Skip to content
Search AI Powered

Latest Stories

People Break Down The Weirdest Facts They Know About Nuclear Weapons

Nuclear warfare is on many people's minds these days as the ongoing war between Russia and Ukraine continues to develop. Tensions on the world stage have been higher than ever and plenty of analysts have posited that we're all experiencing a throwback to what it was like to live during the Cold War era.

Of course, none of us want to deal with the possibility of a nuclear strike because the use of even one bomb could trigger widespread nuclear warfare. There's a reason why the principle of mutually assured destruction (MAD) has successfully kept the possibility of nuclear war in check.

That said, it's always worth learning more about any topics–including nuclear weapons.

People shared their knowledge with us after Redditor glasas007 asked the online community,

"What is a weird fact you know about nuclear bombs?"

"54%..."

"54% of the US's deterrent nuclear weapons are on board nuclear powered submarines capable of prowling the ocean for 70 days at a time, their exact locations known only to their crews. Their mission is to remain hidden so as to assure second strike retaliatory capability."

penny_can

And they are typically commissioned with enough uranium to power them for 20 to 30 years. They can be resupplied at sea for various crew requirements if really necessary.

"Don't use conditioner..."

"Don’t use conditioner in your hair in the wake of nuclear particles. It’ll bind the radioactive material to the hair shaft."

DubiousAxolott

So you're telling me I have to face the aftermath of a nuclear detonation AND have dry hair?!

"Before the first one..."

"Before the first one was detonated, there was some concern that runaway nuclear fission reactions would continue as a result of the bomb, until the Earth's atmosphere was destroyed completely. This was found to be 'unlikely' before the first bomb was tested."

Anticyclonic_Comrade

So what you're telling me is that they just said, "F*ck it, just try it."

"The Castle Bravo test..."

"The Castle Bravo test ended up being WAY bigger than the scientists predicted. The video is on youtube and it's crazy."

Deimi_05gs

It also wrecked a lot of equipment and buildings it wasn’t supposed to! Its fallout heavily irradiated a Japanese fishing vessel, which was quite "uncomfortable" in a diplomatic sense.

"There's a website..."

"There's a website where you can superimpose a nuclear blast over various cities. Helps give perspective on the scale of the blast."

https://nuclearsecrecy.com/nukemap/

Thirty_Helens_Agree

Really puts it in perspective when you see the size of one on your hometown!

"During the Cold War, for the U.S. alone, 32 nuclear weapons were lost due to accidents, six of which were never recovered."

johndenverspilot

Nice to know they're just chilling out somewhere. So reassuring.

"That thermonuclear devices..."

"That thermonuclear devices consist of a primary fission in the 5kt range that starts fusion in the secondary by means of focusing the xray burst into heating the secondary material. The shape of the xray lens is classified and if you were a physics student and you wrote a paper describing how to do it, it instantly became classified as well."

Carorack

Damn, imagine spending so much time figuring out how to make it only for the government to classify it!

"Depending on how high..."

"Depending on how high the fallout is it can be blown around the Earth by winds affecting everybody."

Kittem85

Freaky, huh? Again, sooo reassuring.

"Fun fact..."

"Fun fact: if one can intercept a nuclear missile the odds of a nuclear explosion is extremely low."

Badjib

Unfortunately, the odds of successful interception are also rather low.

"Once the chain reaction..."

"Once the chain reaction with the uranium is initiated, neutrons bounce around inside the device triggering more atoms to release their energy. Early designs exploded before much of the nuclear material had even been triggered, leading to wasted uranium and smaller explosions."

"The most effective designs contain this chain reaction for as long as possible like a pressure cooker to maximize the size of the explosion."

KnowsHair

Another fun fact: They used beryllium around the nuclear material to reflect the neutrons back into the material. It was called a tamper.

Hopefully you've come away from this a little more knowledgable about nuclear weapons, and it's worth checking out more authoritative sources!

Have some more facts of your own to share? Feel free to tell us more in the comments below!

Want to "know" more?

Sign up for the Knowable newsletter here.

Never miss another big, odd, funny, or heartbreaking moment again.

More from Trending/best-of-reddit

Megyn Kelly
The Megyn Kelly Show/YouTube

Even Megyn Kelly Thinks Fox News Is Now 'Like Watching Russian Propaganda' Due To Fawning Venezuela Coverage

Megyn Kelly has faced serious backlash over her views on Jeffrey Epstein, but as deplorable as her comments were, even she can spot the pandering being done by one of her former employers to cater to MAGA Republican President Donald Trump and his MAGA minions.

Kelly has taken exception to Fox News' coverage of Trump's attacks on and invasion of Venezuela.

Keep ReadingShow less
Ted Cruz
Kayla Bartkowski/Getty Images

Ted Cruz Ripped After Making Alarming Comment About Greenlanders Becoming Americans

Texas Republican Senator Ted Cruz sparked outrage after claiming that becoming part of America would be the "greatest gift" for Greenland if President Donald Trump follows through and seizes the territory from Denmark.

Greenland is an autonomous territory of the Kingdom of Denmark and is, alongside the Faroe Islands, the only other autonomous territory within the Kingdom. Citizens of both Greenland and the Faroe Islands are full citizens of Denmark. As one of the Overseas Countries and Territories of the European Union, Greenland’s citizens are also recognized as EU citizens.

Keep ReadingShow less
Screenshots from @alexaaclark's TikTok video
@alexaaclark/TikTok

Dad Goes Viral For The Unexpected Christmas Gift He Bought For 'Himself'—And We're Sobbing

Christmas comes but once a year, and with how expensive and stressful the season has become, that might feel like a good thing.

But every once in a while, something magical happens, allowing us to imagine how much fun it might be for Christmas to last all year long.

Keep ReadingShow less
Actress Evangeline Lily speaks during the celebrity event at Tokyo Comic Con.
Jun Sato/WireImage via Getty Images

Evangeline Lilly Shares Devastating Health Update After Smashing Her Face On A Boulder Last Year

MCU and Lost star Evangeline Lilly is sharing a sobering update with fans nearly a year after a frightening accident left her with a traumatic brain injury.

In May 2025, Lilly fainted while at a beach in Hawaii and fell face-first into a boulder, an incident she detailed in a Substack post published on May 30. Writing candidly about the aftermath, she recalled arriving at the hospital with a severe facial wound, and doctors focused less on the visible injury than on why she had lost consciousness.

Keep ReadingShow less
Chloe Fineman
Stephanie Augello/Variety/Getty Images

'SNL' Star Chloe Fineman Has Fans Cackling With Video Of Her 'Botched' Cosmetic Procedures At Med Spa

Since 2026 has just begun, many of us are still in our "New Year, New Me!" era.

Those who are financially able to do so might take that mantra more literally and book appointments with medical spas and plastic surgeons for fillers, Botox, and other procedures.

Keep ReadingShow less