#microwave — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #microwave, aggregated by home.social.
-
"Are you a souffle blaster???"
Informative video about microwave power levels that has left me wanting to throw out "Are you a souffle blaster???" in random conversations. 😂
-
I found a lovely location for #hamradio #UHF and #SHF #microwave beacons.
The current #meshcore repeater up there is too boring.I like the #Q65 style of british repeaters ( #gb3mhz #23cm occasionally comes in range for me ).
rfzero.net might only have pcb for baseband but no info on frequency multiplications and PA.
w1ghz website is informative.
A standard Pi Zero 2 + UHF HAT might be consume too much for solar + battery as I do not want to ask/pay for energy up there.
Hints welcome!
-
Dear #microwave manufacturers of the world,
Please improve the central spinning widget/plate interface. You have had several decades to make this happen. The world needs this now.
Thankyou for your attention to this matter.
-
Breathing in LPG will do a lot of bad things to you, including killing you, if a spark didn't get to you first and exploded the whole kitchen.
My assumption is that you have a regulator, proper seals, a flexible hose which is not dried out or copper piping, in short a well functioning setup.
I shall ammend this toot after I've read the article you've linked
-
Read about more about ftalates phalates here
-
Microwave ovens are not good for our health in general. Use an open stove driven with LPG gas, e.g
If you have to use a microwave better use Ceramics instead of plastics. Ceramics can withstand extremely high temperatures and don't leach dangerous chemicals into your food
Plastics leach many chemicals into your food. Ftalates are one example.
-
anyone on here have experience designing and manufacturing X thru Ka band #rf #microwave filters in waveguide or other cavity structures?
-
My other blog post for the Scarab Trust: https://www.scarabtrust.org.uk/post/is-microwave-safe-plastic-really-safe
#environment #microplastics #breakfreefromplastic #microwave #readymeals #health
-
Anything that takes longer than five minutes in the #microwave feels wrong.
-
Now matter how many times I press this button on my microwave, I can not get scrambled eggs to come out.
-
"You must have something planned for the weekend?? Kids and their mom away, eh??"
Yes. I planned for that Bami Goreng to unfreeze in the microwave for 13min at 600w. Next part of the plan: watching The Bystanders and burn my legs with a hot glass bowl. 🫡
#microwave #600wattlife #lifegoals -
This tower on the roof of what used to be the New England Telephone Building in New Hampshire used to have large microwave horns on top, see https://en.wikipedia.org/wiki/TD-2
#photo #photography #buildings #architecture #tower #microwave #telecommunications #microwave #manchester #manchesternh #newhampshire #nh
-
Waldorf WAVE Synthesizer - no talking
Video upload by #AnthonyRother https://youtu.be/QF4sTliWONg
"The #Waldorf WAVE is a special #Synthesizer. It dates back to 1993 and, due to its exclusivity and price at the time, only a small number were built." -
#TIL In the 1950s, #scientists cooled hamsters/rats to near-freezing and used #microwave diathermy to revive them. Not quite “frozen mice in a microwave,” but still a wonderfully weird chapter in cryobiology history. 🐹❄️📡
https://www.nature.com/articles/1731136a0
A research echoed recently by a team from #germany #fau that succeeded in preserving #brain tissue through extreme deep #freezing
-
It's time to start pre-blogging and pod-cording, be ready when the wave breaks to get the frenzied nonsensical word out about 7G wireless mobile and Wifi 8, light the fires early to be a paranoi-fluencer and fear-leader.
#Conspiracy #blog #podcast #wifi #microwave #mmWave #radio -
“Great inventions are never, and great discoveries are seldom, the work of any one mind. Every great invention is really an aggregation of minor inventions, or the final step of a progression. . It is not usually a creation, but a growth, as truly so as is the growth of the trees in the forest.”*…
A machine called the New Castle, built by Richard Trevithick in 1803, was the first locomotive to do actual work. (source)Our old friend (and here and here) Brian Potter thinks deeply about scientific and technological advance. Here, he ponders the pace of progress…
In her book on the history of the laser, historian Joan Bromberg notes that the technological and scientific predecessors of the maser (which itself preceded the laser – two critical technologies whose developmental histories I sketched in this piece two months ago) were in place for decades before physicist Charles Townes had the insight to combine them…
… This sort of decades-long wait between when a technology first becomes possible, and when it actually appears, seems common, or at least seems like it might be common. I’ve previously written about why it took so long for wind power to be widely deployed after it became technologically possible, and people often idly speculate whether inventors in the Roman Empire could have built a steam engine, or why we waited so long to put wheels on luggage.
Knowing how long this gap between when an invention becomes possible, and when it actually appears, is useful, because it tells us something about the nature of technology and technological progress. What factors govern whether some new technology appears? How much does mere technical possibility matter, and how much do things like cross-pollination of knowledge, economic feasibility, and political factors contribute? Knowing more about how long it takes for an invention to appear once it becomes technically possible can help us answer these sorts of questions.
I wanted a better sense of how long it takes for some technology to appear once its necessary predecessors are in place. So I used AI to try and find out…
[Potter explains his method, then unpacks his results…]
We can clearly see a few trends on this graph. One is that for most inventions, the gap between when it could have been invented and when it was actually invented is not particularly large. Of the 166 inventions Claude estimated a date for, 107 of them (64%) had an “earliest plausible” date 50 years or less from the actual date, and 150 of them (90%) had an “earliest straightforward” date 50 years or less from the actual date. For more than half the inventions, the average earliest straightforward date of invention was 10 years or less from the actual date.
Conversely, there were a relatively small number of inventions where the gap between “could have been invented” and “was invented” was very large. 30 inventions (18%) had an average gap of more than 100 years between “earliest plausible” and actually invented, and eight inventions had a gap of more than 1000 years. You can see this clearly on a histogram, which shows a large bump of small time gaps, and a long tail of fewer, larger gaps.
The inventions with the longest period between “could have been invented” and “was invented” are below.
There’re a few interesting trends observable here. Many of the longest-delayed inventions — the hypodermic needle, general anaesthetic, stethoscope — are medical inventions. (You could argue the surgical mask could be in this category as well). For the hypodermic needle, this probably needed to wait until the existence of some substance that needed to be injected (such as morphine, first synthesized in 1804), but for other medical inventions this possibly also reflects folks’ reluctance to do inventive-tinkering in a medical context. For general anaesthetic, for instance, the trial and error of getting the dose right was incredibly dangerous, and the inventor Hanaoka Seishu “crippled his mother and blinded his wife perfecting the dose.”
Several of the longest-awaited inventions are ones where the version in the list is an early, impractical version of the one that actually solved a problem. So the “dandy horse” — a two-wheeled, wooden vehicle that was a predecessor of the bicycle — could have been built in antiquity, but the dandy horse wasn’t particularly practical as a means of transportation, and actually useful bicycles had to wait for the improved manufacturing technology of the later 19th century. Likewise, the version of the ballpoint pen that Claude thinks could have been invented much earlier is John Loud’s 1888 version, but Loud’s pen worked poorly and wasn’t successful. Actually useful ballpoint pens are surprisingly difficult to manufacture (China famously couldn’t manufacture them until very recently), and credit for the “useful ballpoint pen” is usually given to Lazlo Biro in 1938. (Claude correctly notes that “useful” versions of both these inventions would need to wait until much later.) Judson’s early zipper and de Martinsville’s early sound-recording device are also examples of early, not-particularly-useful inventions.
Other inventions on this list seem like they might be a case of the surrounding social or technological conditions needing to be right for the invention to appear. So Otis’ elevator safety brake needed to wait until elevators were in higher demand, which probably didn’t occur until steam engines or some other similar power source came along (though maybe you could have water-driven elevators much earlier). Barbed wire perhaps needed to wait until enclosing very large areas of land for grazing became something people needed to do.
And some inventions seem like they might have been genuinely useful had someone thought of them earlier, and simply nobody did. Blanchard’s pattern-tracing lathe, Neilson’s hot blast, and the safety pin all seem like they fall into this category, though perhaps there were good reasons these didn’t appear earlier.
Going back to the scatterplot, the other obvious trend on this chart is that the gap between when an invention becomes possible and when it appears has narrowed over time. If we graph the average and median gaps for inventions by 20-year time periods, we can see that they have fallen over time.
For the 60 post-1900 inventions, every one has a “straightforward” invention date of 50 years or less than the actual date, and 75% of them have a straightforward date of 10 years or less before the actual date. Of the 30 inventions with a gap of more than 100 years between when they could have been invented and when they actually appeared, 29 of them were invented before 1900. So the process for creating new inventions seems to be getting more and more efficient — opportunities are getting noticed and exploited sooner and sooner, up through 1970 at least (which is when the list of major inventions extends to).
We can also look at how wait times vary by type of technology. The chart below shows average wait times by different categories, for both inventions overall and for just post-1900 inventions. We can see that medical inventions have the longest wait, while electronic inventions have the shortest wait…
… We can also look at what types of factors tend to be bottlenecks. For some inventions, the bottleneck is primarily scientific: the limiting factor for the transistor is the band theory of quantum mechanics, and the limiting factor for the radio was Hertz’s demonstration of electromagnetic waves. But for other inventions, it’s primarily technological: the turbojet had to wait not for some new physical theory, but until compressor technology and high-temperature steels appeared; likewise the airplane had to wait not for some novel theory of aerodynamics but until a light enough engine appeared. The chart below shows how often “science” or “technology” was the limiting factor for a given invention, for both inventions overall and post-1900 inventions.
In both cases, technology is the bottleneck far more often than science (though of course if you removed enough technological bottlenecks eventually you’d hit a scientific one, and vice versa).
There is of course only so much you can learn from this sort of exercise: at the end of the day, this is based on an AI’s best guess, not a thorough analysis of the various controlling factors by experts. But while I wouldn’t swear to its accuracy, I think the answers are probably mostly pretty good, and enough for us to draw some general (if tentative) conclusions about the nature of technological progress.
My main takeaway is that we mostly don’t wait all that long for new inventions. Since 1800 most inventions have appeared within a few decades of when it was possible to build them, and since 1900 these gaps been even narrower. It also seems likely that medical inventions are more likely to have long wait times than other types of inventions, and that the limiting factor for how early some new technology could appear is most likely to be technological, rather than scientific.
On the (maybe suprisingly) quick– and quickening– pace of progress: “How Long Do We Wait for New Inventions?” from @constructionphysics.skystack.xyz
###
As we analyze advance, we might send inventive birthday greetings to William Webster (W. W.) Hansen; he was born on this date in 1909. A physicist and one of the founders of the technology of microwave electronics, he had a central hand in the development of klystron technology (essential to high frequency amplification, thus central to microwave technology, radar, and UHF television transmission), and linear accelerators (he led the development of SLAC), and along with the Varian brothers and Edward Ginzton, co-founded Varian Associates (in 1948)–one of the first high-tech companies in Silicon Valley.
#BrianPotter #culture #history #innovation #invention #inventions #klystron #linearAccelerator #microwave #Physics #radar #Science #SLAC #Technology #VarianAssociates #WWHansen -
Stupid #microwave gave up. Previous one lasted for over 20 years, this one not even 3. Warranty was of course only 2 years.
#whirlpool -
@ruthpozuelo I forgot about the baking powder (you can use ordinary soda) and increased attention in the microwave. If the blender grinds the rolled oats to the state of flour, then this mixture turns into something like a #cake in the #microwave.
-
Midea Winter Appliances Range Brings Easy, Affordable Comfort Cooking to Australian Homes
Midea’s mission to “bring great innovations to life” continues with …
#dining #cooking #diet #food #Cooking ##comfortfood ##KitchenAppliances ##ricecooker #australiahomes #dishwasher #energyefficient #homeappliances #microwave #Midea #pressurecooker #smartkitchen #wintercooking
https://www.diningandcooking.com/2628316/midea-winter-appliances-range-brings-easy-affordable-comfort-cooking-to-australian-homes/ -
At a store, I saw these #icons on a #microwave . Staff could not explain them. What are they trying to tell us?
-
Woman Cooked Dinner For Her Homestay Student, But The Teen Got Disappointed That It Wasn’t Her Go-To After Practice Meal » TwistedSifter
Freepik/Reddit Cooking for others doesn’t always mean meeting ev…
#dining #cooking #diet #food #Cooking ##student #aita #argument #dinner #microwave #Pasta #picture #practice #reddit #top
https://www.diningandcooking.com/2607198/woman-cooked-dinner-for-her-homestay-student-but-the-teen-got-disappointed-that-it-wasnt-her-go-to-after-practice-meal-twistedsifter/
