buildsjets

What about the eraser? What about the machine that mills the pumice that goes in the eraser? What about the yellow paint? Are you gonna go with cadmium pigment or something that won’t kill children, and if so, what? How to you plan to refine the bauxite ore to make the aluminum ferrule that attaches the eraser to the pencil? Were you aware that they are aluminum, or called ferrules? What about the machine that makes the pierced holes through the ferrule that retains the eraser?

I know a shitload of trivia about both manufacturing and pencils. But I could not possibly recreate all the processes needed to manufacture a pencil.

I learned a lot about pencils from this article. It is also applicable to jet engines.

http://www.rstengineering.com/rst/articles/tsodpencil.pdf

Yuck. We just used .plan and .project files. Finger me for fun!

Given the times, these vehicles need a bumper sticker that says “This is not an IED.”

Jeff Lane has a few of these in the Lane motor museum in Nashville. Just about everything in the museum is in operating condition and he likes to show his collection off on weekend demo days, but I haven’t had a chance to see these run. Great car museum, all oddball cars, nothing normal. They recently finished building an accurate reproduction of the Fuller Dymaxion. https://www.lanemotormuseum.org/collection/cars/item/dymaxio...

And you are proposing that none of the Cesium 137 escaped into the ambient environment during the 19 year exposure period? That is statistically impossible. The source had ha mechanical shutter that allowed it to be directly exposed to the environment for almost 20 years, with no human to maintain it. Corrosion, spalling, and release of radioactive material though freeze-thaw cycles are all ways that bits of the source can become liberated.

Are you also proposing that this was the only experiment that released radionuclides into the environment at BNL? I certainly remember the furor of them getting caught pissing tritium into the groundwater. I am sure there are many, many things they did which were not detected.

https://www.gao.gov/products/rced-98-26

It is well know and well documented that the defense industry has taken a cavalier approach to public nuclear safety from it’s very inception. And make no mistake, BNL exists primarily as a national defense asset.

It turned out that the aliens live in inner space, not outer space.

I suppose that depends on your definition of “now”. BMW has had a 20 year history of fork lower failures on their adventure bikes. Just search “BMW Fork Failure” and you will find a lot of discussion. Here was a Microsoft friend’s wreck in Alaska, which I believe was one of the earliest ones. Front wheel complete separated while she was riding straight and level on a paved road.

https://www.advrider.com/f/threads/crash-in-destruction-bay-...

Unlike all the other guesses here, I actually do have experience with manufacturing specialty aerospace fasteners similar in size, shape, complexity, and precision as these. These are most assuredly being manufactured on a specialty tool called a “Swissing Lathe”, or Swiss CNC machine, because that is the machine you always use to make parts like this. It is a multi-headed turret mill combined with a lathe that can continuously feed a piece of long bar stock and continually spit out fasteners. They were invented many years ago to produce extremely high precision small screws for watches, and in fact Citizen is one of the main vendors of these tools to this day. Based on my experience I would expect the cycle time for making this part to be 30 seconds or so.

Here’s a good video that eli5’s the difference between a Swiss screw machine and conventional CNC.

https://youtu.be/y3y0tATB0lg?si=pkYDT3BV0-6C-aq5

And here’s a video with a high quality soundtrack that shows how the machine combines automatic lathe cuts, mill cuts, and thread rolling without changing machines, swapping cutters, or re-fixturing the work.

https://youtu.be/MPAK5I1HJAw?si=fnMmjDp6ydYSDbfH

And if you need some specialty fasteners made and have an unlimited budget I can reccomed these folks.

https://centrix-us.com/

Well first, the linked article was regarding a weather balloon that impacted the windscreen, not the engine, and it did cause an injury to the flight crew. Here are pictures of the bloody, glass-shard filled flight deck. https://www.facebook.com/aviation247/posts/n17327-united-air... So the hazard is real.

Now back to your uninformed comment. I do certification testing of jet engines, and we most certainly DO NOT test jet engines against the ingestion of airborne electronics.

I have personally loaded and fired the five barrel bird gun at General Electric’s Peebles Test operation many times over the years. We use a range of birds and bird simulators, but none of them are ever chickens, and none of them are frozen.

There is not any requirement for zero engine damage. Little sparrows will do no damage. Ducks and geese cause extensive damage every single time. Extensive engine damage is permitted so long that the engine shuts down without causing catastrophic damage to the airframe. The specific damage that must be prevented, per 14 cfr 33.75, is below. Any other damage is acceptable.

(i) Non-containment of high-energy debris;

(ii) Concentration of toxic products in the engine bleed air intended for the cabin sufficient to incapacitate crew or passengers;

(iii) Significant thrust in the opposite direction to that commanded by the pilot;

(iv) Uncontrolled fire;

(v) Failure of the engine mount system leading to inadvertent engine separation;

(vi) Release of the propeller by the engine, if applicable; and

(vii) Complete inability to shut the engine down.

https://www.ecfr.gov/current/title-14/chapter-I/subchapter-C...

That is why they sell wire spoons.

https://www.steinair.com/product/wire-spoon/

Aerospace Engineer here. In my industry, hand-tied harnesses are commonplace at every level, from homemade garage-built aircraft, throughout all current commercial aircraft, and extending to the Mars Rover. It’s also commonplace in better racecar and motorcycle wire harness builds. I will frequently use cable ties to temporarily assemble a harness, then hand tie the final configuration and cut off the cable ties.

Also, I guarantee you there is no better tool for flush-cutting cables ties so you don’t get scratched by em than the IGAN-P6 side cutters sold on Amazon for around seven dollars. I bypass my Snap-On cutters and grab them every time.

If I am really, really forced to use a cable tie I prefer Cobra Ties, which have a low-profile head that keeps the tail parallel to the band, rather than protruding at a 90 degree angle.

https://www.cobraties.com/collections/cobra%C2%AE-low-profil...

I wonder what your liability would be in the event your balloon were to be struck by a commercial aircraft and cause injury to the flight crew or passengers?

https://komonews.com/news/local/weather-balloon-launched-in-...

Buy low, sell high.

I had my corporate card get cloned by the Wendys at Seatac airport, about 10 years ago. Do you consider that to be a sketchy restaurant? Why are you victim blaming?

I had not used the card in several weeks. Coffee and a breakfast sandwich at Wendys was the only purchase I made that day. ~4 hours later my card was declined when checking in to my hotel in LA. Called their security department, they wanted to know whether I had authorized a $4000 purchase at a Best Buy in Dallas.

Are you proposing that the base of the bullet which is exposed to the burning propellant magically remains at room temperature, and none of the lead in the base of the bullet is vaporized? What about the process of forcing the projectile into the barrel's spiral grooves at very high speed, leaving grooves in the side of the bullet. Where do you suppose that displaced and/or vaporized material ends up? What about the lead styphante that is combusted in the primer? I am not aware of any firearm that has a muzzle filter that removes primer residue from the combusted gunsmoke.

Anecdotally, I've been taking a 5,000 IU vitamin E supplement this winter. Seattle area, indoor desk job, I am a vampire. It does seem to help, I would rate it as going from a C to a B grade. I'd prefer not to use antidepressant medications to fix a problem that for me is mostly caused by living at a different latitude than I grew up in.

Do be aware that not all vitamin E supplements actually contain the dosage that they are labeled at, and that inclues both no-name brands and some big name brands. I'm having trouble finding a good reference on google due to AI and SEO pollution. But I recall Nature Made was labelled accurately and that is what I buy.

My wife on the other hand has struggled with life-long anxiety/depression even when living in Atlanta. For her a fairly low dose of lexapro enables her to live her life like a normal person. We wish we could get her mother to give it a shot for a few weeks, as she now can see a lot of similarities in both their personality traits that were affected by a life of untreated anxiety.

We also have cat that would probably have been put down for fear-biting of people and attacking our mild and mellow dog until we got his aggression under control with kitty prozac. I kid you not, it's a transdermal fluoxetine cream we put in his ear each day. Without the constant anxiety stimulus in the way, his real personality came through and he is actually very sweet. To me at least. Still bites my wife, but not hard anymore, just enough to keep her alert.

Food deserts do exist, but Seattle's Central District is not one of them. This US government tool used to literally be called the "Food Desert Locator" until the current administration re-named it to "Food Access Research Atlas"

https://www.ers.usda.gov/data-products/food-access-research-...

It's really the suburban areas of Seattle that develop food deserts, likely due to restrictive zoning for commercial properties and minimum lot-size requirements that make sure that every grocery store is a long SUV ride away from the cu-de-sac neighborhood.

If the term Food Desert offends you, I can gladly switch to calling it Food Apartheid instead.

https://www.theguardian.com/society/2018/may/15/food-aparthe...

My brother has worked as a stocker for King Kullen in New York for 20 years and is a union worker.

In the Seattle area where the poster is from, pretty much all the grocery stores are unionized. Workers at big stores like Safeway, Fred Meyer, QFC, and Albertsons, and local stores PCC, Uwajimaya are represented by UFCW3000. https://ufcw3000.org/shop-union

Additionally, Teamsters 174 organizes a lot of the grocery freight workers. https://teamsters174.net/warehouse-and-grocery/

You can boot Apple ][ software by connecting your old machine to the audio jack on your cell phone (might need a dongle these days) and streaming from websites like https://asciiexpress.net/gameserver/ . I imagine vinyl would work was well, but I don't have a lathe to cut my own vinyl records. If you feel like throwing a hundred bucks at it for chuckles, you could have one made at https://intheclouds.io/

It's interesting that searches for general concepts (Countryside wildflowers, airplane scenes, train scenes) seem to work pretty well, while searches for specific characters (Ponyo, Yubaba, Porco Rosso) return negligible results.

If you specify all your bolt heads as 19mm and 13mm, then a 3/4" wrench or a 1/2" wrench is usually good enough to get the job done.

Similarly, a 1/4-20 bolt will fit in a M6 tapped hole if you use a large enough hammer.

A hazardous aspect of US threadforms is that #10-32 machine screws and #8-32 machine screws have the same pitch. So you can fit #8 bolts in a #10 hole and sometimes, they FEEL like they made good torque, because they engaged one side of the tapped hole, when they really have no tension capability whatsoever.

Reference the British Airways flight 5390 accident where the pilot got sucked 3/4 the way out the cockpit window and slammed against the side of the fuselage while a flight attendant clung to his feet and the co-pilot safely landed.

Also note that a British designed and built product was using US threadforms...

https://admiralcloudberg.medium.com/the-near-crash-of-britis...

https://en.wikipedia.org/wiki/British_Airways_Flight_5390

Wikipedia has illustrations of the tools: https://en.wikipedia.org/wiki/Cow_tools

You forgot the most important rule of plumbing: Don’t bite your fingernails.

Toilet paper math is the hardest kind of math. According to the print on various different packages of Charmin, and I could not make this up:

12 Mega Plus rolls = 54 Regular rolls

30 Double Plus rolls = 68 Regular rolls

12 Super Mega rolls = 72 Regular rolls

18 Mega rolls = 72 Regular rolls usually, but sometimes are sold as "Bonus Mega = 82 Regular rolls"

On January 1 1999 the USA switched from ICD-9 to ICD-10 for reporting mortality. (ICD-10 was not used for non-fatal clinical coding until 2015.) And as with all new things, morticians likely stuck with the more generic codes from ICD-9 and gradually started using some of the more specific iCD-10 codes over time. ICD-10 has 55,000 different codes compared to 17,000 codes available in ICD-9.

Could the gradual adoption of a more granular coding system in 1999 explain the increase in reported deaths due to falling that starts in 2000?

Absolutely no one cares what Claude has to say about anything. Are you completely incapable of forming and sharing an independent idea?

I make up for them buy currently owning 10 of the damn things. One for the main house stereo, 2 in a DJ setup in the basement, one for my all-tube Harman-Kardon setup in the office, 4 in the ready-to-sell stack, and 2 nostalgic display pieces that just collect dust.

880 full length albums in my 12" collection, with pressing dates between sometime in 1955 and this October 2025. 70 years... They all get fairly regular rotation, I alternate between choosing something I feel like listening to, and using the Randomize button in Discogs.com where I track my collection.

A someday project is to figure out how set up an automated workflow to use ambient song detection/recognition to magically recognize when I am playing an album and scrobble it to last.fm to track my plays. It's nothing I want to do manually but it would be neat to see my own analog spotify wrapped summary.

Buildsjets laws of spacecraft design:

The propellant storage shall be designed and located such that a catastrophic failure of propellant storage will not damage the passenger compartment.

The propulsion system shall be designed and located such that a catastrophic failure of the propulsion system will not damage the propellant storage or the passenger compartment.

The launch system shall be designed to ensure a minimum of two survivable abort alternatives at each phase of the flight. Each abort scenario shall be validated by a flight test before certifying the system for general use.

The re-entry system shall be designed so there are no single points of failure. If single points of failure are unavoidable, a method pf inspection or surveillance shall be developed to detect the failure prior to de-orbit.

In-orbit repair procedures for foreseeable types of damage shall be developed and validated prior to certifying the system for general use.

Yeah, this is all 20/20 hindsight. But we really need to avoid developing ANYTHING similar to the STS in the future. I truly believe it set us back by 50 years.

For the labor? Sure.

Always nice to stumble across your posts. Any progress on the jailbreak?

Don’t knock it till you try it:

I call upon thе blood-moon goddess for I have but one request.

I've laid the altar, charged the crystals, the circle, I have blessed.

Then make clean && make all, BOOM compiles with no errors or warnings every time.

Witchcraft.