#Hope Technologies

[hinamie]

ṇ̵̛̱͌̅̃͛̔o̴̮̓̀͂́̃_̴̛̲́s̷͈̋̈́̄̋͠ị̶͔̗̐͐̐̒̕g̵̛̱̘̣̑͂ņ̴̰͔̘͇̏̒̓̇͠͝a̸̜̥̩̭͋̌ḷ̶͔̖͗͋͛͛̃͆

[reasonsforhope]

"A team of researchers at Washington University in St. Louis has developed a real-time air monitor that can detect any of the SARS-CoV-2 virus variants that are present in a room in about 5 minutes.

The proof-of-concept device was created by researchers from the McKelvey School of Engineering and the School of Medicine at Washington University...

The results are contained in a July 10 publication in Nature Communications that provides details about how the technology works.

The device holds promise as a breakthrough that - when commercially available - could be used in hospitals and health care facilities, schools, congregate living quarters, and other public places to help detect not only the SARS-CoV-2 virus, but other respiratory virus aerosol such as influenza and respiratory syncytial virus (RSV) as well.

“There is nothing at the moment that tells us how safe a room is,” Cirrito said, in the university’s news release. “If you are in a room with 100 people, you don’t want to find out five days later whether you could be sick or not. The idea with this device is that you can know essentially in real time, or every 5 minutes, if there is a live virus in the air.”

How It Works

The team combined expertise in biosensing with knowhow in designing instruments that measure the toxicity of air. The resulting device is an air sampler that operates based on what’s called “wet cyclone technology.” Air is sucked into the sampler at very high speeds and is then mixed centrifugally with a fluid containing a nanobody that recognizes the spike protein from the SARS-CoV-2 virus. That fluid, which lines the walls of the sampler, creates a surface vortex that traps the virus aerosols. The wet cyclone sampler has a pump that collects the fluid and sends it to the biosensor for detection of the virus using electrochemistry.

The success of the instrument is linked to the extremely high velocity it generates - the monitor has a flow rate of about 1,000 liters per minute - allowing it to sample a much larger volume of air over a 5-minute collection period than what is possible with currently available commercial samplers. It’s also compact - about one foot wide and 10 inches tall - and lights up when a virus is detected, alerting users to increase airflow or circulation in the room.

Testing the Monitor

To test the monitor, the team placed it in the apartments of two Covid-positive patients. The real-time air samples from the bedrooms were then compared with air samples collected from a virus-free control room. The device detected the RNA of the virus in the air samples from the bedrooms but did not detect any in the control air samples.

In laboratory experiments that aerosolized SARS-CoV-2 into a room-sized chamber, the wet cyclone and biosensor were able to detect varying levels of airborne virus concentrations after only a few minutes of sampling, according to the study.

“We are starting with SARS-CoV-2, but there are plans to also measure influenza, RSV, rhinovirus and other top pathogens that routinely infect people,” Cirrito said. “In a hospital setting, the monitor could be used to measure for staph or strep, which cause all kinds of complications for patients. This could really have a major impact on people’s health.”

The Washington University team is now working to commercialize the air quality monitor."

-via Forbes, July 11, 2023

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Holy shit. I know it's still early in the technology and more testing will inevitably be needed but holy shit.

Literally, if it bears out, this could revolutionize medicine. And maybe let immunocompromised people fucking go places again

Also, for those who don't know, Nature Communications is a very prestigious scientific journal that focuses on Pretty Big Deal research. Their review process is incredibly rigorous. This is an absolutely HUGE credibility boost to this research and prototype

[crtastrophe]

Kidpix commission for @incrediblysincere!

[hope-for-the-planet]

It took 90 days for the fungi to degrade 27 per cent of the plastic tested, and about 140 days to completely break it down, after the samples were exposed to ultraviolet rays or heat.

Chemical engineering professor Ali Abbas, who supervised the research team, said the findings were significant.

"It's the highest degradation rate reported in the literature that we know in the world," the professor said. 

From ABC News Australia

[labyrinth-walls-tiny-worm]

[kiddokori]

they gave link a fuckjng hoverboard

[666news-and-horoscopes]

[ilovedthestars]

A thought I’ve been having: While it's important to recognize the long history of many current queer identities (and the even longer history of people who lived outside of the straight, cis, allo “norm”) I think it's also important to remember that a label or identity doesn't have to be old to be, for lack of a better word, real.

This post that i reblogged a little while ago about asexuality and its history in the LGBTQ+ rights movement and before is really good and really important. As i've thought about it more, though, it makes me wonder why we need to prove that our labels have "always existed." In the case of asexuality, that post is pushing back against exclusionists who say that asexuality was “made up on the internet” and is therefore invalid. The post proves that untrue, which is important, because it takes away a tool for exclusionists.

But aromanticism, a label & community with a lot of overlap & solidarity with asexuality, was not a label that existed during Stonewall and the subsequent movement. It was coined a couple decades ago, on internet forums. While the phrasing is dismissive, it would be technically accurate to say that it was “made up on the internet.” To be very clear, I’m not agreeing with the exclusionists here—I’m aromantic myself. What I’m asking is, why does being a relatively recently coined label make it any less real or valid for people to identify with?

I think this emphasis on historical precedent is what leads to some of the attempts to label historical figures with modern terminology. If we can say someone who lived 100 or 1000 years ago was gay, or nonbinary, or asexual, or whatever, then that grants the identity legitimacy. but that's not the terminology they would have used then, and we have no way of knowing how, or if, any historical person's experiences would fit into modern terminology.

There's an element of "the map is not the territory" here, you know? Like this really good post says, labels are social technologies. There's a tendency in the modern Western queer community to act like in the last few decades the "truth" about how genders and orientations work has become more widespread and accepted. But that leaves out all the cultures, both historical and modern, that use a model of gender and sexuality that doesn't map neatly to LGBTQ+ identities but is nonetheless far more nuanced than "there are two genders, man and woman, and everyone is allo and straight." Those systems aren’t any more or less “true” than the system of gay/bi/pan/etc and straight, cis and trans, aro/ace and allo.

I guess what I’m saying is, and please bear with me here, “gay” people have not always existed. “Nonbinary” people have not always existed. “Asexual” people have not always existed. But people who fell in love with and had sex with others of the same gender have always existed. People who would not have identified themselves as either men or women have always existed. People who didn’t prioritize sex (and/or romance) as important parts of their lives have always existed. In the grand scheme of human existence, all our labels are new, and that’s okay. In another hundred or thousand years we’ll have completely different ways of thinking about gender and sexuality, and that’ll be okay too. Our labels can still be meaningful to us and our experiences right now, and that makes them real and important no matter how new they are.

We have a history, and we should not let it be erased. But we don’t need a history for our experiences and ways of describing ourselves to be real, right now.

[universe-of-peoples]

I think I’ve been disappointed by Super Bowl halftime shows ever since Katy Perry set the bar too high in 2015. Like, come on. The aerial entrance? The giant moving light-up tiger? Fricken Left Shark which became a meme. All the outfit changes. Like don’t get me wrong there have been some cool half-time shows since then, but not on Katy Perry’s level.

[moodysnowflake]

Something caught my attention while watching Vash launching the rock upward in episode 1.

His arm flashes neon green from shoulder to wrist while he's swinging it up; likely, a power surge to assure the rock would have gone in position quickly.

But then, when the shot widens and focuses on him pointing the gun, he has only his right arm raised.

In fact, for a brief moment, you can see him looking down at his left limb, which is kinda flopping dead, like on...cool-down? Sort of?

It seems he waited (or had to wait) some seconds to hold it up again to stabilise the shot.

I wonder if the arm overheated. If it did, boy that would have felt not comfortable on both the nerves and the arm-lock.

[godisaknife]

angels and technology moodboard for anon

[directactionforhope]

Less technology used for evil, more of this shit

[reasonsforhope]

"A 1-megawatt sand battery that can store up to 100 megawatt hours of thermal energy will be 10 times larger than a prototype already in use.

The new sand battery will eliminate the need for oil-based energy consumption for the entire town of town of Pornainen, Finland.

Sand gets charged with clean electricity and stored for use within a local grid.

Finland is doing sand batteries big. Polar Night Energy already showed off an early commercialized version of a sand battery in Kankaanpää in 2022, but a new sand battery 10 times that size is about to fully rid the town of Pornainen, Finland of its need for oil-based energy.

In cooperation with the local Finnish district heating company Loviisan Lämpö, Polar Night Energy will develop a 1-megawatt sand battery capable of storing up to 100 megawatt hours of thermal energy.

“With the sand battery,” Mikko Paajanen, CEO of Loviisan Lämpö, said in a statement, “we can significantly reduce energy produced by combustion and completely eliminate the use of oil.”

Polar Night Energy introduced the first commercial sand battery in 2022, with local energy utility Vatajankoski. “Its main purpose is to work as a high-power and high-capacity reservoir for excess wind and solar energy,” Markku Ylönen, Polar Nigh Energy’s co-founder and CTO, said in a statement at the time. “The energy is stored as heat, which can be used to heat homes, or to provide hot steam and high temperature process heat to industries that are often fossil-fuel dependent.” ...

Sand—a high-density, low-cost material that the construction industry discards [Note: 6/13/24: Turns out that's not true! See note at the bottom for more info.] —is a solid material that can heat to well above the boiling point of water and can store several times the amount of energy of a water tank. While sand doesn’t store electricity, it stores energy in the form of heat. To mine the heat, cool air blows through pipes, heating up as it passes through the unit. It can then be used to convert water into steam or heat water in an air-to-water heat exchanger. The heat can also be converted back to electricity, albeit with electricity losses, through the use of a turbine.

In Pornainen, Paajanen believes that—just by switching to a sand battery—the town can achieve a nearly 70 percent reduction in emissions from the district heating network and keep about 160 tons of carbon dioxide out of the atmosphere annually. In addition to eliminating the usage of oil, they expect to decrease woodchip combustion by about 60 percent.

The sand battery will arrive ready for use, about 42 feet tall and 49 feet wide. The new project’s thermal storage medium is largely comprised of soapstone, a byproduct of Tulikivi’s production of heat-retaining fireplaces. It should take about 13 months to get the new project online, but once it’s up and running, the Pornainen battery will provide thermal energy storage capacity capable of meeting almost one month of summer heat demand and one week of winter heat demand without recharging.

“We want to enable the growth of renewable energy,” Paajanen said. “The sand battery is designed to participate in all Fingrid’s reserve and balancing power markets. It helps to keep the electricity grid balanced as the share of wind and solar energy in the grid increases.”"

-via Popular Mechanics, March 13, 2024

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Note: I've been keeping an eye on sand batteries for a while, and this is really exciting to see. We need alternatives to lithium batteries ASAP, due to the grave human rights abuses and environmental damage caused by lithium mining, and sand batteries look like a really good solution for grid-scale energy storage.

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Note 6/13/24: Unfortunately, turns out there are substantial issues with sand batteries as well, due to sand scarcity. More details from a lovely asker here, sources on sand scarcity being a thing at the links: x, x, x, x, x

[myokk]

💘

[screensandtangledwires]

my beloved , 4-channel tektronix TDS2014C digital storage oscilloscope

[firewolf111]

My phone is lagging so hard and most of my storage has been used. Sadly, I'm an app and tab hoarder.

Please motivate me. Will delete one unused app or search tab for every 2 notes. I can't convince myself to do it, so please peer pressure me.

(Obviously, it has limits since I'm not gonna delete important apps) Go ahead and spam. I need to do it, but I can't

Edit: lowered it from 5 notes to 2 because I need to do this. Just changing that makes me want to cry. This sucks.