#electromagnetic pulse

[lisforlover]

a new chapter of electromagnetic pulse is up and i am once again praising lore matrix for their portrayal of simon’s autism. as someone similar to him, who has lived her whole life not really knowing what my shutdowns/meltdowns mean, it is so real and raw.

my bf is also my safe space during my shutdowns, just like jack is for simon. even when he doesn’t understand why i can’t talk or move, he’s more than happy to just ride out the storm with me <3

[scienceguy22]

The smallest renewable power-generating system in the world.

I'm talking about something that is 3-7 inches long (7-18 cm) & weighs only 1-7 oz (30-200 g). This means the entire mechanical engine of the "plant" is smaller than a TV remote, a smartphone, or a glasses case. The entire system involves a prime energy source (in this case, a hamster) & a generator—in this case, a tiny direct current (DC) motor, the kind used in toys. It consists of a rotor with coils, permanent magnets, a tiny mechanical switch called a "commutator," & brushes. When you apply electricity, the rotor spins the motor, & when you spin the rotor, electricity comes out, running the generator.

A Spanish teenager known only by his YouTuber name, "Flamethrower," built a hamster-powered charger as a DIY experiment for his channel, using his brother's pet hamster & its exercise wheel as the mechanical power source. He attached a module to boost the low amount of power the hamster produces, accumulating the small bursts of power the little rodent produces to deliver more power more smoothly because a hamster does not run at constant speeds, so the generator's voltage goes up & down. At low speeds, the voltage can be only a few tenths of a volt. Once Flamethrower saw he had enough output, he connected the output to a USB port or cable that was able to charge his phone, albeit very slowly but effectively. You can't compare this to a wall charger, of course, but at least he showed proof of concept.

To break down why his experiment worked, we know hamsters enjoy running on the wheel, & his legs apply an incidental force on the wheel, making it spin. The hamster's chemical energy from food becomes mechanical rotational energy on the wheel. The exercise wheel is linked to a small generator, & as the wheel spins, it turns the generator. Inside the generator, the coil moves in a magnetic field. If you move a coil of wire in a magnetic field, electricity appears on the wire & the phone receives electrical power. That's Faraday's Law. His hamster easily runs 2-5 miles (3.2-8 km) per night, & that's with a very fit, very motivated hamster & efficient circuitry. Suppose his hamster ran 4 miles (6.4 KM) a night; that might give on the order of 0.5-1 watts of usable energy after losses. That's roughly 5-10% of a phone battery. It would take 10-50 hours of running for a full charge. Basically, a hamster would need to run a marathon's worth of nightly laps to give you a few percent of your phone battery.

Nevertheless, The Flamethrower did manage to get real charging. Beyond the cuteness, his experiment demonstrates mechanics, electromagnetism & power electronics in a way that's playful & memorable—perfect for getting young people interested in science. Watching how slowly a hamster can charge a phone gives a visceral sense of how much power our devices normally consume & how much infrastructure sits behind even a simple wall outlet.

[lifewithaview]

David Tennant and Kylie Minogue in Doctor Who (2005) Voyage of the Damned

S4E0

When disaster hits the Titanic, the Doctor uncovers a threat to the whole human race. Battling alongside aliens, saboteurs, robot Angels and a new friend called Astrid, can he stop the Christmas inferno?

*On the second day of shooting, David Tennant learned that his mother, Helen McDonald, was on the verge of losing her five-year battle with cancer. Tennant immediately left Upper Boat to be present during his mother's final moments. The led to the shooting schedule being re-arranged to focus on scenes that didn't feature the Doctor and visual effects work. The production was then suspended until Tennant was able to return, a stressful situation given Kylie Minogue's short window of availability.

*Broadcast 95 years after the historic 1912 disaster (April 16 2008) which the passenger liner Titanic was struck by a iceberg and sunk, which 1,503 people died.

[courseyoulovemeyoudontknowme]

The Matrix (1999, Andy and Larry Wachowski)

07/11/2024

[acommonloon]

to bicycles and a shopping cart on our way from the EMP

Was unhappily reminded of our reliance on electronics and the vulnerability of our power grid, twice this week. The first was easy to repress as I've been aware of this "one more thing" for years, and starting yet another post-apocalyptic series on my kindle was...a familiar reminder. It was the second thing I'm still thinking about.

When my phone suddenly stopped receiving a signal, I didn't think of the scenario where the North Koreans sneak a few old Russian Ilyushin jet bombers, into the US commercial traffic pattern squawking Chinese commercial airliner codes, then climbing them high and setting off nuclear bombs to create electromagnetic pulses devastating our nation's power grid.

Nope, I didn't think that because I'm not living in a constant state of terror that at any moment the world or just my world (same thing) is about to come crashing down. Yeah living in a state of denial isn't the constant address of only Trumper's. We all fend off the vagaries of life with barricades made of hope, faith, repression, nihilism, etc.

Personally, I cope mostly by...nevermind. Even though I've seemed to notice more of those Emergency Broadcast transmissions on the radio than usual, and even though, the world's most prominent Darth Vader seems to be going down in an insane egoists death spire and taking us with him, my first thought was...yeah Android Auto really sucks. It does.

It wasn't until I pulled into the parking lot of the supermarket and unplugged my phone from the car, that I realized, not only wasn't I not getting any cell signal, I wasn't getting an icon to represent a cell signal. When I tried to make a call or send a text I got the most disturbing message. "Phone not connect to a network. No number associated with this device. You can only make Emergency calls."

WTAF!!! In this day and age, when an emergency happens, you use your phone to call for help. Really when nearly anything happens you use your phone. When the emergency is - your phone is no longer a phone, I repeat, What the actual fuck?!

Not an emergency you say? Well here I was sitting in a primo parking spot on a beautiful Saturday afternoon, temp in the low 80's, sorry world, all ready to go in to get a long list of food items when I realized, I'd forgotten the list!!! Ikr? Yeah big time Emerg!!!

So, I shakily restarted the car and drove a white-knuckled fifteen minutes in heavy traffic to the Verizon store. I could think of three Verizon stores off hand. As a former member of an AF tactical communications unit, I've been conditioned to always know where all emergency egress routes are and the nearest White Castle and Verizon stores.

What? Some of you savvy preppers might ask, "Shouldn't I know where the gun stores are?' For when the sky is covered in contrails and the dead have begun to walk? Nah, I live in Indiana. You can't swing a dead zombie torso without hitting a gun shop. But MF if you've just finished a hard day of drinking and your stomach has begun to cry like Nancy Keriggan Why Why Why, a WK crave case is survival.

Anyway, as I walked in the Verizon store I noticed OMG, every single person was currently looking at a hand-held screen. Every customer and every Verizon team member. Most of the team members were looking at two screens, a tablet and a computer screen. Yeah, one EMP and I might as well have been trapped in an Escape Room!!! Okay, not a very good one as the whole front of the store is windows but... <whispers> the horror!

Quickly, a team leader approached me. To some extent I imagined what the energetic young man (Dean) might be seeing as he approached. A tallish, older man, not quite fit but not quite gone Homer Simpson, and okay he probably was just seeing customer number 286 and wondering if the geezer could remember his own phone number. So when he greeted me cheerily and asked for my phone number, I said.

Umh, I was just driving along and my phone stopped working and now it says there's no number assigned to it! Okay??? he replied.

I gave him my phone number and he said, the next rep will be with you as soon as possible.

When Terrence came over, about ten minutes later, I handed him my phone and raddled off my number. Okay, what can I help you with?

Terrence was great. He confirmed my query that sometimes people's numbers are in fact stolen (no missile contrails so) but he would just check out if my sim card was working properly...first. A new sim card later and my phone began to work. I assured Terrence when I chose to replace my phone, I'd let him know and I walked out into the day in full possession of a working phone, comfortably connected to the hivemind network.  A short while later, I was in the supermarket when D texted me a photo of the grocery list I'd left on the counter. <sigh> yeah, I should have got a bigger shopping cart.

[right-hand-warden]

...

[empshield]

If you have a minute, please help my company and also enter to win one of our products.

We are in the top 8 running for the “Coolest Thing made in Kansas” completion.

If you can, please enter our giveaway (every vote from the giveaway) is an extra chance to win an EMP Shield.

Also, if you can also help us by sharing the giveaway it would really be helpful

Https://www.empshield.com/giveaway

[prep4tomoro]

You're likely already familiar with the effects of an EMP on electrical components (power grid failure and so on), but what effect does an EMP actually have on people? Fortunately, humans are not very good conductors of electricity and are generally resistant to any effects of an EMP. However, if you are exposed to an EMP that is strong enough, the human body might experience some disruptions. Is It fatal? The key to EMP and damage to the body is the duration of the pulse. A quick pulse would pass right through. Making an EMP attack probability to be unlikely to happen. To cause damage would require a sustained magnetic field that is constantly increasing in magnitude, thus causing current flow for at least a few milliseconds. But then, this would no longer be a pulse. Some people claim that an EMP can short out a pacemaker, but there are no reports of actual pacemaker failure directly attributable to it. Some research suggests that strong EMP may have a substantial effect on the cognitive processes of the left hemisphere of the human brain. This research suggests that it can temporarily short-circuit the brain's logical circuitry causing temporary problems with thinking and memory. Other theoretical effects could be: Cellular mutations Nervous system damage Internal burns Brain damage Government technical threat assessments conclude that EMP passes through the human body so fast, current cannot begin flowing in your body to cause harm. So don’t be worried that EMP can harm you. Your body should be fine. Instead, focus on protecting your electrical and electronic systems. Related Resources: Build a Faraday Cage to Prevent EMP Damage to Electronics Preparing for the Next Inevitable Power Outage Do Cell Phones Cause Health Problems? [Author's Reference Link]

[11-Cs Basic Emergency Kit] [14-Point Emergency Preps Checklist] [Immediate Steps to Take When Disaster Strikes] [Learn to be More Self-Sufficient] [The Ultimate Preparation] [P4T Main Index]

This blog is partially funded by Affiliate Program Links and Private Donations. Thank you for your support.