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Items tagged with: science

KAOS
4 days ago

Happy birthday, Margaret Hamilton! :)

Computer pioneer Margaret Hamilton was critical to landing astronauts on the moon for the first time on 20 July 1969 and returning them safely a few days later. The young Massachusetts Institute of Technology (MIT) computer programmer and working mother led the team that created the onboard flight software for the Apollo missions, including Apollo 11. The computer system was the most sophisticated of its day. Her rigorous approach was so successful that no software bugs were ever known to have occurred during any crewed Apollo missions. [...]
-> Interview in The Guardian

#NASA #Apollo #Apollo11 #MargaretHamilton #women #space #science

Happy birthday, Margaret Hamilton! :)

Computer pioneer Margaret Hamilton was critical to landing astronauts on the moon for the first time on 20 July 1969 and returning them safely a few days later. The young Massachusetts Institute of Technology (MIT) computer programmer and working mother led the team that created the onboard flight software for the Apollo missions, including Apollo 11. The computer system was the most sophisticated of its day. Her rigorous approach was so successful that no software bugs were ever known to have occurred during any crewed Apollo missions. [...]
-> Interview in The Guardian

#NASA #Apollo #Apollo11 #MargaretHamilton #women #space #science
freebird
4 days ago
Enfouir sous terre le CO2 produit en excès

NOTE: Ce n'est que le plan C, D ou plus... pour quand la panique s'installera enfin. A ne pas confondre avec le plan A, réduire les émissions, stopper cette société de surconsommation!

#science #CO2 #climat #réchauffement
Enfouir sous terre le CO2 produit en excès

DAILY SCIENCE: Enfouir sous terre le CO2 produit en excès (Laetitia Theunis)

Alien (A23P)
5 days ago
Ultrashort-Pulse Laser Could Solve Dilemma of Nuclear Waste Disposal.... Researchers in Lithuania have developed an ultrashort-pulse laser that could eradicate nuclear waste and decrease the decay period from tens of thousands of years to seconds, hours, or months, depending on the material, they said.
#Ultrashort Pulse #Laser #Nuclear #Waste #Disposal #Lithuania #PHYSICS #TECHNOLOGY #SCIENCE #OPTICS
Dhan Hurley
5 days ago
Ultrashort-Pulse Laser Could Solve Dilemma of Nuclear Waste Disposal.... Researchers in Lithuania have developed an ultrashort-pulse laser that could eradicate nuclear waste and decrease the decay period from tens of thousands of years to seconds, hours, or months, depending on the material, they said.
#Ultrashort Pulse #Laser #Nuclear #Waste #Disposal #Lithuania #PHYSICS #TECHNOLOGY #SCIENCE #OPTICS
Ted
2 weeks ago

Insights from studying Nature


Image/photo
In 1991, a project called the Biosphere 2 began in Oracle, Arizona in an effort to make a completely self contained environmental ecosystem. This meant no outside air, soil, or inputs of any kind. Everything within the dome was intended to be recycled creating a continuous symbiotic loop among the plants, bacteria, animals and air. The project aimed to achieve new insights into the nature of different ecologies as well as to act as a primitive template for potential biodomes in space and beyond.

As the project progressed, the researchers involved began to notice a peculiar anomaly occurring with the growth rate of trees within the biosphere. Compared to their natural brethren, the trees within the dome were growing at a much faster pace. Even more strangely, these seemingly healthy trees began to inexplicably fall over. While this initially baffled the researchers involved, further observation uncovered a fascinating culprit behind this puzzling behavior.

In the natural world, and even in ventilated man made buildings and greenhouses, various degrees of wind constantly create a stress on trees and plants. Because the Biosphere was so stringently contained, there was essentially no moving air whatsoever within the isolated areas. This lack of wind prevented the trees from receiving the natural resistance and stress typical in their uninhibited outdoor environments. Without these stressors, the trees were unable to produce reaction bark, and thus unable to even bear their own weight under the most forgiving and protected of environments.
#biosphere #science #nature #trees #health #stress #wood #growth #wind

https://steemit.com/science/@upsideofstress/the-biosphere-project-reaction-bark-and-how-it-applies-to-you
Dennix
2 weeks ago
@heluecht Wenn du sie danach aufhängst darfst du das Experiment gerne hier mit meiner Wäsche reproduzieren :)
#science
Steffen K9 🐰
2 weeks ago from libranet.de
I cannot tell which tags he is following. But I checked it. My tags are much more generic like #art or #science while his tags are more specific but nothing fancy.
freebird
4 weeks ago
#climat #réchauffement #éducation #science #stupiditéhumaine
Ted
4 weeks ago

Margaret McConnell is a Black Swan Hunter

McConnell is the kind of person who gets worried when everyone else thinks the outlook is bright.
She had a “flair for darkness,” Timothy Geithner, the former Treasury secretary and Dudley’s predecessor as New York Fed chief, said in his crisis memoir “Stress Test.” That’s one reason why he chose her to be one of his closest aides.
“She would always ask the awkward question, the uncommon question,” Geithner said in an interview. “She was a famously curious person, and deeply skeptical about received wisdom.”
The challenge for the Fed is how to harness that kind of contrarianism into an institution that’s intensely focused on mission-critical daily tasks.
#NY #Federal #Reserve #skeptic #contrarian #Applied #Critical #Thinking #BlackSwan #Hunter #mistakes #monetary #policy #psychology #complex #systems #economics #banking #markets #politics #behavior #science #money
pzmyers 🦑
4 weeks ago
Today in the lab: fed all the #spiders. Now washing glassware. Lots of glassware.

We have NINE (9) egg sacs developing. It's going to be a pain feeding all the spiderlings.

I tell you, #science is glamorous.
freebird
4 weeks ago
Le mystère de l’amanite de Bweyeye est résolu

#science #environnement #biodiversité #champignon #mycologie #Rwanda #Belgique #recherche
Le mystère de l’amanite de Bweyeye est résolu

DAILY SCIENCE: Le mystère de l’amanite de Bweyeye est résolu (Christian Du Brulle)

Brian Ó 🐟
1 month ago
PBS Space Time seems to have gotten back to doing videos you don't need a physics degree to follow, like it was 2+ years ago. This is a trend I support.

https://youtube.com/watch?v=K8gV05nS7mc

#pbs #spacetime #physics #cosmology #science #bigbang

YouTube: Did Time Start at the Big Bang? (PBS Space Time)

neville park
1 month ago
it's heeeeeeeere: the latest #arachnews! https://medium.com/arachnofiles/arachnewsjune2019-eff786d2bb9c

a month's worth of arachnid photography, articles, scientific research and discoveries. 🕷️ 🦂

#science #biology #entomology 🐘
freebird
2 months ago
#climate #Shell #lobby #science #PieterKalmu
freebird
2 months ago
#science #KISS #forêt #reboisement #politique #climat #réchauffement #vie #biodiversité
Brian Ó 🐟
2 months ago
I first heard of thorium reactors on the show Okkupert, but I assumed it was science fiction. Maybe not.

https://youtube.com/watch?v=ElulEJruhRQ

#nuclear #nuclearpower #fission #thorium #spacetime #pbs #science
freebird
2 months ago
#psychologie #honnêteté #science #statistiques #culture #éducation
freebird
2 months ago
#Groenland #réchauffement #climat #environnement #science
Alien (A23P)
2 months ago
Image/photo

1. Where's my Gundam Mecha?


if alien reichs have vrily been playing with saucers since least the 40s, EXPECT & DEMAND MOAR!!!!!

#Science #Alien #Vril #FlyingSaucer #GottaDoBetterThanThat #Technology #DemandMoar #Gundam #Hoverboard #OllieCthulu #ArtHarder
Ted
2 months ago

Time for a reality check ...if you dare


#human #extinction #climate #change #philosophy #science #belief #denial
Alien (A23P)
2 months ago
Image/photo

NAVAJO DICTIONARY

Navajo Code Talkers

World War II Fact Sheet


Guadalcanal, Tarawa, Peleliu, Iwo Jima: the Navajo code talkers took part in every assault the U.S. Marines conducted in the Pacific from 1942 to 1945. They served in all six Marine divisions, Marine Raider battalions and Marine parachute units, transmitting messages by telephone and radio in their native language a code that the Japanese never broke.

The idea to use Navajo for secure communications came from Philip Johnston, the son of a missionary to the Navajos and one of the few non-Navajos who spoke their language fluently. Johnston, reared on the Navajo reservation, was a World War I veteran who knew of the military's search for a code that would withstand all attempts to decipher it. He also knew that Native American languages notably Choctaw had been used in World War I to encode messages.

Johnston believed Navajo answered the military requirement for an undecipherable code because Navajo is an unwritten language of extreme complexity. Its syntax and tonal qualities, not to mention dialects, make it unintelligible to anyone without extensive exposure and training. It has no alphabet or symbols, and is spoken only on the Navajo lands of the American Southwest. One estimate indicates that less than 30 non-Navajos, none of them Japanese, could understand the language at the outbreak of World War II.

Early in 1942, Johnston met with Major General Clayton B. Vogel, the commanding general of Amphibious Corps, Pacific Fleet, and his staff to convince them of the Navajo language's value as code. Johnston staged tests under simulated combat conditions, demonstrating that Navajos could encode, transmit, and decode a three-line English message in 20 seconds. Machines of the time required 30 minutes to perform the same job. Convinced, Vogel recommended to the Commandant of the Marine Corps that the Marines recruit 200 Navajos.

In May 1942, the first 29 Navajo recruits attended boot camp. Then, at Camp Pendleton, Oceanside, California, this first group created the Navajo code. They developed a dictionary and numerous words for military terms. The dictionary and all code words had to be memorized during training.

Once a Navajo code talker completed his training, he was sent to a Marine unit deployed in the Pacific theater. The code talkers' primary job was to talk, transmitting information on tactics and troop movements, orders and other vital battlefield communications over telephones and radios. They also acted as messengers, and performed general Marine duties.

Praise for their skill, speed and accuracy accrued throughout the war. At Iwo Jima, Major Howard Connor, 5th Marine Division signal officer, declared, "Were it not for the Navajos, the Marines would never have taken Iwo Jima." Connor had six Navajo code talkers working around the clock during the first two days of the battle. Those six sent and received over 800 messages, all without error.

The Japanese, who were skilled code breakers, remained baffled by the Navajo language. The Japanese chief of intelligence, Lieutenant General Seizo Arisue, said that while they were able to decipher the codes used by the U.S. Army and Army Air Corps, they never cracked the code used by the Marines. The Navajo code talkers even stymied a Navajo soldier taken prisoner at Bataan. (About 20 Navajos served in the U.S. Army in the Philippines.) The Navajo soldier, forced to listen to the jumbled words of talker transmissions, said to a code talker after the war, "I never figured out what you guys who got me into all that trouble were saying."

In 1942, there were about 50,000 Navajo tribe members. As of 1945, about 540 Navajos served as Marines. From 375 to 420 of those trained as code talkers; the rest served in other capacities.

Navajo remained potentially valuable as code even after the war. For that reason, the code talkers, whose skill and courage saved both American lives and military engagements, only recently earned recognition from the Government and the public.

The Navajo Code Talker's Dictionary


When a Navajo code talker received a message, what he heard was a string of seemingly unrelated Navajo words. The code talker first had to translate each Navajo word into its English equivalent. Then he used only the first letter of the English equivalent in spelling an English word. Thus, the Navajo words "wol-la-chee" (ant), "be-la-sana" (apple) and "tse-nill" (axe) all stood for the letter "a." One way to say the word "Navy" in Navajo code would be "tsah (needle) wol-la-chee (ant) ah-keh-di- glini (victor) tsah-ah-dzoh (yucca)."

Most letters had more than one Navajo word representing them. Not all words had to be spelled out letter by letter. The developers of the original code assigned Navajo words to represent about 450 frequently used military terms that did not exist in the Navajo language. Several examples: "besh- lo" (iron fish) meant "submarine," "dah-he- tih-hi" (hummingbird) meant "fighter plane" and "debeh-li-zine" (black street) meant "squad."

Department of Defense Honors Navajo Veterans


Long unrecognized because of the continued value of their language as a security classified code, the Navajo code talkers of World War II were honored for their contributions to defense on Sept. 17, 1992, at the Pentagon, Washington, D.C.

Thirty-five code talkers, all veterans of the U.S. Marine Corps, attended the dedication of the Navajo code talker exhibit. The exhibit includes a display of photographs, equipment and the original code, along with an explanation of how the code worked.

Dedication ceremonies included speeches by the then-Deputy Secretary of Defense Donald Atwood, U.S. Senator John McCain of Arizona and Navajo President Peterson Zah. The Navajo veterans and their families traveled to the ceremony from their homes on the Navajo Reservation, which includes parts of Arizona, New Mexico and Utah.

The Navajo code talker exhibit is a regular stop on the Pentagon tour.

Prepared by the Navy & Marine Corps WWII Commemorative Committee

#Linguistics #Culture #Science #History #Military #Navy #USNavy #Navajo #NativeAmerican #Language #Symbology #Code #Codes #Cypher #Cryptology #Crypto #Occult #Magic #NoMagic #KnowMagick
KAOS
2 months ago

MIT Scientists prove adults learn language to fluency nearly as well as children


#science #language #linguistics
Emmanuel Florac
3 months ago

MIT Scientists prove adults learn language to fluency nearly as well as children


#science #language #linguistics
KAOS
2 months ago

Trump’s declaration shocked many space enthusiasts, because the moon has not traditionally been regarded as part of Mars.


https://www.theguardian.com/science/2019/jun/07/trump-moon-is-part-of-mars-tweet-nasa

#science #politics #NASA #news
Meep
2 months ago

Trump’s declaration shocked many space enthusiasts, because the moon has not traditionally been regarded as part of Mars.


https://www.theguardian.com/science/2019/jun/07/trump-moon-is-part-of-mars-tweet-nasa

#science #politics #NASA #news
Tower of High Sorcery
silverwizard
7 months ago from ZoobopDeDoDop!
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