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cansu-m · 2 months

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spinejackel · 11 months

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What are dead man walking tornadoes? :O

it’s a multi-vortex tornado. i dont remember the tribe it originates from (i think it was cherokee), but there’s a native american legend…? saying? that goes “if you see a man in a tornado, you are about to die.”

the most infamous shot of a dead man walking tornado hit jarrell, texas in 1997

it did so much damage to the town it caused the scale that tornados are measured by, the fijita scale, undergo revisions, and it made anchoring buildings in the tornado alley region pretty much mandatory. (it took the entire town off the map. only those who had taken shelter outside of the town or in underground bunkers survived.)

two more examples of dead man walking tornadoes looking like a person are a tornado from 2011 that hit cullman, alabama

and a tornado from 1975 that hit xenia, ohio

edit: it has been brought to my attention that the native american “legend” part of this post was a rumor spread by a documentary.

i have been asked to remove it, but i believe in letting my errors stand because i’m not perfect. i make mistakes

#ask #nature #tornado #sorry if this reply is late #hope the image of walking tornadoes chills you to the bone as much as they do for me #usually i find tornadoes strangely awe inspiring #what with the shear power and destruction they can cause in such a short amount of time #but walking tornadoes are another class all their own #also i made a typo in fujita scale and it’s too late to fix it now

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landsccape · 1 month

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lanndscape · 1 month

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uroko · 9 months

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A trip down memory rain ♡

#nature #rain #aesthetic #landscape #plants #maharashtra #green #aes #insp #inspiration #rainy #cozy #mine #gif #˗ˋˏ ♡ ˎˊ˗

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ink-the-artist · 7 months

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Video game I saw in a dream. It was in this low poly style like an older video game. You play as this character I think was meant to be a lamb, or maybe a weird mix of a lamb a mouse and a rabbit, (while not really looking like any of those things) and you’re running away from a wolf. Your objective is to last as long as possible before the wolf catches and eats you.

The house you’re running in is endless and bizarrely put together like most building interiors in dreams are (like the infinite toilet dream dimension on Reddit lol) the layout of the house is pretty detailed, you can stop and hide in places like closets or bins while the wolf looks for you, you can go up and down stairs and into rooms etc.

You never actually know where the wolf is or how close it is to you until it appears in your line of sight, it makes no noise and the game gives you no way of knowing where it is, and it’s pretty unpredictable it doesnt move at a consistent pace. When the wolf catches you there’s an animation showing it eating your character

#the actual animation of the wolf eating your character wasnt scary he kind of just cartoonishly swallows the character whole lol #the scary part is being pursued by him and never knowing how close he is #i remember being surprised when i first saw the game bc it was presented to me as #a fun addictive sort of game kinda like a mobile app game #and then i see it and its a horror game and the creators are just completely oblivious to it lmao #dream art #<- thats my tag for all my dream-inspired art #art #gif #photomanipulation #digital art #liminal #weirdcore #used a mix of ai photos and regular photos for this one #the ai stuff is sooooo good for recreating what a dream looks and feels like #but i didnt use it too much bc i wasnt able to get the specific photos i wanted :/#hmmmm this is vore isn’t it

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gulistan-blog · 6 months

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㋡🥀

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writing-with-sophia · 9 months

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Poison list

While it's important to approach writing with creativity and imagination, it's crucial to prioritize responsible and ethical storytelling. That being said, if you're looking for information on poisons for the purpose of writing fiction, it's essential to handle the subject matter with care and accuracy. Here is a list of some common poisons that you can use in your stories:

Hemlock: Hemlock is a highly poisonous plant that has been used as a poison in various works of literature. It can cause paralysis and respiratory failure.

Arsenic: Arsenic is a toxic element that has been historically used as a poison. It can be lethal in high doses and can cause symptoms such as vomiting, abdominal pain, and organ failure.

Cyanide: Cyanide is a fast-acting poison that affects the body's ability to use oxygen. It can cause rapid loss of consciousness and cardiac arrest.

Nightshade: Nightshade plants, such as Belladonna or Deadly Nightshade, contain toxic compounds that can cause hallucinations, respiratory distress, blurred vision, dizziness, an increased heart rate, and even death when ingested.

Ricin: Ricin is a potent poison derived from the castor bean plant. It can cause organ failure and has been used as a plot device in various fictional works.

Strychnine: Strychnine is a highly toxic alkaloid that affects the nervous system, leading to muscle spasms, convulsions, and respiratory failure.

Snake Venom: Various snake venoms can be used in fiction as deadly poisons. Different snake species have different types of venom, each with its own effects on the body.

Digitalis: Digitalis, derived from the foxglove plant, contains cardiac glycosides. It has been historically used to treat heart conditions, but in high doses, it can be toxic. Overdosing on digitalis can cause irregular heart rhythms, nausea, vomiting, and visual disturbances.

Lead: Lead poisoning, often resulting from the ingestion or inhalation of lead-based substances, has been a concern throughout history. Lead is a heavy metal that can affect the nervous system, leading to symptoms such as abdominal pain, cognitive impairment, anemia, and developmental issues, particularly in children.

Mercury: Mercury is a toxic heavy metal that has been used in various forms throughout history. Ingesting or inhaling mercury vapors can lead to mercury poisoning, causing symptoms like neurological impairment, kidney damage, respiratory issues, and gastrointestinal problems.

Aconite: Also known as Wolfsbane or Monkshood, aconite is a highly toxic plant. Its roots and leaves contain aconitine alkaloids, which can affect the heart and nervous system. Ingesting aconite can lead to symptoms like numbness, tingling, paralysis, cardiac arrhythmias, and respiratory failure.

Thallium: Thallium is a toxic heavy metal that can cause severe poisoning. It has been used as a poison due to its tastelessness and ability to mimic other substances. Thallium poisoning can lead to symptoms like hair loss, neurological issues, gastrointestinal disturbances, and damage to the kidneys and liver.

When incorporating poisons into your writing, it is essential to research and accurately portray the effects and symptoms associated with them. Additionally, be mindful of the potential impact your writing may have on readers and the importance of providing appropriate context and warnings if necessary.

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nasa · 2 months

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What We Learned from Flying a Helicopter on Mars

The Ingenuity Mars Helicopter made history – not only as the first aircraft to perform powered, controlled flight on another world – but also for exceeding expectations, pushing the limits, and setting the stage for future NASA aerial exploration of other worlds.

Built as a technology demonstration designed to perform up to five experimental test flights over 30 days, Ingenuity performed flight operations from the Martian surface for almost three years. The helicopter ended its mission on Jan. 25, 2024, after sustaining damage to its rotor blades during its 72nd flight.

So, what did we learn from this small but mighty helicopter?

We can fly rotorcraft in the thin atmosphere of other planets.

Ingenuity proved that powered, controlled flight is possible on other worlds when it took to the Martian skies for the first time on April 19, 2021.

Flying on planets like Mars is no easy feat: The Red Planet has a significantly lower gravity – one-third that of Earth’s – and an extremely thin atmosphere, with only 1% the pressure at the surface compared to our planet. This means there are relatively few air molecules with which Ingenuity’s two 4-foot-wide (1.2-meter-wide) rotor blades can interact to achieve flight.

Ingenuity performed several flights dedicated to understanding key aerodynamic effects and how they interact with the structure and control system of the helicopter, providing us with a treasure-trove of data on how aircraft fly in the Martian atmosphere.

Now, we can use this knowledge to directly improve performance and reduce risk on future planetary aerial vehicles.

Creative solutions and “ingenuity” kept the helicopter flying longer than expected.

Over an extended mission that lasted for almost 1,000 Martian days (more than 33 times longer than originally planned), Ingenuity was upgraded with the ability to autonomously choose landing sites in treacherous terrain, dealt with a dead sensor, dusted itself off after dust storms, operated from 48 different airfields, performed three emergency landings, and survived a frigid Martian winter.

Fun fact: To keep costs low, the helicopter contained many off-the-shelf-commercial parts from the smartphone industry - parts that had never been tested in deep space. Those parts also surpassed expectations, proving durable throughout Ingenuity’s extended mission, and can inform future budget-conscious hardware solutions.

There is value in adding an aerial dimension to interplanetary surface missions.

Ingenuity traveled to Mars on the belly of the Perseverance rover, which served as the communications relay for Ingenuity and, therefore, was its constant companion. The helicopter also proved itself a helpful scout to the rover.

After its initial five flights in 2021, Ingenuity transitioned to an “operations demonstration,” serving as Perseverance’s eyes in the sky as it scouted science targets, potential rover routes, and inaccessible features, while also capturing stereo images for digital elevation maps.

Airborne assets like Ingenuity unlock a new dimension of exploration on Mars that we did not yet have – providing more pixels per meter of resolution for imaging than an orbiter and exploring locations a rover cannot reach.

Tech demos can pay off big time.

Ingenuity was flown as a technology demonstration payload on the Mars 2020 mission, and was a high risk, high reward, low-cost endeavor that paid off big. The data collected by the helicopter will be analyzed for years to come and will benefit future Mars and other planetary missions.

Just as the Sojourner rover led to the MER-class (Spirit and Opportunity) rovers, and the MSL-class (Curiosity and Perseverance) rovers, the team believes Ingenuity’s success will lead to future fleets of aircraft at Mars.

In general, NASA’s Technology Demonstration Missions test and advance new technologies, and then transition those capabilities to NASA missions, industry, and other government agencies. Chosen technologies are thoroughly ground- and flight-tested in relevant operating environments — reducing risks to future flight missions, gaining operational heritage and continuing NASA’s long history as a technological leader.

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You can fall in love with robots on another planet.

Following in the tracks of beloved Martian rovers, the Ingenuity Mars Helicopter built up a worldwide fanbase. The Ingenuity team and public awaited every single flight with anticipation, awe, humor, and hope.

Check out #ThanksIngenuity on social media to see what’s been said about the helicopter’s accomplishments.