Snowpix

joined 2 years ago
[–] Snowpix@lemmy.ca 5 points 16 hours ago* (last edited 10 hours ago)

Nope! The electric siren wasn't invented until 1905 by William Box. The steam locomotive hadn't been invented until 1802 when Richard Trevithick built the first. Steam engines in general were still in their relative infancy by 1800, and the closest we had to a warning siren before 1800 was a device invented by John Robison that was used to power some of the pipes in a musical organ rather than warn anyone.

[–] Snowpix@lemmy.ca 1 points 1 day ago (3 children)

Donald Trump is already Vilified by most of the country anyway, so why not?

[–] Snowpix@lemmy.ca 21 points 2 days ago

Milk-drinkers and the Thalmor, probably. Damn elves.

[–] Snowpix@lemmy.ca 6 points 2 days ago

Absolutely nothing!

[–] Snowpix@lemmy.ca 21 points 2 days ago* (last edited 2 days ago) (1 children)

All Firefox extensions work with Librewolf, Bitwarden included. It's still regular Firefox under the hood, just with different settings enabled by default, uBlock Origin out of the box, and some annoyances removed.

[–] Snowpix@lemmy.ca 7 points 3 days ago (1 children)

When he sold Minecraft to Microsoft he became a billionaire, quickly lost touch of reality, and fell down the right-wing pipeline to become a total shithead. He kept posting homophobic comments on Twitter, called for a heterosexual pride parade and suggested anyone opposed to one should be shot, and bought into the whole QAnon nonsense. There is a reason Minecraft hardly acknowledges his existence anymore, Mojang distanced themselves from him because of his behaviour.

[–] Snowpix@lemmy.ca 13 points 3 days ago

The job of a CEO is to make the line go up, and that almost always comes at the expense of the consumer and the quality of the product itself.

[–] Snowpix@lemmy.ca 17 points 3 days ago (1 children)

Yeah, that tracks. It's a lot easier to be a dick on the internet than to be a dick to someone face to face where there might be actual consequences. I'm sure you're a very pleasant and not at all toxic person. Definitely.

[–] Snowpix@lemmy.ca 18 points 4 days ago (3 children)

That's unhealthy. It makes you an unpleasant person to be around, and I hope you don't treat people in person the way you've treated people here.

[–] Snowpix@lemmy.ca 24 points 4 days ago (2 children)

I'm sorry that you're having such a bad day that you feel that you need to take it out on other people with such aggression. Perhaps you should go for a walk and clear your head.

[–] Snowpix@lemmy.ca 50 points 4 days ago (4 children)

That's weirdly aggro for something it'd take you, like, 2 minutes at most to look up and find for yourself. You don't need to rely on OP or anyone else to do it for you.

[–] Snowpix@lemmy.ca 5 points 4 days ago

On top of having far worse visibility, taking up too much space on roads and parking lots, and being responsible for more pedestrian deaths than smaller, more reasonably proportioned vehicles?

 

For an album with such a long name, it has surprisingly few songs compared to most of Bomb the Music Industry!'s other albums. They definitely made up for it though, as its songs are all great with Slumlord and Struggler being my personal favourites. They're incredibly catchy and get stuck in my head constantly!

This album does not have an official album cover. Instead, when it was made available for download on Quote Unquote Records, there were 8 different covers depicting someone who appears in the album with the word ADULTS! and a colour filter over the image. The website would only show one of these covers at a time, which was chosen at random.

The image here is all eight of those individual covers, as well as a 9th cover made in the same style that was used for the album's vinyl release.

 

Behold, the loudest siren ever built! Built between 1942 and 1957, Chrysler and Bell Laboratories worked together to create a siren that could outdo everything else. Boasting a deafening sound output of 138 decibels at 100 feet, a single Chrysler could fill the role of tens or even hundreds of smaller sirens. Back in WW2 and the Cold War, expense was secondary to making sure everyone could hear the warning.

Powered by a 180 horsepower Chrysler Firepower HEMI V8 (units between 1942-52 used a 140 hp IND-9 inline-8) gas engine, the Chrysler was not only powerful, but also able to run entirely independently of grid power so that they could not be silenced by attack. The engine drove a gigantic slotted disc known as a chopper at 3400 RPM, through which pressurized air was forced through its openings by a two-stage compressor. The chopping of the pressurized air at a certain frequency is what creates the noise, with the Chrysler peaking at about 460 hz. The entire siren sat on a turnable, which pointed its six large horns in all directions as it rotated at 2 RPM.

Unfortunately, such a siren is not exactly the easiest to maintain or run. Older units required someone to sit atop the siren and run it manually, until remote start and run capabilities were developed in the early 50s. The engine is fuel-hungry and requires a lot of maintenance, which made them unpopular with those who had to keep them running. As a result, all of these sirens were decommissioned by the 1980s. Many were removed, others left to rot, and some thankfully survive in preservation. By 1957 engine-driven sirens fell completely out of favour, as powerful electric sirens such as the Thunderbolt, Super Sirex, and Mobil-Directo performed very well without requiring much maintenance.

 

One of my favourite albums, Jeff is an incredible songwriter and indie musician who was the founder of two awesome bands, The Arrogant Sons of Bitches and Bomb the Music Industry!. My favourite song from this album is definitely Scram!

As a bonus, this album has a ska punk version called SKA DREAM!

 

Because oppessing people is okay as long as you're the one doing it for totally good reasons! Absolute power TOTALLY won't corrupt you! Even funnier how a ton of Hexbear tankies showed up to that thread to downvote bomb everyone, just like they're known for doing. Haven't changed one bit in the past year or so!

 

One of my favourite albums of all time. I don't think there's a single bad song on the album, I highly recommend it if you like artistic punk rock with horns.

 

I think this community will enjoy this song lol

 

A 1952 advert from Federal Enterprises advertising their Thunderbolt 1000 and Model 2 outdoor warning sirens. The Model 2 is still in production today, while the Thunderbolt was made until 1990. Both can still be found in service across the North America, though many Thunderbolts are starting to be replaced with newer sirens.

Federal Enterprises now runs as Federal Signal Corporation, and many of the listed cities still use old and new Federal sirens.

 

This ad dates to the early-mid 1980s. The siren advertised is the Penetrator-10 (P-10 for short) which is a 10-horsepower electric outdoor warning siren built by Alerting Communicators of America (ACA). ACA was the siren division of Biersach & Niedermeyer (BNCO), a company previously shown in the Mobil Directo ads. The P-10 boasted a rating of 125 decibels at 100 ft, with a double-sided 10 horsepower motor driving both the chopper (which makes the noise) and the chain-drive rotation mechanism underneath the siren using a gearbox. The siren used weather-resistant fibreglass for the projector and motor housing, which was something ACA was famous for as other companies used steel. It could also be single or dual-tone depending on what was needed.

The P-10 was released in 1980, replacing the Allertor 125 which was the same siren at its core, but used a similar projector to the Mobil Directo. This projector was found to suffer from water building up in the horn and freezing, which would jam up the chopper and burn out the motor. The P-10 didn't have this issue, which is why it replaced the Allertor. The P-10 was also sold alongside the 15HP Penetrator-15, and the monstrous 135 decibel Penetrator-50, which holds the record as the loudest electric siren ever built.

After ACA's bankruptcy and reformation into the American Signal Corporation in 1994, the P-10 was discontinued in favour of the P-15, which would be renamed to the RM-127 until it too was discontinued in 2002. The P-50 would be sold until 2007 under the name T-135AC. American Signal Corporation still exists today, selling the Tempest, E-Class, and i-Force lines of sirens.

 

This ad was released roughly around 1948, advertising the Mobil Directo air raid siren. I've posted an ad for this siren previously, which only featured the Mobil Directo's gas engine-driven BN52 model. This ad introduced a new variant of the Mobil-Directo, driven by a 10HP electric motor instead of the 25HP Wisconsin aircooled engine. This new electric model proved extremely successful, as engines require significantly more maintenance and are far less practical for siren use than a motor.

The new model, known as the Mobil Directo BN44E, saw widespread use across the United States and Canada. Rated at 126 dB @ 100ft for 10/12-port dual tone models to nearly 128 dB for 8-port single tone models, the BN44E was louder than most other sirens during the time of its production. The engine-driven BN52 would see sales dry up quickly after the BN44E's release, being discontinued in 1953. The BN44E would be sold until 1967, when BNCO was forced to stop making sirens due to stiff competition from Federal Sign & Signal.

BNCO would create a new division, known as Alerting Communicators of America (ACA) who would redesign the Mobil Directo into the Allertor 125, which saw the steel projector replaced with a fiberglass projector, and the dual belt-driven pulleys on the rotation drive replaced by a single chain-drive rotation mechanism under the siren. The Allertor 125 would be sold until 1981, when it was replaced by the Penetrator-10 which replaced the large projector with a simplified horn.

 
 

The Model M was an early electric siren first developed in 1918-1919 by the Inter-State Machine Products Company, who would later rebrand to the Sterling Siren Fire Alarm Company based out of Rochester, NY. The Model M was perhaps the most popular and widespread fire siren sold in North America, with units being sold across the US and Canada in great numbers. It is said that nearly every volunteer fire department in the eastern US had a Sterling Model M, or Sterling's other sirens such as the Model 5VX or Little Giant.

Unlike earlier electric sirens such as the Denver sirens I talked about in a previous post, the Model M was designed from the ground up to be weatherproof. Reliability in an emergency is everything, and its designer, Merton C. Armstrong, knew this. The choppers are covered with rounded "sounders" which also direct sound downwards, the motor is protected by a cover, and the air intakes on each side had protective wire mesh to keep debris out. By 1928, the siren would be improved with metal louvres on the intakes to further protect it. The Model M used motors between 3-10 horsepower, could be single or dual headed, and were rated to roughly 115 decibels @ 100 ft.

The Model M as previously mentioned saw incredible success. As shown by a friend of mine who made a map of every known Sterling siren, these sirens found their way everywhere. Unfortunately, by the early 1970s, competition became too great as Sterling's 50 year old design became obsolete. Sterling went out of business in 1972, but its designs were bought by a new company known as Sentry Siren who produced the Model M until 1986.

Sentry Siren is still in business today, and many of its sirens are directly based on the Model M's chopper design which is a testament to how good the Model M was. Many Model Ms remain in service today, including several units which are roughly 100 years old. Van Alstyne, TX's Model M is speculated to be the oldest surviving Model M, and is currently still in service.

Video of an early single tone Model M in Van Alstyne, TX, presumably the oldest known Model M

Video of a later dual tone Model M with louvred intakes in Columbus Grove, OH

 

The Thunderbolt was one of the more unique designs for an outdoor warning siren. Instead of using a large chopper (the part that makes the noise in mechanical sirens) the Thunderbolt uses a small chopper through which pressurized air is fed from a Roots blower at the base of the siren. Because the feed of air is constant from the blower, the siren would not lose volume as it raised and lowered in pitch, unlike conventional sirens. Despite having a chopper diameter of only a few inches across, the Thunderbolt was more powerful than most sirens of its era at ~127 decibels @ 100 feet. The only siren that could beat it in 1952 was the Chrysler Air Raid Siren, which was powered by a Hemi V8 engine.

Thunderbolts were produced by Federal Enterprises (later Federal Sign & Signal and then Federal Signal Corporation) from 1952 to 1990. Federal's main competition, Alerting Communicators of America, famously created their own Roots-blown siren called the Hurricane 130 to compete with the Thunderbolt with questionable results. The design, while high-performing, was also maintenance intensive as the rotation mechanism and blower had belts that needed to be replaced on occasion. It would be succeeded by Federal's 2001 siren, which is sold today as the 2001-130.

Video of a Thunderbolt 1000

view more: next ›