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EHAM QTH QRZ ARRL HRO ICOM KENWOOD YAESU ELBO ROOM COMMENTS THURSDAY EDITION: Another 2-5 inches this weekend, this global warming has to be dealt with, it's killing me here....Remember the Nash automobile?....Good discussion on EV vehicles this smornng on 3940, I still do not see any reason to buy one. My F250 gets 12 mpg and I only drive 5000 miles a year, my xyl's Volv hets 27 mpg and it is only droven by me about 2000 miles a year. I bought it new in 2019 and it has 20k on it...I have no payments on either vehicle, change the oil and drive. My ham friend leased a new VW electric car an hates it. In this frigid weather and VW locking down charging to just 80 percent, he can go 150 miles with headlights and heat on. It cost him $1500 to put a charger in the driveway....how the hell is this saving the world or your pocketbook? If you want to drive to Florida you are screwed....The EV chargers in the Stop and Shop lot are 110 volt chargers, you would have to wait all day to charge.
WEDNESDAY EDITION: I am glad HamClock will be kept going, it is a nice source for ham ops.... open-hamclock-backend Aims to Keep HamClock Ticking
A group of ham radio operators have stepped up to keep HamClock operating beyond it’s scheduled sunset in June. An open source replacement for the backend processes required to keep the popular HamClock project alive is well under way. Developed by Brian (KO4AQF) and Austin (KN4LNB), open-hamclock-backend is designed to be a drop-in replacement for the backend server that populates HamClock with its signature set of 40+ data points and visualizations. From Brian (KO4AQF): HamClock relies on an internet backend to provide live space-weather, propagation, DX, and news data. With the passing of its original developer, that backend is no longer being maintained, which means many HamClocks will gradually lose live functionality even though the devices themselves still work. An open-source replacement backend is now being developed that recreates the same data feeds HamClock expects, using publicly available sources such as NOAA, space-weather services, PSK Reporter, and DX information sites. From the HamClock’s point of view, nothing changes — it connects to the same paths and receives the same data formats, without any firmware modification. We are very close to replicating nearly every possible data source and making slight improvements along the way. The system is free, open-source, and designed to run locally on a small Linux system, allowing individual hams or clubs to keep existing HamClocks fully operational. The goal is preservation, not reinvention — keeping HamClock working exactly as intended for years to come. Currently, open-hamclock-backend is designed to be self-hosted, requiring any user wishing to extend HamClock’s usefulness beyond June to run the software themselves. However, options are being considered for a centralized version to be stood up for all HamClock users to take advantage of. Source: open-hamclock-backend Hamvention 2026 Theme and Logo AnnouncedHamvention has released the theme and logo for the 2026 Dayton Hamvention show that will take place May 15-17. This year’s theme is “Radio Adventure” referencing exploration of the many avenues ham radio offers.
Hamvention will take place at the Greene County Fair and Expo Center in Xenia, Ohio. Source: Hamvention TUESDAY EDITION: It was nice to hear Arthur- K1PGH from Cape Cod on 3928 yesterday. Arthur goes back to licensed in 1957 and has done it all. Commercial fishing, started an Ice Cream Shop on the Cape, an going excavation company, and even restores cars.....a wealth of knowledge and one hell of a fine man....
Lenore Kingston was an actress, known for The Twilight Zone (1959), The Beverly Hillbillies, General Hospital and an accomplished Ham Radio Operator W6NAZ. ARRL to announce winner of Icom® Dream Station at HamCation®ARRL The National Association for Amateur Radio® will announce the winner of the ARRL Sweepstakes Icom® Dream Station at Orlando HamCation®, coming to the Central Florida Fairgrounds February 13 – 15, 2026. Hosted by the Orlando Amateur Radio Club and serving as the ARRL Southeastern Division Convention, HamCation features exhibits, technical and operating forums, a large flea market and tailgate area, and opportunities to meet ARRL officials and program representatives. Attendees can learn about initiatives, including the ARRL Year of the Club and the America250 Worked All States Award. A Saturday night banquet will include the presentation of HamCation Awards and a keynote address from ARRL Senior Director of Marketing and Innovation Bob Inderbitzen, NQ1R. Details and updates are available at hamcation.com. MONDAY EDITION: My wife has not really been out of the house for over a month yet somehow caught Covid, she went over to Urgent Care for x-ray and tests to find the news. We both have it and I brought it in to the house from wherever....I wondered why I was weak and felt like a bag of shit, it didn't feel like a cold really, the coughing was brutal....anyways we are all on the mend or not, life is a crapshoot, ask the fisherman from Gloucester. Taking a Look at Variable Vacuum Capacitors
Variable capacitors may be useful, but the air gap that provides their capacitance is their greatest weakness. Rather than deal with the poor dielectric properties of air, some high-end variable capacitors replace it with a vacuum, which presents some obvious mechanical difficulties, but does give the resulting capacitor a remarkable quality factor, high-voltage performance, and higher capacitance for plate area than their air-gapped brethren. [Shahriar] of [The Signal Path] managed to acquire a pair of these and took a detailed look at their construction and performance in a recent video. The vacuum capacitors don’t use quite the same parallel plate design as other variable capacitors. They instead make the plates out of interlaced concentric metal rings mounted in a vacuum tube. Both sets of rings are connected to terminals, one fixed and one capable of being pulled in or out on a threaded rod surrounded by an accordion-pleated copper seal. A nut on the outside pulls the rod out, and the interior vacuum pulls it in toward the other set of plates. Unfortunately, since the mobile terminal needs to be mechanically connected to some adjustment mechanism (such as someone’s hand), it can’t really be at a floating voltage. The mobile terminal needs to be grounded for safety. Alternatively, for automatic control, one of the capacitors had a chassis with a motor, gearing, and a positional encoder. [Shahriar] also tested the capacitors with an impedance analyzer and lock-in amplifier. They had fairly low capacitance (for the one he tested, 36 pF at maximum and 16 pF at minimum), but the dissipation factor was so low and the DC impedance so high that they couldn’t be meaningfully measured. He also tested one at 5000 volts and found almost no dissipation. We recently saw another video going over a lesser-known feature of normal air-gap variable capacitors and another new non-standard variable capacitor design. On the opposite end of the fanciness spectrum might be this variable capacitor built out of aluminium cans. Explore the Stratosphere With a DIY Pico balloonA tiny ham-radio transmitter lets you track a balloon globally..The local local club launched one last fall and it made it all the way around the world until it reached Hawaii and it suddenly stopped working. Probably shot down by the US! jon-k1tp
There’s an interesting development in amateur ballooning: using so-called superpressure balloons, which float high in the atmosphere indefinitely rather than simply going up and up and then popping like a normal weather balloon. Superpressure balloons can last for months and travel long distances, potentially circumnavigating the globe, all the while reporting their position. You might imagine that an undertaking like this would be immensely difficult and cost thousands of dollars. In fact, you can build and launch such a balloon for about the cost of a fancy dinner out. You just have to think small! That’s why amateur balloonists call them pico balloons. The payload of a pico balloon is so light (between 12 to 30 grams) that you can use a large Mylar party balloon filled with helium to lift it. They’re also inexpensive; that’s important because you won’t get your payload back. And because such diminutive payloads don’t pose a danger to aircraft, they aren’t subject to the many rules and restrictions on free-floating balloons that carry more mass. The essential advances that made pico ballooning possible were figuring out how to track a balloon no matter where in the world it might be and how to power such tiny payloads. A lot of folks worked on these challenges and came up with good solutions that aren’t hard or expensive to reproduce. What is WSPR?Amazingly, the global tracking of the balloon’s telemetry is done without satellites. Instead, pico balloonists take advantage of an amateur-radio network called WSPR (Weak Signal Propagation Reporter), a protocol developed by a rather famous ham-radio enthusiast—Joseph Hooton Taylor Jr., one of the two scientists awarded the 1993 Nobel Prize in Physics for discovering binary pulsars. SUNDAY EDITION: It's snowing, already an inch from the ocean effect at 7am, the storm arrives later and lasts all day. We used to never get snow, what the hell happened around here? Global Warming my ass....
22-year-old
Jada Samitt
was one of
the people
on board the
Gloucester
boat that
sank Friday.
Family tells
me she moved
from
Virginia to
MA to study
environmental
biology.
Being on the
crew was her
first big
job at sea
and was "her
dream"
The ARRL Solar UpdateSolar
activity
continued at low
levels this
week. Low level
C-class Register Now for HamSCI 2026, Hosted by ARRLARRL The National Association for Amateur Radio® will host the 9th annual Ham Radio Science Citizen Investigation (HamSCI) Workshop on March 14 – 15, 2026, with primary activities held at Central Connecticut State University (CCSU) in New Britain, Connecticut, and additional events at ARRL Headquarters in Newington. The international workshop brings together radio amateurs, scientists, educators, and students to explore how amateur radio serves as a practical tool for scientific research and citizen science.Organized by the HamSCI community, the 2026 workshop carries the theme “Discovering Science Through Ham Radio.” Presentations and discussions will highlight real-world research enabled by amateur radio, including ionospheric and space weather studies, meteor scatter propagation, radio-based sensing technologies, and the growing use of Personal Space Weather Stations. The program emphasizes how these efforts not only advance scientific understanding, but also directly inform and improve amateur radio operating and technology. American Radio Relay League | Ham Radio Association and Resources – Read More SATURDAY EDITION: Sadly, Gloucester lost another trawler yesterday 20 miles offshore. The Lily Jean, its captain, Gus Sanfilippo, and his crew were featured in a 2012 episode of the History Channel show “Nor’Easter Men.” Sanfilippo is described as a fifth-generation commercial fisherman, fishing out of Gloucester, Massachusetts, in the Georges Bank. The crew is shown working in dangerous weather conditions for hours on end, spending as many as 10 days at sea on one trip fishing for haddock, lobster and flounder.
**
FRIDAY EDITION: It's been a winter here and I am for the first time feeling my age, I don't do well with the cold anymore. Yesterday I went out to uncover my wife's car and broke a windshield wiper stuck to the windshield. I then hopped in the truck to touch up the driveway and ran the plow up hard against a boulder I forgot about that was covered in the snow. I ripped off the weld and bent a piece of 1/2 plate steel from the plow mount that holds the plow in position. I went over to the shop and we heated the plate stock cherry red with the torch and wrestled it back in place with a sledge hammer and then stick welded it back to somewhat normal. 1 1/2 hours, most of the time outside, came home and went to bed....this getting old and stupid is tough to swallow... ARDC Priority Areas of Funding Offer Opportunities for HamsARDC continues to accept grant applications from organizations aiming to advance the hobby of amateur radio and beyond. The next application deadline is just around the corner on February 1st, but three additional rounds of applications will be accepted later this year on April 1st, July 1st, and September 1st.
With the recent introduction of Priority Areas for Funding, ARDC is especially interested in projects that align with the following areas:
ARDC welcomes proposals across the full range of amateur radio and digital communications, but projects that align with these areas remain a priority. Learn more about applying for grants at ARDC. THURSDAY EDITION: I have been sick as a dog with non stop coughing, fever, and cold and feeling like crap..I feel somewhat better today. I plowed the driveway after the storm but I never got to snowblowing, I dread the thought today.We got the jackpot, 27 inches and drifts over 3 feet around the house. ...On another note, I am very glad I switched the link of the 440 Gloucester fusion repeater over to the UFB New England Network, lots of activity...if you call out someone actually answers you!....Here is our tax dollar at work, sending a shitter to the moon... Emergency officials use ham radio operators during winter storms (West Virginia)MEIGS COUNTY, Ohio (WSAZ) – With winter weather slamming much of the region, emergency officials are activating a different kind of backup — one that doesn’t rely on cell towers or Wi-Fi. It’s called ARES — Amateur Radio Emergency Service — and it’s full of ham radio operators trained to step in when traditional communication goes down. Joe Barnhart with the Meigs County Auxiliary Communications said it takes a team to be prepared. “It was a busy weekend. We started Friday setting up equipment. On Saturday, we stood up our auxiliary group. Meigs EMA asked us to have volunteers ready to deploy to warming shelter in case service or internet was down,” Barnhart said. A team of operators checked in to the network during the weekend. They’re acting as a human link — taking calls, confirming locations, and pushing critical information up the chain of command. “We set up an emergency communication with various services, whether its amateur radio or GMRS radio, which is the General Mobile Radio Service and that allows people with even radio service, to hear and commute with the general networks, that gives real world information for weather conditions, snow levels, the Meigs EMS wants us to send out,” Barnhart said. Read more – WSAZ: https://bit.ly/4qbMM2h
TUESDAY EDITION: Two feet of snow and Dave- N1EDU got to the store and opened up for business. My mailman never showed, remeber when theycame thry rain, sleet, and snow? Funny, our model organization for Emergency Services shuts down in a snow storm: Winter Storm Closes ARRL Headquarters on Monday, January 26ARRL Headquarters and the Maxim Memorial Station, W1AW, will be closed on Monday, January 26, 2026, due to heavy snowfall across the Northeast. MONDAY EDITION: It was a great game, mainly because we won. The weather being a huge factor for both sides in the second half but despite it all, we are goingto the Super Bowl...I was gifted 24 inches of snow, some drifts of 3 feer due to the howling winds last night.
Backyard picture of the deer feeding at Mike's-N1XW The Setun Was a Ternary Computer from the USSR in 1958
[Codeolences] tells us about the FORBIDDEN Soviet Computer That Defied Binary Logic. The Setun, the world’s first ternary computer, was developed at Moscow State University in 1958. Its troubled and short-lived history is covered in the video. The machine itself uses “trits” (ternary digits) instead of “bits” (binary digits). When your digits have three discrete values there are a multiplicity of ways of assigning meaning to each state, and the Setun uses a system known as balanced ternary where each digit can be either -1, 0, or 1 and otherwise uses a place-value system in the normal way. An interesting factoid that comes up in the video is that base-3 (also known as radix-3) is the maximally efficient way to represent numbers because three is the closest integer to the natural growth constant, the base of the natural logarithm, e, which is approximately 2.718 ≈ 3. If you’re interested to know more about ternary computing check out There Are 10 Kinds Of Computers In The World and Building The First Ternary Microprocessor. BLIZZARD OF 26 WEEKEND: Sunday 7am- 7 degrees, bitter, and murky out, looks a lot like a snow storm might be happening today...I wonder why the Patriots did not arrive a lot earlier than yesterday to acclimate to the altitude change, I hope it was not a mistake on there part... Saturday: 3 degrees before the wind chill factor at 7am...More importantly, the NFL playoff games would should shift the storm mania over to football madness. All stocked with chicken wings, chips and dip, homemade beef stew and chicken soup, fresh Italian bread...we are ready to rock and roll...let it snow. let it snow, let it snow... Now Shipping: the 2026 edition of The ARRL Repeater Directory® powered by RepeaterBookARRL is excited to announce that the 2026 edition of The ARRL Repeater Directory® is once again powered by RepeaterBook, amateur radio’s worldwide repeater database. New for 2026, The Repeater Directory features a City Quick Find Index, making it faster and easier than ever to locate nearby repeaters. “Each year The ARRL Repeater Directory continues to set the standard for trusted repeater information, and we’re proud to see RepeaterBook data play an ongoing role in that effort,” said Garrett Dow, KD6KPC, of RepeaterBook. “Our continued partnership helps ensure the directory reflects the most current, carefully curated repeater listings available. As new features and tools are added, the 2026 edition further strengthens its value for everyday operators, travelers, and emergency communications teams who depend on accurate information when it matters most.” FRIDAY EDITION: Let the madness begin, the talking weather heads on TV have predicted a huge storm. Yea, it's New England! It comes on Sunday and is gone Monday. The roads will be completely cleared by Tuesday morning but the mayhem at Market Basket is almost too funny, people running around grabbing shit off the shelves they will never use- why all the bread, milk, and toliet paper???? Print Your Own Standardized Wire Spool Storage
Hardware hackers tend to have loads of hookup wire, and that led [firstgizmo] to design a 3D printable wire and cable spool storage system. As a bonus, it’s Gridfinity-compatible! There are a lot of little design touches we love. For example, we like the little notch into which the wire ends are held, which provides a way to secure the loose ends without any moving parts. Also, while at first glance these holders look like something that goes together with a few screws, they actually require no additional hardware and can be assembled entirely with printed parts. But should one wish to do so, [firstgizmo] has an alternate design that goes together with some M3 bolts instead. Want to adjust something? The STEP files are included, which we always love to see because it makes modifications to the models so much more accessible. One thing that hasn’t changed over the years is that making engineering-type adjustments to STL files is awful, at best. If there is one gotcha, it is that one must remove wire from their old spools and re-wind onto the new to use this system. However, [firstgizmo] tries to make that as easy as possible by providing two tools to make re-spooling easier: one for hand-cranking, and one for using a hand drill to do the work for you. It’s a very thoughtful design, and as mentioned, can also be used with the Gridfinity system, which seems to open organizational floodgates in most people’s minds. Most of us are pinched for storage space, and small improvements in space-saving really, really add up. SpottedHam.com Launches Custom POTA and Keyword Email AlertsSpottedHam.com Launches Real-Time Custom Keyword Alerts for Portable OperatorsA new web-based tool for the amateur radio community, SpottedHam.com, has launched to provide hams with a more granular way to monitor the bands. Unlike traditional clusters, SpottedHam allows users to create custom watchlists for specific callsigns, POTA (Parks on the Air) references, or specific bands and modes. The system monitors live spotting data and sends an immediate email notification to the user the moment a match is found. This is particularly useful for operators chasing specific park references or monitoring the activity of friends and local club members. Developer Robert Campbell/KM6HBH designed the tool to be mobile-first, ensuring that activators in the field and operators in the shack have a clean, clutter-free interface. The service is currently free to use and supports global spotting data, including UK and European POTA references. Interested operators can find the live spotting table, an easy way to spot themselves, and sign up for alerts at: https://www.spottedham.com
THURSDAY EDITION: I cycled the generators yesterday and I plan to start up the big Ariens snow blower sometime today. My plow is on and ready to go, plenty of Biobricks for the Vermont Casting stove....I just need to rush over to the market and buy a months supply of milk, bread, eggs, and toilet paper to get thru this major storm...lol of course...I have battery power for the VHF-UHF-HF rigs in a pinch The CAARA club in Gloucester will be open for Winter Field Day on Saturday at 11AM and on with pizza served sometime. It is more of a social event for us, we are not big in going outside and freezing our ass off to play radio. Been there and done that, in a real emergency we would work out of the club with the generator running and ample heat..... SpottedHam.com Launches Real-Time Custom Keyword Alerts for Portable OperatorsA new web-based tool for the amateur radio community, SpottedHam.com, has launched to provide hams with a more granular way to monitor the bands. Unlike traditional clusters, SpottedHam allows users to create custom watchlists for specific callsigns, POTA (Parks on the Air) references, or specific bands and modes. The system monitors live spotting data and sends an immediate email notification to the user the moment a match is found. This is particularly useful for operators chasing specific park references or monitoring the activity of friends and local club members. Developer Robert Campbell/KM6HBH designed the tool to be mobile-first, ensuring that activators in the field and operators in the shack have a clean, clutter-free interface. The service is currently free to use and supports global spotting data, including UK and European POTA references. Interested operators can find the live spotting table, an easy way to spot themselves, and sign up for alerts at: https://www.spottedham.com WEDNESDAY EDITION: Is it just me, the cold weather just doesn't agree with me anymore. I see no joy when it is 10 degrees on here Cape Ann... New Comedy Podcast Tackles Ham Radio’s “Gatekeeping Problem” With Humor and EducationGuy and Gus launch innovative series as survey data reveals 73% of new operators feel intimidated by online ham radio communities Orlando, FL – January 20, 2025 – As amateur radio experiences a post-pandemic surge in new licensees, a troubling trend has emerged: online communities have become battlegrounds where “real radio” debates and equipment tribalism drive newcomers away from a hobby designed around experimentation and connection. Ham Radio Gizmos is tackling this challenge head-on with an innovative solution: a comedy podcast that makes learning fun again. The show centers
on twin brothers Guy
and Gus Wyre, whose
constant
disagreements mirror
the hobby’s most
heated debates. Guy
champions modern
software-defined
radios, digital
modes, and computer
integration. Gus
lives for vintage
tube equipment,
heavy iron, and
radios that glow
before they
transmit. Their
sibling rivalry
becomes the vehicle
for education –
proving both
approaches have
merit while
reminding listeners
that ham radio is
big enough for
everyone. What Makes This
Different Each episode features:
The podcast’s philosophy is simple: Ham radio should be fun. Learning should be enjoyable. And laughing at ourselves is part of the process. Bridging the
Generation Gap “We’re not saying one approach is better,” Love explains. “We’re saying the arguments are entertaining, both sides have wisdom, and the hobby thrives when we stop gatekeeping and start experimenting together.” Proven
Educational Approach
Early listener feedback validates the approach: audiences report higher engagement and better retention of technical concepts compared to traditional lecture formats – proof that entertainment and education can coexist. About Ham Radio Gizmos Ham Radio Gizmos
is a multi-platform
educational
initiative dedicated
to making amateur
radio accessible,
enjoyable, and
welcoming. Through
YouTube tutorials,
podcast episodes,
and community
engagement, the
project serves both
new and experienced
operators with
content that
respects the hobby’s
traditions while
embracing
innovation. Disclaimer Media Contact Source: Ham Radio Gizmos What Isaac Roberts Saw Without a Space TelescopeSpace telescopes are all the rage, and rightfully so. The images they take are spectacular, and they’ve greatly increased what we know about the universe. Surely, any picture taken of, say, the Andromeda galaxy before space telescopes would be little more than a smudge compared to modern photos, right? Maybe not. One of the most famous pictures of our galactic neighbor was taken in — no kidding — 1888. The astronomer/photographer was Isaac Roberts, a Welsh engineer with a keen interest in astrophotography. Around 1878, he began using a 180 mm refracting telescope for observations, and in 1883, he began taking photographs. He was so pleased with the results that he ordered a reflecting telescope with a 510 mm first-surface mirror and built an observatory around it in 1885. Photography and optics back then weren’t what they are now, so adding more mirrors to the setup made it more challenging to take pictures. Roberts instead mounted the photographic plates directly at the prime focus of the mirror. Andromeda
This image, captured with the NASA/ESA Hubble Space Telescope, is the largest and sharpest image ever taken of the Andromeda galaxy — otherwise known as M31. This is a cropped version of the full image and has 1.5 billion pixels. You would need more than 600 HD television screens to display the whole image. It is the biggest Hubble image ever released and shows over 100 million stars and thousands of star clusters embedded in a section of the galaxy’s pancake-shaped disc stretching across over 40 000 light-years. This image is too large to be easily displayed at full resolution Because it took hours to capture good images, he developed techniques to keep the camera moving in sync with the telescope to track objects in the night sky. On December 29th, 1888 he used his 510 mm scope to take a long exposure of Andromeda (or M31, if you prefer). His photos showed the galaxy had a spiral structure, which was news in 1888. Of course, it’s not as good as the Hubble’s shots. In all fairness, though, the Hubble’s is hard to appreciate without the interactive zoom tool. And 100 years of technological progress separate the two. Roberts also invented a machine that could engrave stellar positions on copper plates. The Science Museum in London has the telescope in its collection. Your Turn Roberts did a great job with very modest equipment. These days, at least half of astrophotography is in post-processing, which you can learn. Want time on a big telescope? Consider taking an online class. You might not match the James Webb or the Hubble, but neither did Roberts, yet we still look at his plates with admiration. TUESDAY EDITION: 19 Degrees plus a wind-chill factor, not a good day for antenna work....The addition of our W1GLO repeater to the UFB fusion network is looking good. Thanks Bart for letting us in!... Net aurora effect on late afternoon 3828 get together yesterday...
History
meets the
Maine
wilderness.
On Elephant
Mountain,
the B-52
crash site
memorial
honors the
crew who
lost their
lives in
1963.
Take a short
hike from
Moosehead
Lake to
explore the
scattered
wreckage and
soak in
breathtaking
views.
AmateurLogic 213: RF Burns
In
another
Tales From
The
Transmitter,
George
presents RF
Burns. Emile
is getting
back on the
air in the
new shack.
Mike asks
"Hey What's
That, WISP"?
This
episode of
AmateurLogic
(0:01)
covers
various
topics
related to
amateur
radio and
technology.
The hosts,
George,
Tommy,
Emile, and
Mike,
discuss
personal
updates and
upcoming
events,
including
the Capital
City Hamfest
(5:51) and
Winter Field
Day (6:13).
Key
segments
include:
VIDEO LINK Fire extinguisher ‘box’ allows safe transport of Li-ion batteriesNAGOYA--In the wake of a recent spate of fires caused by lithium-ion batteries, a research team from Nagoya University here and other institutions has developed a portable device for their safe transport. The researchers have devised a box-shaped container that creates a “state of suffocation” that can easily and safely extinguish fires if they occur. The device's shape can be readily changed, making it possible to store, collect and transport such batteries without the risk of fires. Norikazu Ishigaki, an assistant professor at Nagoya University Graduate School of Engineering, collaborated with Goto Inc., based in Tokoname, Aichi Prefecture, a company that designs and manufactures powder molding presses. They focused on “suffocation extinguishing,” which involves generating nonflammable gas inside a container to cover the surface of burning materials and choke off the oxygen supply. The device uses a solid extinguishing agent made from ammonium phosphate salts, which are commonly used in fire extinguishers. Even if the temperature of a lithium-ion battery placed inside the container rises, the solid extinguishing agent blocks heat from escaping. Through thermal decomposition, a chemical reaction occurs that generates nonflammable gas, filling the container and creating a pseudo-sealed space. When the lithium-ion battery ignites and flames appear, the solid extinguishing agent reacts further, increasing the amount of nonflammable gas and reducing the oxygen level inside, thereby achieving initial fire suppression and preventing it from spreading. UNDER VERIFICATION PROCESS The material used for the solid extinguishing agent can be melted into a liquid for processing, allowing the device’s shape to be freely customized. The research team, with cooperation from the Kobe city government, verified the performance of the device by heating and exploding lithium-ion batteries. In Gamagori, Aichi Prefecture, initial models of the device have been installed in trash bins for experiments to determine the effective duration of the containment. Mass production technology and product evaluation have already been completed, and preparations for commercializing the device are under way. Lithium-ion batteries are used in mobile devices and can overheat due to short circuits caused by impacts, or ignite from heat generated during charging or exposure to direct sunlight. Although disposal methods for used lithium-ion batteries are regulated by municipalities, they are sometimes thrown out with regular garbage, leading to accidental fires in garbage trucks and collection sites. AIMING FOR WIDESPREAD ADOPTION According to the Environment Ministry, fire accidents involving products equipped with lithium-ion batteries such as cellphones and power banks jumped from 293 cases in 2020 to 492 in 2024, a 1.7-fold increase. Power banks accounted for the largest share, with 123 instances. “With this fire-extinguishing device, we aim to introduce a recycling system by ensuring safe storage, collection and transportation of discarded lithium-ion batteries,” Ishigaki said. The team plans to utilize the flexibility of the device’s shape to provide low-cost fire-extinguishing equipment for transportation systems such as airplanes and for commercial facilities including hotels, promoting widespread adoption. Sales and inquiries will be handled by Nagoya University-based venture company Pro Creative, which is based in Kobe's Suma Ward.
HAMS YOU MIGHT KNOW- ALIVE AND SK K1TP-
Jon....Editor of As The World
Turns....
SILENT KEYS Silet Key
KA1BXB-Don...Regular
on 3900 mornings....just
don't
mention
politics
to
him,
please!
wednesday
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