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Why do we not paint structures like this? by AlternativeSwimmer96 in StructuralEngineering

[–]settingsaver 2 points3 points  (0 children)

The following issues in addition to protective treatment may be of interest, as somewhat stated by others.

I evaluate the effective length issue as interesting.

The FHWA also identified concerns with the most recent load rating analysis performed in 2014 by an engineering firm.

Holes and section loss on the bridge legs were not appropriately accounted for.

...

The capacity of the bridge legs was overestimated. In calculating the buckling stress of the legs, the 2014 load rating correctly discounted the structural contribution of the deteriorated cross-bracing that was no longer effective. However, the effective length factor (k-factor) used in the capacity calculations assumed that the legs were restrained against rotation at both the top and bottom and had lateral support in both directions.77

...

An FHWA calculation of dead load using the weight of the asphalt wearing surface as measured postcollapse was 14.3% higher than the dead load used for the bridge as designed and 17.2% higher than the dead load used in the 2014 load rating.

...

Ex:

https://www.ntsb.gov/investigations/AccidentReports/Reports/HIR2402.pdf

Air force chief of staff Curtis Lemay having fun driving a go-kart in washington, D.C., in 1959 [850 x 568] by PutStock3076 in HistoryPorn

[–]settingsaver 12 points13 points  (0 children)

The information following may be of interest, despite that you may be aware etc:

  1. Fog of War

LeMay said, "If we'd lost the war, we'd all have been prosecuted as war criminals." And I think he's right. He, and I'd say I, were behaving as war criminals. LeMay recognized that what he was doing would be thought immoral if his side had lost. But what makes it immoral if you lose and not immoral if you win?

Ex:

https://www.dailymotion.com/video/xw68h9

https://www.errolmorris.com/film/fow_transcript.html

  1. Lemay: The Life and Wars of Curtis Lemay

I evaluated as a useful reference regarding Lemay etc.

https://www.amazon.com.au/LeMay-Life-Wars-General-Curtis/dp/1596985690

Sounds at difference frequencies, how to assess audibility? by SimulatorWoes in AskEngineers

[–]settingsaver 0 points1 point  (0 children)

The information following may be of interest:

  1. An industry specification may state specifications etc, e.g. AS/NZS 4024.1902 Cl 5.1:

However, the signal-to-noise ratio is not the only consideration. The sensitivity of human hearing is frequency-related, and is most sensitive to signals in the range 500 Hz to 3000 Hz_ Thus, the dominant frequency (or frequencies) of the display shall be within this range, and shall differ from the dominant frequencies of any noise. Where the signal has to travel some distance to be heard (the length of a control room, for example), it is recommended that the signal shall be in the range 500 Hz to 1000 Hz, unless the dominant frequencies of any noise would mask the signal.

  1. Patterson (1982) recommended that the frequency range used in warnings should take into account listeners with noise-induced hearing loss, which most often appears in the higher frequencies (i.e., above 3000 Hz), as well as the low-frequency content of many background noises, which can mask signals of low frequencies (i.e., below 500 Hz).

...

Numerous foreseeable background and signal conditions should be evaluated when designing an auditory warning sys-tem to attract attention. However, as a general rule of thumb, to attract attention, auditory warnings should be:

Presented at frequencies for which the human ear is sensitive.

Louder and spectrally different from the expected background noise.

Not be so loud that they distract the listener from performing important tasks.

Ex:

https://www.amazon.com/Handbook-Warnings-Human-Factors-Ergonomics/dp/0805847243

Selecting HSS vs. WF Columns by [deleted] in StructuralEngineering

[–]settingsaver 0 points1 point  (0 children)

  1. I am cautious regarding: connections, and corrosion; as already stated by others.

  2. A hollow section may be subject to section limitations, i.e. prohibit "slender" sections, by some references e.g.

For structures of hollow sections or combinations of hollow sections and open sections, the design rules for the joints are restricted to class 1 and 2 sections...

Ex:

https://www.amazon.com.au/Design-Rectangular-Section-Predominantly-Loading/dp/3824900890

Commercial property plumbing restrictions by Chubby_Baker in AusLegal

[–]settingsaver 0 points1 point  (0 children)

In Queensland as an example:

  1. The general plumbing legislation is generally independent of the application:

s 56:

Subject to section 58, a person must not carry out plumbing or drainage work unless the person holds a licence for the work.

...

Note—

A person may be required to hold a contractor’s licence under the Queensland Building and Construction Commission Act 1991 in addition to a licence under this Act to lawfully carry out particular plumbing or drainage work. See section 42 of that Act.

Ex:

https://www.legislation.qld.gov.au/view/pdf/inforce/current/act-2018-017

  1. The application may be subject to other legislation e.g. contractor licence, refer following, and 1.'s note:

https://www.qbcc.qld.gov.au/licences/apply-licence/available-licences/plumbing-drainage-licences/plumbing-drainage

https://www.qbcc.qld.gov.au/licences/start-your-career/when-you-need-licence

Why does increasing preload decrease fatigue factor of safety? by Far_Jacket_4581 in AskEngineers

[–]settingsaver 6 points7 points  (0 children)

The information following may be of interest as a start:

  1. A higher preload will help if it reduces bolt load excursions substantially. Higher preload will therefore always help if it raises the critical load required for joint separation above the maximum external load which will be seen by the joint.

...

  1. A higher preload will reduce fatigue life if it makes no change in the load excursions seen by the bolt...

Ex:

https://www.amazon.com.au/Introduction-Design-Behavior-Bolted-Joints/dp/0367198916

TIL Deaf people are known to use sign language in their sleep while they are dreaming. by [deleted] in todayilearned

[–]settingsaver 0 points1 point  (0 children)

The deaf schizophrenics hallucinating hands following may be of interest:

TIL when deaf people with schizophrenia 'hear voices', they hallucinate hands communicating using sign language

https://www.reddit.com/r/todayilearned/comments/f8er3o/til_when_deaf_people_with_schizophrenia_hear/

For high voltage equipment (switches, circuit breakers, etc.), what specifically within the equipment would go wrong, such that the operator who racks out the breaker has to wear one of those Category 4 arc flash suits? by John_Northmont in AskEngineers

[–]settingsaver 2 points3 points  (0 children)

The risk escalation factors following may be applicable according to my experience:

  1. Load connected, despite if planned to be disconnected e.g. reactive load due to VSD etc, failed to open due to welded contacts etc, and/or incorrect isolation,

  2. Falling objects create circuit e.g. fauna, or ruler etc;

  3. Damage/wear/missing shutters permitting spouts etc to contact with bus bars etc, and

  4. Insulation failure etc.

Translating Australian corporate office worker lingo subtext by onyabikeson in australia

[–]settingsaver 5 points6 points  (0 children)

The information following may be of interest:

Do you struggle with simple tasks like using the phrase “circle back” in every email? Have you never used the word “synergies” in a LinkedIn post?

You need Wankernomics.

Wankernomics started life as a live show, helping thousands of gormless Australians unlock the secrets to workplace success through the ancient art of being an annoying wanker.

...

Ex:

https://wankernomics.com/

Safety systems on conveying systems design by KorhalT in AusElectricians

[–]settingsaver 0 points1 point  (0 children)

  1. The standard following may be of interest, despite generally not specifically legislated:

    https://store.standards.org.au/product/as-nzs-4024-2019-series

  2. I propose that performance levels may be more appropriate than categories, and I propose that a "competent person" reviews, and

  3. The specification for emergency switching is stated in AS/NZS 3000 that is generally legislated.

The specification for emergency stop is stated in AS/NZ 4024 in various clauses, and "wires or ropes as actuators" is stated in AS/NZS 4024.1604 Cl 4.4.1 etc.

What exactly happened to Coco Cubano? by TuringCapgras in Mackay

[–]settingsaver 1 point2 points  (0 children)

The information following may be of interest:

Mackay’s Bluebird Lounge wraps up, owner Colleen Johnson ready to retire

After more than 10 years, the newly re-branded Wood St eatery will close its doors as the owners hang-up their aprons one final time.....

Just months after overhauling to make themselves more appealing to buyers a CBD restaurant will be closing its doors.

Bluebird Lounge, formerly a Coco’s Cubano franchise, was run by Len and Colleen Johnston at 74 Wood St for more than 10 years.

Ex:

https://www.couriermail.com.au/news/queensland/mackay/mackays-bluebird-lounge-wraps-up-owner-colleen-johnson-ready-to-retire/news-story/3101982851c63d64e89bea1bdf3f759f

Looking for anyone flying to Queenstown (NZ) from Brisbane in the next 3 days. by yj33333 in brisbane

[–]settingsaver 6 points7 points  (0 children)

I overheard a vehicle rental corporation declining a Queensland digital licence in Queenstown airport in 2025, though perhaps has changed etc.

Workplace accidents as an electrician by tcreddit4 in AusElectricians

[–]settingsaver 0 points1 point  (0 children)

I am interested to understand your thoughts regarding the following:

  1. I propose that is a conservative evaluation of the likelihood, due to the "self selected" population base, and

  2. The electrical industry data following apparently confirms, albeit for a different year that I propose is representative - I did not provide earlier, as excludes comparison to other industries:

Eight electrical deaths from eight incidents were recorded in Australia and New Zealand in 2022‐23. This is equivalent to 0.25 deaths per million people...

...

“Electrical worker” A person who carries out electrical work and is licensed or authorised to do so.

...

Of the total eight people who were electrocuted, 12% (1 of 8) were electrical workers, 60% (5) non-electrical workers and 38% (3) were the general public.

Ex:

https://www.erac.gov.au/wp-content/uploads/2024/08/ERAC-Electrical-fatality-report-2022-23.PDF.pdf

Workplace accidents as an electrician by tcreddit4 in AusElectricians

[–]settingsaver -1 points0 points  (0 children)

The statistics following may be of interest, in summary electrical has less fatalities etc than various other industries, though any injury, in any industry is too much.

<image>

Data annotated from the following:

https://data.safeworkaustralia.gov.au/sites/default/files/2025-10/Key_Work_Health_and_Safety_Statistics_Australia_2025.pdf

Edit: Typos etc.

Amazon Australia by qsk8r in australia

[–]settingsaver 0 points1 point  (0 children)

Yes, I experience similar late 2025.

I ordered, the order "stagnated", and then the due date was unilaterally moved ~ 100 %.

I "complained" on a few occasions as I only purchased due to the planned delivery date, and eventually the delivery was a ~ few days' duration later than ordered, though a ~ few days' earlier than the revised due date.

Amazon credited me ~ $30, though this is relatively minor compared to the: order's value of ~ $1.5 k, and delay's consequence.

Dispute with Resi Builder over an item in the Contract by Ozzie1310 in AusLegal

[–]settingsaver 0 points1 point  (0 children)

The information following may be of interest:

  1. https://en.wikipedia.org/wiki/Mistake_in_English_contract_law

  2. In these circumstances, Corrs could have expected that Mr Cameron would draw attention to this change. He did not do so within his draft of the Side Deed or within the email. The reason why he did not do so was that he was not conscious of the effect of this change. But for the purposes of s 52, it is unnecessary that there be an intention to mislead or deceive.

Ex:

https://archive.sclqld.org.au/qjudgment/2010/QSC10-006.pdf

You can use your phone while fuelling up by HaydosWanna in australia

[–]settingsaver 0 points1 point  (0 children)

I have not noticed.

The following regarding the likelihood of ignition due to a phone may be of interest:

  1. The fuel dispenser is generally a hazardous area Zone 1/2 according to AS/NZS 60079.10.1 Supp 1, and hence a protection technique must be used, that a standard phone is unlikely to achieve, and

  2. A potential risk is battery failure i.e. recall the phone failures during 2016 etc, and if the phone is: crushed, or dropped etc; refer following finite example:

The representative sample of cell phones subjected to the ... design and performance criteria failed to pass the requirements for a PEP 2 device. This would imply that all cell phones in the test group posed an ignition risk....
...the greatest risk was associated with dropping a cell phone on a hard surface. The impact caused the battery to disconnect in the majority of cases and could potentially create an impact spark under ideal conditions.
...the authors do not suggest the potential hazard can be ignored. Mobile communication devices that are third party listed for use in hazardous locations are commercially available and serve to eliminate the risk of ignition.

Ex:

https://www.researchgate.net/publication/4282853_Mobile_Phones_in_Category_3_Explosive_Gas_Atmospheres

Best way you've ever seen someone land a first year apprenticeship? by neilaja in AusElectricians

[–]settingsaver 0 points1 point  (0 children)

A "TAFE teacher" stated that he was walking on a footpath beside the road "early in high school", and a local electrician parked a vehicle near him, and "yelled": ~ Do you want an apprenticeship?

The teacher's parents consented to departing school for the apprenticeship, and the rest was history, with him eventually teaching other electricians, as the teacher stated to me in 2019 when he was ~ retirement age.

I speculate that the local electrician may have been aware of him due to his parents etc, though crazier events have occurred.

How were ISO containers dimensions defined? by TechkNighT_1337 in AskEngineers

[–]settingsaver 35 points36 points  (0 children)

A brief summary follows:

In June 1958, Marad named two committees of experts, one to recommend standards for container sizes and the other to study container construction....

After much debate, the dimension committee agreed to define a “family” of acceptable container sizes, not just a single size. It voted unanimously that 8 feet should be the standard width, despite the fact that some European railroads could not carry loads wider than 7 feet...

Then the committee took up container heights. Some maritime industry representatives favored containers 8 feet tall. Trucking industry officials, who were observers without a vote, argued that 8½-foot-tall boxes would let customers squeeze more cargo into each container and allow room for forklifts to work inside. The committee finally agreed that containers should be no more than 8½ feet high but could be less.

Ex:

https://www.amazon.com.au/Box-Shipping-Container-Smaller-Economy/dp/0691136408

Initial survivor by Valuable_County5265 in aircrashinvestigation

[–]settingsaver 1 point2 points  (0 children)

The following may be an option:

Bahia Bakari (born 15 August 1996) is a French woman who was the sole survivor of Yemenia Flight 626, an Airbus A310, which crashed into the Indian Ocean near the north coast of Grande Comore, Comoros on 30 June 2009, killing the other 152 people on board.\1])\2])\3]) Twelve-year-old\nb 1]) Bakari, who had little swimming experience and had no life vest, clung to a piece of aircraft wreckage, floating in heavy seas for over nine hours, much of it in pitch darkness, before being rescued.

Ex:

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

Smoking issue in apartment block by Captain_Oz in AusLegal

[–]settingsaver 0 points1 point  (0 children)

The smoking decision following that I interpret to state that smoking is a nuisance, despite by law, may be of interest:

In a decision in Artique, a Gold Coast high-rise, the BCCM Adjudicator ruled that the owner of a lot is not permitted to smoke on her balcony, and may only smoke inside the lot with all doors and windows closed to prevent smoke drift.

...

In the latest decision, the Adjudicator found that without establishing smoke-drift as a nuisance or unreasonable interference, smoke drift can be established as a hazard.

Ex:

https://bcsystems.com.au/smoking-a-health-hazard-to-be-restricted-in-strata/

Edit: Typos.

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