Update
So they finally saw the need for a bit more than duck and cover?
Ever the optimist, New York has reminded its citizens of what they should do in the event of a nuclear attack. And not just any nuclear attack either, but the "big one." As noted by Bloomberg, the NYC Emergency Management organization, which "helps New Yorkers before, during, and after emergencies through preparedness, …
So they finally saw the need for a bit more than duck and cover?
If we are facing a Threads style attack then I - like many here - would sooner go in the first flash. If however we are talking about a limited exchange (and God forbid even that should happen), then some sound advice is worth heading.
https://www.britannica.com/technology/nuclear-weapon/Residual-radiation-and-fallout
In short, staying indoors could make a very big difference to your life expectancy.
Growing up as I did, in South Palo Alto during the Cold War, I wasn't afraid of The Bomb ... Living about 4 miles from Moffett Field, I knew that we probably wouldn't even survive long enough to register the flash ... As my Dad put it,"We won't need to worry about fallout because we'll be the fallout".
I grew up and still live a few miles from the official Ground Zero - a cafe in the center of the Pentagon courtyard.
My advice is to go outside and stand in the middle of the street to maximize your chance of instadeath. I don't want to survive the apocalypse.
I used to work for a large insurance company. We had the usual complicated backup and recovery strategy, part of which was that a monthly(?) copy of the backup tapes of all our databases was sent down to London and put in a very old, very large safe, buried deep in the basement, and said to be immune to nuclear attack.
Given that our IT centre was based near to several likely targets of Soviet nukes, one had to wonder "Why bother?"
And would we really want to pay out on a load of life assurance claims?
Oh no, you've misunderstood the reason for keeping all those policies safe. It's so that after the attack, the company can prove that in section 13b(5),of the aforementioned policy, the company does not need to pay out in the event of a nuclear explosion or related catastrophes. And thus all those people (or their surviving kin at least) can go and bugger off.
An unarmed British Trident missile was test-fired towards the coast off Africa, but instead flew towards Florida. It was put down as a malfunction but I reckon it was a warning shot to Trump in Mar-a-Lago.
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Trident missile misfire off Florida: When did British PM learn about it?
Last December mum asked me when I thought war in Ukraine would start. 2014. But when would the new invasion take place? Feb.22nd. But will it lead to nuclear war? Mum, look at us both, it would be a mercy if it did.
There is a brilliant documentary on iPlayer Storyville just now, "On the Morning You Wake Up to the End of The World". It's about how folk in Hawaii reacted when they got a false alert they were about to be nuked.
Having a wry smile at the link to Nukemap, while talking about vaporising New York, as the guy who developed it, Alex, is based out of Stevens Tech in Hoboken (Go Ducks !!, spent a great year there as an undergrad) which if the bomb drops on Manhattan, is within the fireball.
No comment on the Stevens cafeteria food being better after nuclear fallout.
Once when things were even more tense than now (something to do with them nasty folks invading poor little Afghanistan (which we would never do)) my local library had a map of the consequences should a "small" bomb explode over the town's airport. I was pleased to find that I only had a 5% risk of being severely injured in my home. That was of course because of the 95% chance of being killed instantly.
As a member of one of the more northern of the americas, allow me to report with great glee of the reckless abandon with which we drag your language kicking and screaming through the new world's filth.
Or not. I don't care.
But if you think this is bad, you should see what we do to French.
It would be very impressive if Russia managed to hit NYC with a Tsar Bomba. They'd need to strap several Samats or Satans together or rely on a lumbering subsonic bomber with the bomb bay doors cut off. I doubt they've developed something more powerful; it may be easy to scale but there's efficiency limits and diminishing returns as the yield increases.
WRT EMP, it's unlikely they're going to knock down a small electronic device, the main issue is probably that most New Yorkers don't own a radio or something simple enough to pick up transmissions without using the Internet. TVs might be an option but they'll more likely have to face a lack of power than some fried ICs.
"most New Yorkers don't own a radio or something simple enough to pick up transmissions without using the Internet"
Probably not. Sad, that.
A good thing for any techie to add to their skill-set is the ability to make a cat's whisker radio (AKA crystal radio). Hopefully you'll never have to actually use one, but useful to know JIC. See also crystal detector.
I’m not sure anyone *has* a bomb that big apart from plans in a vault. Castle Bravo needed a ship, Tsar Bomba was touch and go (and may not even have taken off if it had its IIRC uranium damper that should have doubled it’s power.
Today seems that the plan is to shotgun the joint with “little” nukes.
Little being a misnomer as 120 kt does not sound bad…. But just to visualise that using WWII 50lb / 22 kg crates of TNT, 120 000 tons of explosive with a back of the iPhone calculation, would totally cover the full surface of a standard FIFA football (soccer) pitch with crates, to hight of about 30 metres / 90 feet…
But that power is in something the size of a large oil barrel. Now go set off 2000 of my pitches above. This does somewhat scare the crap out of me, as that is a litteral crap ton of sunny booms… survivable, probably, over in 2 hours? Probably yes to that too. What would be left standing…… no idea.
I've never worked out why all the post-apocalyptic stuff involves people hanging around the cities. Me, I'm heading for the nearest marina and stealing a nice 50-foot yacht with plenty of solar panels. (Wherever you live, you can reasonably bet the owners live in a city and are now toast.) Halberg-Rassy ideally, but I'll take anything with sails. And whatever state the rest of the world is in, no-one's throwing nukes at the Azores or Canary Islands.
"Diesel lasts longer"
Ethanol is renewable and will burn in normal gasoline engines with minor jetting changes. It's also got a high octane rating, so will work nicely in Mr. Max's blown V8 motor. Methanol would be better, but it's more fiddly to make. I suspect that Ethanol and Salt will be coin of the realm in a post apocalyptic world.
Bicycles are right out ... too many wear points that need precision parts for replacement.
Last month I photographed some bicycles. One had the white splash on the back mudguard which (as well as other clues) suggested it had been in use during WW2.
You may be thinking of some shiny aerospace gadget with electric gearshifters, disc brakes, and the like.
Ordinary ones last well, have interchangeable parts, and with z wrench and cynicism can be made to grind on for a very long time.
Bicycles during WWII were rationed, one needed to justify ownership. They used components (bearings, chains & sprockets, threaded fasteners, steel, rubber) that were needed for the war effort. As a result, they were ridden into the ground ... or until the effort of riding on worn/broken sprockets, rusted out chain and square bearings was greater than walking. The few survivors from that era were probably hidden away and not used during the war. Such hoarding was a crime (unless done by the government, of course).
Also note that such bicycles were usually single speed, and made to be nothing more than a slightly faster substitute for walking. You weren't going to hop onto the bike to go visit your Gran four or five towns away.
"Use it up, wear it out, make it do or do without." —Slogan during WWII
"The terrifying thought is how nuclear weapons may have developed since the Cold War; they could be far more powerful."
Actually no. Experience has shown that nuclear weapons don't scale. A bomb with twice the yield won't do twice the damage because of the inverse square law. Building huge monstrosities like the Tsar Bomba is just a waste of plutonium, and the builders knew that full well. It was honestly little more than a publicity stunt.
The real nightmare apocalypse-tech is MIRV: Multiple Independently-targetable Re-entry Vehicles. Basically a single missile carries multiple warheads of about 5 megatons each, mounted to a "bus", a simple spacecraft with thrusters that allow it to reposition during the ballistic portion of its trajectory. It orients itself to a target and releases a warhead, re-orients, releases another warhead on a different trajectory, and so on. This basically results in a hailstorm of warheads spread over an area that will result in far more destruction than any single bomb could ever practically be expected to deliver. Basically it's a nuclear cluster bomb.
Sleep soundly!
America is in an existential crisis. If the population ever develop an awareness of that, and the subsequent futility of their existence in relation to the likelihood of a nuclear conflict, that would be bad. As in less money bad.
So, the workers are discouraged from philosophical malaise with a false hope of survival and kept in place with 'wait for instructions'.
I'll assume this message was brought to us by people who don't want be looted at the time of societal collapse.
Actually, in NYC most of the people would run towards it out of reflex.
Some wag once pointed out that you could advertise an all-out machine-gun war between 4 rival gangs would be happening at Times Square on a certain day at noon, so you'd best stay away and avoid stray bullets ... but the entire city would turn out to watch anyway.
Duck and cover, (and the UK’s later and amusing “protect and survive” videos with it’s horrible jingle from the early 80’s…), people sort of believed that nuclear war could come at any point. My generation and later sort of forgot that this could ever happen outside of North Korea flexing its muscles, the superpowers were smarter than that….
Today, that’s sort of not so much the case, but it doesn’t really affect the current TikTok generation who have not seen Threads (neither have I actually, but I have read the overview), The War Game or even Dr. Strangelove….
Oh and going off on a tangent about films, “When the wind blows”, which sort of defined “fallout” as losing your hair and protecting yourself with a couple of lean-to doors in your living room…
There are X Berths around the UK where British nuclear-armed subs go to berth. I had to explain to a young peace protestor that they weren't going there to give birth to mini-subs.
Two decades ago the Royal Navy were forced to give disaster contingency plans to the local communities. I went along to the one in Skye, Broadford bay, I arrived late but was made to feel special because the MoD plod had reserved me the one free seat in the middle of the crowd, and every RN officer made eye contact and spoke directly to me. They seriously overestimated my peace protester, anarchist abilities.
I said nothing, asked nothing, did nothing but observe, yet it was hilarious and nearly ended in a riot.
The first part of the plan was police cars would go around with loudhailers announcing instructions and distributing iodine tablets. First question: "A lot of old residents here are deaf and won't hear that, what about them?"
Second question: "You said injured people would be removed from the blast radius and evacuated to Broadford hospital, but on your map Broadford hospital is within the blast radius - did you not notice that in your planning?"
Third question: "You crashed a Trident sub into the Isle of Skye earlier this year, for the second time. Have you considered Sonar, or even a tourist map?"
If you go to the Kelvedon Hatch nuclear bunker in Essex (UK) you can see the 1950s guidance for citizens.It's about as effective as this new stuff. I have a strong suspicion that for the entire history of the problem the primary purpose has been [a] to minimise an assumed public panic and [b] to minimise the proportion of casualties needing medical attention. For example, it was then recommended that you could build a shelter in your lounge by removing the door and making a tent to hide under out of it and the back of your settee.