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    13 Jaw-Dropping Photos from Nat Geo Nature Photographer 2017 Contest

    Nat Geo Nature Photographer 2017

    Nat Geo has announced the results of it 2017 Nature Photographer of the year contest. The results are jaw dropping. 11,000 photos were submitted competing in following categories: Wildlife, Landscapes, Aerials, and Underwater.

    The grand prize for the winner is $7500. Winner in each category will receive $2500.

    Here are some of the images:

    Grand Prize Winner: Face To Face In A River In Borneo, Jayaprakash Joghee Bojan - Nat Geo Nature Photographer 2017

    National Geographic, Jayaprakash Joghee BojanA male orangutan peers from behind a tree while crossing a river in Borneo, Indonesia. Rampant palm oil cultivation threatens this critically endangered ape, forcing the normally arboreal species to resort to unusual behavior—such as wading through crocodile-infested rivers—in order to survive.

    The Lion In The Sea Of Flowers, Ge Xiao - Nat Geo Nature Photographer 2017
    National Geographic, Ge Xiao

    Early in the morning, the young male lion came to the dense flower sea, and he felt very satisfied. Swinging his head in the breeze, I took the picture.

    There Is Always Room For One More, Eivor Kuchta - Nat Geo Nature Photographer 2017
    National Geographic, Eivor Kuchta

    How many Mountain Goats can fit on this rock, if you start stacking them on top of each other? Mount Evans, Colorado, USA

    One Happy Seal Model, Lars Lykke - Nat Geo Nature Photographer 2017
    National Geographic, Lars Lykke

    Went to the very north of Denmark, skagen, at sunrise and found this willing model.

    Pied Falconet Family, Kant Liang - Nat Geo Nature Photographer 2017
    National Geographic, Kant Liang

    Pied Falconet is a species of bird of prey in the family Falconidae.

    Mother Natures Camo, Cole Frechou - Nat Geo Nature Photographer 2017
    National Geographic, Cole Frechou

    It took me a moment to see it’s not an aerial photo of a mountain covered by forests but a crocodile covered in moss.

    National Geographic, Melissa Stevens

    Ever get the feeling you’re being watched? The hair on the back of your neck starts to stand on end, you’re checking your surroundings, you look up to see the glorious mountain beast and stare into the soul of this amazing creature while he’s carefully analyzing your every move.

    Tornado, Anuar Patjane Floriuk - Nat Geo Nature Photographer 2017
    National Geographic, Anuar Patjane Floriuk

    Bigeye Trevally forming a “tornado” at Cabo Pulmo National Park, Mexico
. A few years ago, local fisherman decided to stop fishing and bet all on ecotourism. That bet was successful economically, socially, and ecologically speaking. What used to be an almost lifeless place now has a complete life chain, even bull sharks are back and orcas come and visit often.

    Sneeeze!, M. Engelmann - Nat Geo Nature Photographer 2017
    National Geographic, M. Engelmann

    Galapagos Marine Iguanas sneeze to expel excess salt water after they feed in the ocean.

    No Ordinary Bear, Andy S. - Nat Geo Nature Photographer 2017
    National Geographic, Andy S.

    When all other bears are asleep for the winter, in a remote part of the Yukon, one mother has learned that the river in her territory does not freeze and the fish keep coming into late November. covered in ice as her wet coat freezes in the -25 C air temperatures, she raises her family in the most extreme of conditions.

    People's Choice, Landscapes: Kalsoy, Wojciech Kruczyński - Nat Geo Nature Photographer 2017
    National Geographic, Wojciech Kruczyński

    Sunset illuminates a lighthouse and rainbow in the Faroe Islands.

    Best Camping Sites in Pakistan

    Second Place Winner, Wildlife: Mother's Love, Alejandro Prieto - Nat Geo Nature Photographer 2017
    National Geographic, Alejandro Prieto

    An adult Caribbean pink flamingo feeds a chick in Yucatán, Mexico. Both parents alternate feeding chicks, at first with a liquid baby food called crop milk, and then with regurgitated food.

    Winter In Transylvania #1, Calin Stan - Nat Geo Nature Photographer 2017
    National Geographic , Calin Stan
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    Solve One of These Millennium Prize Problems and Win US $1 million

    Millennium Prize Problems

    The Millennium Prize Problems are seven problems in mathematics that were stated by the Clay Mathematics Institute in 2000.

    A correct solution to any of the problems results in a US $1 million prize being awarded by the institute to the discoverer(s).

    At present, the only Millennium Prize problem to have been solved is the Poincaré conjecture, which was solved by the Russian mathematician Grigori Perelman in 2003.

    Here is an article about some interesting facts about Planet Earth

    List of Unsolved Millennium Prize Problems:

    P versus NP

    If it is easy to check that a solution to a problem is correct, is it also easy to solve the problem? This is the essence of the P vs NP question. Typical of the NP problems is that of the Hamiltonian Path Problem: given N cities to visit, how can one do this without visiting a city twice? If you give me a solution, I can easily check that it is correct. But I cannot so easily find a solution.

    Hodge Conjecture

    The answer to this conjecture determines how much of the topology of the solution set of a system of algebraic equations can be defined in terms of further algebraic equations. The Hodge conjecture is known in certain special cases, e.g., when the solution set has dimension less than four. But in dimension four it is unknown.

    Riemann Hypothesis

    The prime number theorem determines the average distribution of the primes. The Riemann hypothesis tells us about the deviation from the average. Formulated in Riemann’s 1859 paper, it asserts that all the ‘non-obvious’ zeros of the zeta function are complex numbers with real part 1/2.

    Yang–Mills Existence and Mass Gap

    Experiment and computer simulations suggest the existence of a “mass gap” in the solution to the quantum versions of the Yang-Mills equations. But no proof of this property is known.

    Navier–Stokes Existence and Smoothness

    This is the equation which governs the flow of fluids such as water and air. However, there is no proof for the most basic questions one can ask: do solutions exist, and are they unique? Why ask for a proof? Because a proof gives not only certitude, but also understanding.

    Birch and Swinnerton-Dyer Conjecture

    Supported by much experimental evidence, this conjecture relates the number of points on an elliptic curve mod p to the rank of the group of rational points. Elliptic curves, defined by cubic equations in two variables, are fundamental mathematical objects that arise in many areas: Wiles’ proof of the Fermat Conjecture, factorization of numbers into primes, and cryptography, to name three.

    Sources: WikiPedia & Claymath
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    15 Most Dangerous Neighborhoods in New York – WhatWhenWhy

    These Are The Most Dangerous States in America with Crime Statistics

    USA received 75.9 million international tourists in 2016 and this tourism activity generated $1.54 trillion and created/supported 7.6 million jobs . Although the combined activity is 2% less when compared to 2015 but these numbers are huge.

    New York alone welcomed 12.7 million international and 47.8 million domestic tourists. New York is full of surprises and there are countless attractions in the city.

    There are certain parts of New York that are very dangerous. Below is the list of most dangerous neighborhoods in New York. This list is based on the highest rates of violent crimes per capita.

    23 Things That You Should NOT Do While Visiting USA

    Vinegar hill (Brooklyn)

    Risk of burglary

    61% (lower than the national average)

    Risk of assault

    0% (lower than the national average)

    Risk of robbery

    0% (lower than the national average)

    Risk of rape

    73% (lower than the national average)

    Risk of murder

    8% (higher than the national average)

    Risk of car theft

    59% (lower than the national average)

    Downtown Brooklyn (Brooklyn)

    Risk of burglary

    69% (Lower than the national average)

    Risk of assault

    8% (Lower than the national average)

    Risk of robbery

    3% (Higher than the national average)

    Risk of rape

    68% (Lower than the national average)

    Risk of murder

    2% (Lower than the national average)

    Risk of car theft

    61% (Lower than the national average)

    Koreatown (Manhattan)

    Risk of burglary

    55% (Lower than the national average)

    Risk of assault

    89% (Higher than the national average)

    Risk of robbery

    34% (Higher than the national average)

    Risk of rape

    55% (Lower than the national average)

    Risk of murder

    48% (Lower than the national average)

    Risk of car theft

    4% (Higher than the national average)

    Port Morris (Bronx)

    Risk of burglary

    23% (Higher than the national average)

    Risk of assault

    99% (Higher than the national average)

    Risk of robbery

    66% (Higher than the national average)

    Risk of rape

    47% (Lower than the national average)

    Risk of murder

    21% (Higher than the national average)

    Risk of car theft

    17% (Higher than the national average)

    Hunts point (Bronx)

    Risk of burglary

    46% (Lower than the national average)

    Risk of assault

    0% (Higher than the national average)

    Risk of robbery

    29% (Higher than the national average)

    Risk of rape

    16% (Lower than the national average)

    Risk of murder

    1% (Higher than the national average)

    Risk of car theft

    19% (Lower than the national average)

    East new York (Brooklyn)

    Risk of burglary

    36% (Lower than the national average)

    Risk of assault

    5% (Higher than the national average)

    Risk of robbery

    64% (Higher than the national average)

    Risk of rape

    0% (Higher than the national average)

    Risk of murder

    23% (Higher than the national average)

    Risk of car theft

    2% (Higher than the national average)

    Ocean hill (Brooklyn)

    Risk of burglary

    33% (Lower than the national average)

    Risk of assault

    9% (Higher than the national average)

    Risk of robbery

    66% (Higher than the national average)

    Risk of rape

    20% (Lower than the national average)

    Risk of murder

    4% (Higher than the national average)

    Risk of car theft

    26% (Lower than the national average)

    Fort Greene (Brooklyn)

    Risk of burglary

    66% (Lower than the national average)

    Risk of assault

    27% (Lower than the national average)

    Risk of robbery

    6% (Higher than the national average)

    Risk of rape

    40% (Lower than the national average)

    Risk of murder

    13% (Lower than the national average)

    Risk of car theft

    59% (Lower than the national average)

    Brownsville (Brooklyn)

    Risk of burglary

    66% (Lower than the national average)

    Risk of assault

    38% (Lower than the national average)

    Risk of robbery

    16% (Higher than the national average)

    Risk of rape

    46% (Lower than the national average)

    Risk of murder

    3% (Higher than the national average)

    Risk of car theft

    60% (Lower than the national average)

    Bronx river (Bronx)

    Risk of burglary

    77% (Lower than the national average)

    Risk of assault

    35% (Lower than the national average)

    Risk of robbery

    49% (Higher than the national average)

    Risk of rape

    0% (Higher than the national average)

    Risk of murder

    10% (Higher than the national average)

    Risk of car theft

    32% (Lower than the national average)

    Navy hill (Brooklyn)

    Risk of burglary

    44% (Lower than the national average)

    Risk of assault

    69% (Lower than the national average)

    Risk of robbery

    94% (Higher than the national average)

    Risk of rape

    46% (Lower than the national average)

    Risk of murder

    37% (Higher than the national average)

    Risk of car theft

    86% (Lower than the national average)

    Mount Eden (Bronx)

    Risk of burglary

    2% (Higher than the national average)

    Risk of assault

    42% (Higher than the national average)

    Risk of robbery

    73% (Higher than the national average)

    Risk of rape

    18% (Lower than the national average)

    Risk of murder

    43% (Higher than the national average)

    Risk of car theft

    9% (Lower than the national average)

    Longwood (Bronx)

    Risk of burglary

    37% (Lower than the national average)

    Risk of assault

    27% (Higher than the national average)

    Risk of robbery

    53% (Higher than the national average)

    Risk of rape

    1% (Lower than the national average)

    Risk of murder

    6% (Higher than the national average)

    Risk of car theft

    13% (Lower than the national average)

    Mott haven (Bronx)

    Risk of burglary

    61% (Lower than the national average)

    Risk of assault

    13% (Lower than the national average)

    Risk of robbery

    16% (Higher than the national average)

    Risk of rape

    45% (Lower than the national average)

    Risk of murder

    8% (Higher than the national average)

    Risk of car theft

    56% (Lower than the national average)

    Fordham (Bronx)

    Risk of burglary

    86% (Lower than the national average)

    Risk of assault

    61% (Lower than the national average)

    Risk of robbery

    10% (Lower than the national average)

    Risk of rape

    42% (Lower than the national average)

    Risk of murder

    25% (Higher than the national average)

    Risk of car theft

    65% (Lower than the national average)

    These Are The Most Dangerous States in America with Crime Statistics

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    The Disadvantages of Being a Welder – WhatWhenWhy

    The disadvantages of being a welder

    Professional welders have the satisfaction of a career that lets them work with their hands and perform tasks that are essential to create machinery and other metal-containing products and structures. Welding, which involves exposing metal pieces to heat in order to fuse them, is used in many industries and activities related to manufacturing and construction. The U.S. Bureau of Labor Statistics estimates that the numbers of jobs for all welders, cutters, solderers and brazers will grow 15 percent between 2010 and 2020, which compares with the BLS estimate of a 14 percent average growth for all U.S. jobs over the same years.

    Disadvantages of Being a Welder

    • Welding Injuries

    Since they work with high heat and large pieces of metal, welders sustain a higher rate of injury than many other professions. The Occupational Health and Safety Administration puts special emphasis on eye safety, noting that as of 2007, eye injuries were responsible for about 25 percent of all welding injuries. Welders also need to protect themselves from UV rays, burns and falling objects, and must be careful not to slip and fall when welding from a height. All welders wear protective gear and learn safety procedures intended to minimize these dangers. These precautions are needed whether the welder does electric arc welding or oxygen-acetylene welding.

    The disadvantages of being a welder

    You may like this: Underwater Welders can make up to $300,000 a year

    • Work Schedule

    Though the specifics vary by company, welders can expect to take on shifts that include nights and weekends. Because welders often work for manufacturing firms that need continuous production, they may take on shifts ranging from eight to 12 hours in length. Due to the demands of the industry schedule, overtime is possible.

    • Work Environment

    No matter the place of employment or what type of welding is called for, working as a welder is anything but a desk job. Welders might need to work outside, even in bad weather. Those working inside will likely be in an enclosed space, and proper ventilation is necessary to prevent workers from inhaling particles, gases and other dangerous materials. Some tasks require welders to work from scaffolds or other structures high off the ground. Workers who do boiler repair must crawl inside tight, confined chambers.

    • Physically Demanding

    Even though welding can involve working in one spot for long lengths of time, it can be quite physically demanding. Welders need to maintain a high attention to detail while standing or performing repetitive motions, making the job more strenuous than it may initially seem. They also need to lift large pieces of metal and other equipment and reach or stoop in uncomfortable positions in order to complete welding tasks.

    A Complete Guide: How to become an underwater welder? 

    This article was originally published here
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    Best Bungee Jump Sites in the World – Face your Fear of Height

    Best Bungee Jump sites in the world

    Best Bungee Jump Sites in the World

    Bungee jumping is an activity that involves jumping from a tall structure while connected to a large elastic cord. The tall structure is usually a fixed object, such as a building, bridge or crane. The thrill comes from the free-falling and the rebound. When the person jumps, the cord stretches and the jumper flies upwards again as the cord recoils, and continues to oscillate up and down until all the kinetic energy is dissipated.

    Following list includes the highest bungee jumping is the world.

    You may want to read: Thing you should NOT do while traveling to USA

    233 meters: Macau Tower, Macau, China

    Jump Location: From a tower

    Cost: $438 Standard Jump

    Book here: https://www.ajhackett.com/macau/book-now/

    Macau Tower Bungee Jump 233 meters - 450 USD

    220 meters: Verzasca Dam, Ticino, Switzerland

    Jump Location: Dam site

    Cost: $198 (Standard Jump)

    Book here: https://booking.trekking.ch/index.php/en/

    Bungee Jump in Verzasca Dam, Ticino, Switzerland 220 meters - 198 USD

    216 meters: Bloukrans Bridge, Western Cape, South Africa

    Jump Location: From Bridge

    Cost: $70 (Standard Jump)

    Book here: https://www.faceadrenalin.com/store/bloukrans-bungy/

    Bungee jump in Bloukrans Bridge, Western Cape, South Africa 216 meters - 70 USD

    206 meters: Rio Grande Bridge, Taos, New Mexico

    Jump Location: From Bridge

    Cost: $350 Standard Jump

    Book here: No online booking option

    Bungee jump in Rio Grande Bridge, Taos, New Mexico 206 meters - 350 USD

    192 meters: Europabrücke Bridge, Innsbruck, Austria

    Jump Location: From Bridge

    Cost: $187 (Standard Jump)

    Book here: https://www.europabruecke.at/en/product/192m-europabridge#booking

    Bungee Jump in Europabrücke Bridge, Innsbruck, Austria 192 meters - 187 USD

    190 meters: Niouc Bridge, Val d’Anniviers, Switzerland

    Jump Location: From Bridge

    Cost: $212 (Standard Jump)

    Book here: https://bungyniouc.vouchercart.com/2153/bungy-jumping-voucher

    Bungee Jump in Niouc Bridge, Val d'Anniviers, Switzerland 190 meters - 212 USD

    175 meters: Altopiano di Asiago, Vicenza, Italy

    Jump Location: From Bridge

    Cost: $118 (Standard Jump)

    Book here: https://www.bungy.it/contact/

    Bungee jump in Altopiano di Asiago, Vicenza, Italy 175 meters

    A list of the least visited countries in the World

    169 meters: Kolnbrein Dam (Kölnbreinsperre), Carinthia, Austria

    Jump Location: Crane (Dam site)

    Cost: $175 (Standard Jump)

    Book here: https://www.europabruecke.at/en/product/165m-koelbrein#booking

    160 meters: The Last Resort, Bhote Kosi River, Nepal

    Jump Location: From Bridge

    Cost: $85 (Standard Jump)

    Book here: https://www.thelastresort.com.np/product-category/activities/bungy-jump-nepal/

    152 meters: Ponte Colossus (Veglio-Pistolesa Bridge), Biella, Italy

    Jump Location: From Bridge

    Cost: $118

    Book here: http://booking.bungee.it/

    Read this: 23 Best Camping sites in Pakistan

     

     

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    Russian Cannibal Couple were Arrested for Killing & Eating more than 30 People

    Russian cannibal couple broke the internet a few days ago making some interesting headlines, a few of them are:

    • Cannibal couple made human meat PIES and supplied them to local restaurants after luring female victims on Russian dating sites.

    • Russian cannibal couple, who ‘murdered, ate, canned’ humans, detained

    • Russian ‘cannibal couple’ suspected of killing up to 30 and posing with body parts

    • BUTCHER HOUSE – Inside the Russian ‘cannibal family’s house of horrors’ where they ‘killed and ATE 30 people lured from dating sites’

    • Russian Cannibal Couple Admits To Killing 30 People

    • Russian “cannibal couple” may have murdered dozens

    • Cannibal couple ‘admit to eating up to 30 people’ in south-east Russia

    Details:

    Man: Dmitry Baksheev, 35 years old

    Women: Natalia Baksheeva, 42 years old

    Investigators were tipped off after road workers found a phone belonging to Mr Baksheyev, which included selfies of him with a severed hand and other body parts belonging to a woman.

    And people in the city of Krasnodar may never have known about any of it if not for a cellphone lying on a city street.

    Natalia Baksheeva

    Mr Baksheyev is believed to have killed the woman and cut her up after the couple quarreled with her during a drinking session three days earlier, according to a statement by the Krasnodar investigative committee.

    The couple reportedly drugged their victims with a substance called Corvalol to subdue them before killing them. Their apartment reportedly smelt of the drug.

    Authorities say may be responsible for the deaths or disappearances of as many as 30 people.

    If all the killings are confirmed, the couple would rank among the country’s worst serial killers.

    Local police reportedly discovered eight frozen body parts and flayed skin in the couple’s home along with 19 remains of human skin and a cache of footage called “video lessons for cannibals” and images.

    Natalia Baksheeva, who is seven years older than her husband, came to live in Krasnodar from Omutinsk town in Kirov region.

    The couple has reportedly admitted to carrying out dozens of murders since 1999.

    The couple are being held in Krasnodar as cops investigate.

    Here is a video of the couple’s apartment:

    Russian Cannibal Couple's Apartment

    The couple living in this apartment could have killed and eaten as many as 30 people. Read more details here:

    Posted by Whatwhenwhy on Wednesday, September 27, 2017

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    Risks Involved in Underwater Welding – WhatWhenWhy

    Risks Involved in Underwater Welding

    A very common question that gets asked is “What are the risks involved in underwater welding?”

    This article will try to cover what are the risks involved in underwater welding and why underwater welders get paid above average.

    One of the article “Underwater welders make up to $300,000 a year” is an interesting read.

    Why marine welders get attractive wages

    Welding is a task which is unavoidable in many industries such as automobiles, mechanical, electrical, marine, civil, and many more. It is used in erections and fabrications in installations and infrastructures. The welding process in underwater welding is different from the regular one.

    If damages vessels need to be repaired, marine welding is the technology that people use for repairing the same. This is a very specialized profession in the shipping oil industry as well as in the defense operations. This is one the jobs that pay the most attractive salaries. However, the underwater welding risks involved in the job are worth the salary that people earn.

    Underwater welding risks - high salary

    Underwater welding – good payment with high risks

    Water has very little resistance against electricity. If it is left grounded then it can flow very easily through the water. All marine welders are subject facing electric shock, especially when they are involved in wet welding process.

    When welders are working on splash zones, they get to face more underwater welding risks as the waves may throw the welders off balance and result in loose grounding cables. So, proper preparations for marine welding projects are very important.

    Welders should always wear rubber gloves and suits. Completely insulated and watertight cables should be in place and if there are any exposed parts, people should insulate the areas with rubber tape, followed by scotch coat and electric tape.

    Also, welders have to use fully insulated waterproof electrodes.When it comes to underwater welding, both the structure and the welder are at high risks. Welders need to protect themselves from electrocution, so they should be insulated. The voltage of underwater welding sets should be controlled.

    Risks Involved in Underwater Welding - risk 1

    How marine welders can avoid a few underwater welding risks

    It is a known fact that pockets of hydrogen and oxygen formed by the arc can explode. Marine welding produces hydrogen and oxygen which can explode if they are combined in elevated levels. At the time of wet welding, marine welders can hear small popping sounds from oxygen and hydrogen bubbles that travel upward and collect.

    These sounds should be more than enough for the welders to take necessary steps. In order to avoid such dangerous situations, welders can look for areas that can trap gases. Also, they can try welding from the highest points to the lowest when possible. Electrodes which cross then thousand degrees Fahrenheit in an environment that is surrounded by gases might explode.

    Since, marine welders work several 100 feet under the sea, they tend to face pressure changes which can result in dangerous effects when they come up. The bends or decompression sickness happens when marine welders make their way to the surface quickly, as this is when the dissolved gases get into their bloodstream. This can result in fatigue, dull pain and itching in the areas such as lungs, ears, joints, brain, skin and spinal cord.

    How to become an underwater welder: Complete guide

    In order to stay away from such underwater welding risks, welders should avoid a few things such as consuming alcohol, becoming dehydrated, flying immediately after diving, continuous diving sessions and ascending after deep dives.It is a well-known fact that the deeper the welders go, the colder the water will be. If water gets into their skin, then their temperature will drop immediately. This in turn could result in hypothermia, respiratory problems and even death.

    Risks Involved in Underwater Welding - risk 2

    Eliminate the Risks Involved in Underwater Welding through proper precautions

    When the breathing equipment like oxygen tanks, hoses or masks malfunction, then it will be a major problem for marine welders who can’t reach the surface quickly. Since, the oxygen for welders is supplied from the surface; the umbilical may rip or twist. Such dancers will be amplified when people are involved in projects high demolition, salvaging and water current.

    Welders have to take precautions, as nitrogen can be built in their bloodstream. Apart from these, safe-arc welding measures should be taken. As there are severe underwater welding risks are involved, even an entry level marine welder gets a good salary in this profession. Under the sea welding is largely employed in the marine engineering for installing gas and oil rigs.

    Based on the procedures and equipment involved in the process, marine welding can be classified. The most common one is called as MMA or manual metal arc building and it is used for repairing activities in deep water. Hyperbaric and Cofferdam welding processes are generally carried out for marine welding operations.

    Risks Involved in Underwater Welding - risk 3

    These are used for welding offshore structures, steel pipelines, submerged parts of underwater structures and large ships. In order to avoid welding risks underwater, welders can take safety measures like emergency gas or air supply, standby decompression chambers and divers.

    For people who think that the wages they get from the job overcome the welding risks, marine welding can be an awarding career. However, some people might not be clear about which path they should take to get into the industry. They can go online and search for underwater welding jobs, salary and underwater welding risks to understand more about the job.

    Source
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    3 Of The World’s Biggest Welding Projects

    World’s Biggest Welding Projects

    During the Middle Ages, the art of blacksmithing was developed and many items of iron were produced which were welded by hammering. It was not until the 19th century that welding, as we know it today was invented.

    These are the 3 of World’s Biggest Welding Projects:

    1. The Emma MAERSK Ship

    Half a century ago, steel ships were built with rivets. Hot metal dowels were placed in the holes of two overlapping steel plates while the dowels were still malleable. The end of the dowels were then smashed flat, pinning the 2 sheets of metal together. However, rivets proved to be unreliable and difficult to maintain for larger vessels, setting a limit on how large a ship could be built.

    Welding accident kills worker / Man burns to death inside pipe after torch ignites clothes

    Today, rivets have largely been replaced by or are working in conjunction with welding. In 2006, the Maersk Line Company created the world’s largest ship by welding 24 huge metal hull blocks together. The massive floating structure spans 1,302 feet long, meaning over 3 full length football fields could be placed on its deck. If you were to take all the welding beads done in the creation of this ship and lay them out together, it’d be easily over 3 miles long. If you were counting multiple passes as separate beads, the line could actually be around 30 miles long.

    World’s Biggest Welding Projects

    2. The Trans-Alaskan Pipeline

    Spanning 800 miles, the Trans-Alaskan Pipeline is accurately described as a feat that couldn’t be done, but had to be done. With the chaos of 1973’s oil crisis, the government removed legislature banning oil drilling in the Prudhoe Bay oil field. Now the only problem was getting that oil from the very northern tip of Alaska down to the southern tip where it could be transported. An army of thousands of welders braved the freezing temperatures and dangerous terrain. Imagine waking up to -30 degree weather, totally surrounded by frozen wilderness for hundreds of miles on every side. In the end, the welders’ work held true. The Alaskan pipeline’s solid structure has successfully withstood multiple events including one of America’s worst earthquakes.

    World’s Biggest Welding Projects

    3. The Empire State Building

    With the collapse of the America economy during the great depression, thousands of welders found themselves desperately seeking work. For most of the United States, no one was daring to start construction projects during such an uncertain time. No one except New York’s top business men. With the emergence of skyscrapers, America’s elite business tycoons were locked in a staggering battle to build the world’s tallest structure. Thousands of welders and workers contributed to the construction of the empire state building. Most welders were so eager to keep their jobs, they performed their tasks at an incredibly alarming speed. The Empire State building was constructed at an average of 4.5 stories every week. Work conditions were incredibly dangerous. Welders could be seen dangling on the edge of steel beams hundreds of feet above the ground with no safety harnesses at all. Even more incredibly, these workers became so skilled at traversing the sheer heights, only 2 deaths are contributed to falling. Being finished in just 410 days, the Empire State Building stands 1,454 feet tall.

    You may also like: A Complete guide on how to become an underwater welder

    World’s Biggest Welding Projects

    Get your “WELDER” T-Shirt/Hoodie here – 10% Off

    Insane Welding Processes

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    2 Insane Welding Processes You Need to Read About

    It’s hard to imagine a world where the tri-faced king of processes didn’t reign supreme. But beyond MIG, TIG and Stick lies a fascinating realm of barely-known insane welding processes. Here are 2 you’ve probably never even heard of.

    COLD WELDINGCold Welding - Insane Welding Processes

    Not so much “cold” as “not hot,” Cold welding requires absolutely no heat. How’s that possible? Instead of using heat to bond 2 pieces together, this process tricks metal atoms into thinking they’re all part of the same piece. Here’s how the first one of these 2 insane welding processes works:

    Imagine metal pieces are made up of atoms that are obsessed with hugging. Specifically, atoms that love to hug other metal atoms. When you stick 2 pieces of metal together, their atoms desperately want to hug one another. But they can’t, because every piece of metal is covered on the outside by multiple layers of oxygen molecules and corrosion (plus dirt, grime, etc.). These layers act as barriers that prevent the metal atoms in one piece from hugging the atoms in another piece.

    Now let’s say you’re in space. Since there’s no air, there are no oxygen molecules to act as a barrier. Only layers of corrosion keep the atoms in 2 pieces of metal from hugging one another. If you remove these layers (by cleaning or wear and tear) and push the 2 pieces together, there’s nothing left to separate the one from the other. Their atoms are now free to hug it out. In fact, the atoms from one piece will hug the atoms from the other so hard; it’ll create a solid-state weld between the two without any heat or filler material.

    Originally, cold welding was more of a problem than a solution. Early satellites contained lots of metal parts. As these parts would interact with one another, their corrosive layers would rub off meaning there were no longer any barriers between their atoms. The pieces would accidentally be welded together in a permanent bond.

    Welding accident kills worker / Man burns to death inside pipe after torch ignites clothes

    Today, cold welding is largely used for nanotechnology. Because nano-fabrication is so small, creating a micro-sized welding machine is incredibly difficult. By using a vacuum to suck out all the air molecules from a container, it’s possible to actually cold weld 2 micro-sized pieces together more effectively than any traditional welding process.

    THERMITE WELDING

    Imagine instead of a welding machine, you’ve got a napalm bomb. That’s similar to how Thermite welding works. Unlike cold welding, Thermite welding is all about cranking up the heat. Today, this process is mainly used to connect the ends of railroad tracks. As railroads are being built, a gap of about 1 inch is left where one rail ends and the next one starts. A rough mold in the shape of the track is placed around this gap. A large stack that looks like a Dutch oven is placed over the mold. This is called the “crucible.” The crucible is then filled with a Thermite mixture and metal alloys. Thermite is like black powder, in that it burns super hot for a very quick period of time.

    Because the thermite weld is so hot, the ends of the rails must be preheated. Once everyone’s got their hot dogs and marshmallows out, the thermite in the crucible is ignited. The intense heat from the reaction causes the metal alloys in the crucible to melt into a molten liquid. Often times, this reaction can get as hot as 4500 degrees F. To put that in perspective, that’s twice as hot as the temperature of a lava flow.

    Once the metal alloys have been melted down by the termite reaction, the bottom of the crucible is then breached. The molten metal flows down from the crucible and into the mold. Once the metal has cooled, it’s grinned down to a smooth surface. This allows the train to seamlessly glide from one rail to the next.

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    Insane Welding Processes

    If you think this article was amazing, click here to read about 3 of the world’ biggest welding projects.

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    Worker Stabbed to Death by Robot in Welding Accident at Car Parts Factory in India

    robot killing man

    The man was reportedly stabbed by a metal arm and electrocuted.

    Worker killed by robot in welding accident

    A man has been killed by a robot at a car parts factory in India.

    The 24-year-old worker was reportedly adjusting a metal sheet being welded by the machine when he was stabbed by one of its arms.

    Ramji Lal, from Uttar Pradesh, had been working at a SKH Metals factory in Manesar for around 18 months when the accident happened on Wednesday, the Times of India reported.

    “The robot is pre-programmed to weld metal sheets it lifts,” one of his colleagues told the newspaper.

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    “One such sheet got dislodged and Lal reached from behind the machine to adjust it. This was when welding sticks attached to the pre-programmed device pierced Lal’s abdomen.”

    Some local media reports claimed Mr Lal was electrocuted during the accident and died at the scene, although his cause of death has not been confirmed.

    Police are viewing CCTV footage of the factory and interviewing dozens of workers who were there at the time as the investigation continues.

    Assistant Commissioner Rajesh Kuwar told the Indo-Asian News Service: “The company management and the contractor have been booked on charges of causing death due to negligence.”

    The Maruti Udyog Kamgar Union has demanded a full enquiry into Mr Lal’s death and increased safety measures governing work with robots.

    SKH Metals could not be reached for a comment.

    Thoughts?

    via: Independent

    Here is a guide if you want to become an underwater welder.

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    Welding accident kills worker / Man burns to death inside pipe after torch ignites clothes

    A construction worker was killed Wednesday when a welding torch apparently ignited his clothes while he was working inside a steel drainage pipe at a construction site at Highway 29 in Napa.

    The man, whose name was not released, was trapped inside the pipe and burned to death, according to the Napa Fire Department.

    The worker had entered the pipe to perform either welding or cutting with an acetylene torch. The pipe was 24 inches in diameter, and the man was about 40 feet inside the pipe when the fire broke out.

    These welders at work are real heroes.

    The man cried out in pain, and his partner, who also was not identified, attempted to go to his rescue with a fire extinguisher. However, it turned out the second man could not be of help, according to fire Capt. Scott Sedgley.

    “You can crawl in the pipe, but you can’t turn around,” Sedgley said. Realizing the situation was desperate, the trapped man’s partner backed out of the pipe and called 911.

     The Napa Fire Department was on the scene in four minutes, but it took time to figure out how to get to the man, who was trapped in the pipe under Highway 29. The firefighters rigged up three long wooden poles carried on the fire engine and attached a hook. When they pulled the man out, he was dead.

    “Any industrial accident is bad,” Sedgley said. “They happen to good people, out there trying to earn a living.”

    The steel pipe was intended as a storm drain for a new development at Atrium Parkway and South Jefferson Street.

    Friday, July 2, 2004

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    Top 10 Safest Countries To Be In If World War 3 Breaks Out

    top 10 safest countries world war 3 breaks out

    World War 3 is certainly something none of the average people around the world want to happen. But looking at current events with the U.S., Russia and China, and Putin now doing major evacuation drills of 40 million of his citizens, why not watch this video:

    You may like reading this: Most dangerous states in USA

    The list goes like this:

    Here’s the list again:

    10. Switzerland
    9. Tuvalu
    8. New Zealand.
    7. Bhutan.
    6. Chile
    5. Iceland
    4. Greenland
    3. Malta
    2. Ireland
    1. Fiji

    Which would you choose to hide?

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