agurk
Beginning to get worried and with no-one to talk to in the construction site of an airport I discovered that I needed to rotate my phone and then the extra columns appeared on their website. Yes I had tried scrolling and zooming, but in portrait it wouldn't actually render outside of the visible width.
Wikipedia has an article[0] of various people who died on stage and also some shortly afterwards, such as Molière.
I was going to suggest Sid James as a replacement for your anecdote, although he was pronounced dead on arrival at the hospital, so it's possible he died en route. The chap after him on the list, Aimo Leikas, seems like a good candidate as he shot himself during a very convincing Russian roulette act.
[0] https://en.wikipedia.org/wiki/List_of_entertainers_who_died_...
> The Magnum debuted in Germany in 1989, and hit the UK the year after.
Curiosity piqued, and one wikipedia article later [0], it turns out that it was originally a Danish invention developed in the late 1980s, first mass produced in Autumn 1988. It also mentions a Belgian needing to develop the needed chocolate in 1987.
Of all places I would not have guessed Aarhus was the home to Magnum, and today it's celebrated with a gym called Friskohus (Frisko is the Danish Unilever sub-brand) on the site today.
Losing a fan blade, as demonstrated in your two youtube links, is both a more likely event to occur and low enough energy to be able to contain with a reasonable structure.
However consider the situation in [0] where a turbine disk became detached from its shaft. The disk is still taking power from the exhaust gas, but rather using the energy to power the compressor or rotate the fan it is now just increasing its own kinetic energy. This continues until the incredibly strong turbine disk rotates itself apart. From the linked article:
> For engineering purposes, disk fragments are assumed to have infinite energy at the moment of release; they will cut through any reasonable material and cannot be contained
You can see from photographs of the aftermath, the nacelle is missing where this happened
[0] https://admiralcloudberg.medium.com/a-matter-of-millimeters-...
Of course BOAC and BEA had been made my consolidations of many smaller airlines which gets messy quickly when tracing the lineage. Even Cambrian and Northeast had formed British Air Services prior to this which was 70% owned by BEA.
So it is technically true that is was started as a state owned airline, but one made from companies that were originally created as private with a mixed history of state ownership.
The trivia section of the German wiki page of the same film says there's a disputed rumour that the film was prolonged to help the young extras avoid conscription.
[0] https://en.wikipedia.org/wiki/Die_Feuerzangenbowle_(1944_fil...
Curiously there's no English wiki page for it, but machine translation is good these days:
[0] https://db-engineering-consulting.com/en/projects/munichs-se...
More modern engines have electronically controlled throttle plates, and this is definitely somewhere you could do something clever like you suggest - cutting fuel flow but also maximising airflow when there is zero throttle input.
I assume engine braking is generally considered a beneficial thing by manufacturers, but it could be fun to be able to customise the amount. Or do something like have the braking come on gently at first then harder. Maybe even try and have a linear or flat response curve vs. engine rpm.
If you release the compressed air without pushing the cylinder down you would lose that energy, but you would need a extra device to do so (by lifting a valve at the right time). This option does exist for large vehicles like trucks as a compression release engine break [0], but this isn't something you'd have on a family car.
In a petrol engine you always want the same ratio of petrol to air in the mix that is taken into a cylinder. As you want to vary the amount of fuel, and therefore power developed, you have to be able to therefore limit the amount of air that is sucked in. Otherwise the engine would always run at full power.
There is a mechanical restrictor called a throttle plate that lives inside the throttle body that restricts how much air the cylinder can pull in (and therefore how much fuel is injected to get the same fuel/air mix). This is controlled by the throttle. When you are coasting, this plate is in its most closed position. This creates significant resistance on the intake stroke, and is where the majority of energy is lost during engine breaking. This is also known as a pumping loss.
Diesels always intake the same amount of air, so they can compress it enough to autoignite the fuel. They vary the amount of fuel injected to the same volume of air. This means no throttle body or plate, so unless an extra exhaust restrictor has been added there is minimal engine braking on a diesel engine.
[0] https://en.wikipedia.org/wiki/Compression_release_engine_bra...
This is on Android though, so perhaps an ecosystem difference?
Assuming you meant died instead of lived to avoid a potentially nonsensical reading, this is not true.
It seems this factoid[0] has been around since the 1970s, and at least in 2007 it was estimated to be 6% of people who'd ever lived being currently alive [1]
[0] In the original sense of factoid - being fact-like, but not a fact (i.e. not true). C.f. android, like a man
[1] https://www.scientificamerican.com/article/fact-or-fiction-l...
I took them in to be rebuilt, but after inspection they said the stiffener had come loose, and nothing could be done. Here have your expensive and now broken boots back.
I'd assumed when I got them I'd be wearing them for decades, and at least a few rebuilds. Maybe there was something wrong with that specific pair, but I did have a goodyear welted sole randomly detach from a pair of six month old city shoes from the same firm. And yes I had been looking after my shoes (frequent cleaning and polishing, always using shoe trees, skipping days between wears, etc).
When I had a pair of Church's fall apart I put that down to them no-longer being a quality brand, but now I don't think you can guarantee a long life just as the shoe was expensive and from a reputable brand. I have many shoes that have lasted better (and now since covid I don't wear polished shoes daily), but that does sometimes feel like luck of the draw.
How accurate a missile needs to be is a whole other dimension though. If the value of a missile is as retaliation to destroy a city (countervalue) then it can be a large warhead and "miss" by quite a margin but needs some form of credible survivability of an enemy first strike. If the missile is to be used to destroy enemy military installations (counterforce) then it needs to be a lot more accurate but usually the implication is as a first strike so less survivability is required.
When you have nuclear weapons that you can drop from manned aircraft, ICBMs from silos and SLBMs controlled by different military branches there is going to be a lot of politics over what the missile is for, which will determine its required accuracy, which will be a factor on if it needs star sighting.
Deceleration is a useful but non-technical term, like vegetable. A tomato is a fruit which is a tightly defined concept, but it is in this loose category of things called vegetables. It's still useful to be able to call it a vegetable.
From a physics perspective all changes in motion (direction and magnitude) are acceleration, and it's correct to say the designers had to consider acceleration in most (all?) directions when designing the tram. This is including gravity's, as they tend to give you seats to sit on, rather than velcro panels and straps like on space ships.
It is useful to say to your friend in the pub that you got thrown out of your seat due to the tram's heavy deceleration, rather than give a precise vector.
There's definitely a metaphor to be made for trolling for data, that GP could have been intentionally making. I've certainly seen that idiom used before, although it could have been an eggcorn [2] for trawling.
[0] https://en.wikipedia.org/wiki/Trolling_(fishing)
[1] https://en.wikipedia.org/wiki/Troll_(slang)#Origin_and_etymo...
It's the same for codeine-mixed products. Recently I got denied a simultaneous purchase of pseudoephedrine and ibuprofen/codeine - I was I was only allowed one.
I'm not sure if it's policy, law or I just looked suspicious.
It is a normal procedure to be able to safely land this way when power has been lost, and in some ways is safer than a gliding fixed wing aircraft as you don't need a runway to land on.
Of course catastrophic failure is possible in a helicopter where the rotorblades can't turn, and then autorotation won't work. But then if a wing falls off a fixed-wing aircraft, they generally can't be controlled (interesting exceptions do exist like with the Israeli F15[1]).
[0] https://en.wikipedia.org/wiki/Autorotation
[1] https://en.wikipedia.org/wiki/1983_Negev_mid-air_collision
When being taught how to ride a motorcycle, one of the lessons is a series of extra checks that you're not taught when learning to drive a car. These are known as lifesaver checks.
Entering a roundabout is a left turn in Ireland (right turn in right hand drive countries) so you would check over your left shoulder to make sure nothing was on your left. This is performed after doing a normal right and ahead check for traffic already on the roundabout.
I have never caught anything with a roundabout lifesaver (I have in other situations) but I can see how it's useful on roundabouts with multiple entry lanes, or if something like a bicycle had appeared on your right.
Is it saying Smil said (is that meant to be countered with?) PV would cost 0.05 USD/W in 2020? Or was that meant to be Al Gore claiming that price? It seems it can't be his predicted reduction as he said 25% less, so did he want to say that is would be 3.38 USD/W in 2020 (75% of the 2009 price)?
And the current cost - 0.2W/USD is 5 USD a Watt - are the units reversed there? A quick google shows a variety of prices, with nothing being 20 cents a Watt [0] - $0.5-1.50 for the less efficient thin film types quoted here. All seem quite a bit cheaper than $4.5 a watt though.
[0] https://www.forbes.com/home-improvement/solar/cost-of-solar-...
Using [0] $3.5 bn in 1981 would have been worth $11.7 bn in 2023.
Another comment [1] noted (but unfortunately didn't cite) that two years later the damage was assessed at $36 bn, or $110 bn in 2023 dollars.
Is this the case in reality? Everywhere I've lived drinking glasses were not accepted as part of domestic glass recycling due to their composition [0]
Perhaps there is a commercial recycling route for pubs though? A quick google didn't turn anything up.
[0] https://www.friendsofglass.com/ecology/what-glass-can-you-re...
A quick look at a few soft drinks I could think of, and their UK sweeteners:
Fanta: Aspartame, Acesulfame
Coke Zero: Aspartame, Acesulfame-K, Enzymatically Produced Steviol Glycosides
Pepsi: Acesulfame K, Sucralose
Irn Bru: Aspartame, Acesulfame K
Tizer: Acesulfame K, Sucralose
Old Jamaica Ginger Beer: Sucralose
Lipton Iced Tea: Steviol Glycosides from Stevia
Ribena: acesulfame K, Sucralose
[0] - https://en.wikipedia.org/wiki/1994_Fairchild_Air_Force_Base_...
[1] - https://theaviationgeekclub.com/the-story-of-bud-holland-the...