:

A party of inspectors sent by Engineering and Mining Journal toured the plant early in the fall. Although some sections were idled for refurbishment and Edison was coy about showing any of his new machines, they could see that he already excelled at quarrying and magnetic separation, if not yet in the difficult processes of crushing and refinement. They were particularly impressed with his cableway system, every suspended “skip” delivering four tons of rock to the crushers at only twelve cents a load. But they predicted that in view of the low iron content of local ore, Edison would still have to spend a fortune and deploy “the utmost resources of engineering skill” to compete with Mesabi ore at 64 percent iron. “With his surpassing genius [and] capacity for taking infinite pains, it cannot be doubted that he will ultimately achieve success.”

In July Edison learned that his mining venture had so far cost him $850,000, including some $100,000 that could not be accounted for. A profit-killing amount of money was being lavished on labor that simply loaded and unloaded rock at either end of the conveyors. The jaw crushers took too long to do their work and often broke down, necessitating expensive repairs. The magnetic separators, plagued by screening problems, were concentrating only 47 percent iron—far less than the 66 or 70 percent he needed to match the richness of Great Lakes ore. He was still digesting this information when a stockhouse under construction at Ogden collapsed, killing five men and injuring twelve. Lawsuits alleging negligence were filed by bereaved families.106 A newspaper clipping he carried in his wallet read, “Thomas Edison is a happy and healthy man. He does not worry.” As usual he countered the pull of bad news by pushing forward harder. Rather than continue to “improve” Ogden with ad hoc adjustments, he increased the capital of its parent company to $1.25 million, then shut the plant for a tear-down rebuild that would expand it enormously and make it a showpiece of automated design. No sooner had a new separator house gone up than he decided it needed some screening towers, and should be constructed all over again.

Given what we now know about the ore near Lake Superior (ore in the water of Tahquamenon Falls, below, from Travels with Samantha), the idea seems laughable today and, indeed, it was a complete failure. Nonetheless, it was amazing how many problems Edison was able to solve.

My theory about what he would be working on today, therefore, is geoengineering. He would take complaints about a warming planet as inspiration to work in the lab and then build infrastructure on the scale of the largest mines and power plants.

How about coronaplague? Edison did like to jump into solving problems that society perceived as urgent. But what kind of machine would be useful for fighting the plague? Big shade structures to move activities outdoors? Edison did put a lot of effort into “tornado-proof concrete houses”:

Last May’s catastrophic earthquake in San Francisco revived an idea he had had when the cement mill was first ready to roll. He saw low-cost, molded concrete houses replacing the fragile wooden boxes in which most Americans lived—houses that contractors would mix from cement (with a colloidal additive for grit suspension) and spill on the spot into prefabricated forms. A three-story house could be poured in six hours and set in less than a week.

He had to admit that the individual kits, consisting of nickel-plated cast iron parts, would be expensive, at around $25,000 apiece. But they would pay for themselves in frequency of use and universality of detail, molding mantelpieces, banisters, dormer windows, conduits for wiring, “and even bathtubs.” Having made the investment, a contractor could pour a new house every four days. Each could be sold for $500 or $600, enabling millions of low-income Americans to become homeowners for the first time, with no need to worry about earthquakes, hurricanes, or fire. “I will see this innovation a commonplace fact,” Edison promised, “even though I am in my sixtieth year.”

What about a wearable device that would deflect the evil coronavirus away from a person’s mouth and nose, but without obstructing breathing the way that a mask does?

Where would Edison have stood on this year’s Presidential campaign? “Edison had always been a loyal Republican,” writes Morris, but quotes Edison explaining why he voted for Teddy Roosevelt whose statue was just toppled in Manhattan: “I’m a Progressive, because I’m young at sixty-five,” he said. “And this is a young man’s movement. There are a lot of people who die in the head before they are fifty. They’re the ones who get shocked if you propose anything that wasn’t going when they were boys.” Morris says that “Edison had come to despise government bureaucrats, seeing them as a blight on democracy,” but perhaps Edison’s Progressive streak would have led him to support Bernie nonetheless!

On the third hand, Edison would probably not have been able to hold a job in the present-day U.S.:

Relations between him and [son] Charles warmed to the extent they could resume their old exchange of “negro jokes.”

Wikipedia points out that Edison married a subordinate whom we would today call “underage”:

On December 25, 1871, at the age of 24, Edison married 16-year-old Mary Stilwell (1855–1884), whom he had met two months earlier; she was an employee at one of his shops.

Mary likely died, only 28 years old, in the modern American manner. The author quotes from a contemporary source:

At the request of Mr. Edison she took a trip to Florida last winter. Instead of obtaining relief she fell victim to gastritis, due to the peculiar atmosphere or perhaps the long acquaintance with morphine. She returned to Menlo Park in a more troubled condition. Her pain intensified, and at times she was almost frantic. Morphia was the only remedy, and naturally she tried to increase the quantity prescribed by the doctors. From the careless word dropped by [a] friend of the family it was more than intimated that an overdose of morphine swallowed in a moment of frenzy caused by pain greater than she could bear brought on her untimely death. The doctor in attendance said she died of congestion of the brain. When a reporter put the question to him he positively asserted that it was the immediate cause, but about the more remote causes he preferred to remain silent.

(1.5 years later, Edison was 39 and married Mina, age 20.)

What about shutting down schools, society, and the economy for three months so as to end up with the same death rate from Covid-19 as Sweden?

as Edison lay dying [in 1931, age 84], it was suggested to President Hoover that the entire electrical system of the United States should be shut off for one minute on the night of his interment. But Hoover realized that such a gesture would immobilize the nation and quite possibly kill countless people.

Readers: Fun speculation for today… suppose that Thomas Edison were alive today, age 40, and had $1 billion available to invest. What problem would he attack?

More: Read Edison by Edmund Morris.

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