Wiring error. Label was placed partially over a terminal preventing he terminal from seating in a connector.
Alvarenga was more than 10 years older than Córdoba. Alvarenga believes he survived, in part, because of his experience in the open sea, but he also credits simple optimism and faith that God would save him.
He focused on finding food. He prayed more and sang hymns, even in the most devastating moments at sea. Alvarenga remembers numerous cargo ships passing him by, but he doesn’t know if all the ships were real or if he imagined them. “I would signal them and nothing would happen,” he said. “But I thought God will determine which boat will save me.”
In the end, it was not a boat, but land that saved Alvarenga. After 438 days of floating on endless water, he saw mountains. When he felt he was close enough, Alvarenga dove into the water, swimming toward what he would later learn was one in the string of the Marshall Islands.
“I hit the ground first. My boat hit the ground second. I felt the waves, I felt the sand, and I felt the shore. I was so happy that I fainted on the sand. I didn’t care if I died at that point. I was so relieved. I knew at that point I didn’t have to eat any more fish if I didn’t want to.” //
Alvarenga didn’t care that journalists didn’t believe his story. The University of Hawaii and a number of independent oceanographers would later say his improbable survival was entirely possible. Buoys and weather models show an ocean drift matched his 6,000-mile journey west. He’s collaborated with journalist Jonathan Franklin in a book about his remarkable survival, called “438 Days.”
MMarsh Ars Praefectus
10y
4,490
Subscriptor
p-chapman said:
Ok, if Shackleton would have known about what seemed to work in the Antarctic ice, why did Shackleton cheap out for the Endurance?
Wikipedia suggests that the fully equipped, custom-built Discovery cost 51,000 pounds.
Ignoring British inflation adjustments over the next decade or so, Endurance was bought for 11,600 pounds. (And he also spent 3,200 pounds on the Aurora, the smaller 2nd ship for the expedition group at the other side of the Antarctic continent -- this was all about an Antarctic land crossing, after all.) However, the Discovery was slightly over twice the GRT (gross registered tonnage) of the Endurance. (GRT isn't always the best metric, as for example the bulbous Fram, shorter than the Endurance, still has a larger GRT.)
So let's say that a smaller custom-built ship the size of the Endurance would have been, say 2/3rds the cost (as cost won't scale linearly). Thus something like 34k custom build cost vs. 12k for the actual Endurance. Plus some additional customization costs for the Endurance that must have been added on afterwards.
In any case, well over twice the cost to buy a custom ship for likely the biggest expense of the expedition!
(I suppose the cost ratio would have been guessed by anyone buying a depreciated used car vs. a new one...)
What about the diagonally reinforced Deutschland ship, mentioned in this article?
Shackleton was well aware of it, as he had wanted to buy it for his earlier 1907 expedition. But as wikipedia notes:
Thus at one point even 11,000 pounds, less than Endurance's cost, was too much for his finances.
So I won't write Shackleton off as being a dumbass when it came to choosing a ship. But it still bears looking into, just what the Endurance's structure was, how it compares to the Fram and Discovery and Deutschland -- and whether any useful reinforcements could have added at moderate cost within a reasonable time.
Cost was certainly a factor. If you don't have £50,000 available, but can scrounge up £11,600, then your choices are to either go in the cheaper ship or don't go at all. Men like Shackleton don't wait for the money to turn up. They do what they can with what they can get now.
Also worth noting is that the design compromises required to make a ship really good at freezing into pack ice tend to make it relatively miserable to live with at other times. It'll have a hull shape that yields a less comfortable motion in ocean waves. It'll be heavier for its length and beam, thus slower and less able to get out of the way of bad weather. It'll be crisscrossed internally by beams and braces that make it awkward to live and work aboard. A higher percentage of its total displacement will be its own structure, leaving less for people and cargo; thus, it needs to be bigger for the same usable capacity. That, in turn, makes it more expensive to maintain and operate after you've paid off the higher initial cost.
Designing Endurance to handle bumping into ice floes, but not to freeze into pack ice, was a perfectly reasonable decision for the ship's original mission. Picking it for the expedition was a justified risk, against the backdrop of all the other insane risks being taken by the very nature of the expedition. Letting it freeze into the pack ice was not planned or wanted – it was simply the only possible option left to Shackleton after all other options had been closed off by conditions that, until they happened, could only be foreseen as a vague and imprecise probability or possibility. //
atomicpowerrobot Smack-Fu Master, in training
3y
66
ramases said:
It is called the Action Fallacy. It describes our tendency to elevate leaders who appear decisive in a crisis over leaders who manage to avoid the crisis in the first place.
Martin Gutmann talks about it specifically within the context of Ernest Shackleton:
View: https://www.youtube.com/watch?v=b0Z9IpTVfUg
Click to expand...
The Action Fallacy isn't really appropriate here b/c the bar isn't "not getting stuck in the Antarctic Ice" but rather "crossing the Antarctic continent by land first". First being a critical part of that bar. It was difficult enough to secure funding for these "Exploration Age" adventures but nobody was going to fund anyone to do it second.
By the definition of the Action Fallacy, you are a better leader than Shackleton b/c you did not get a bunch of men stuck in the ice in the Antarctic by choosing the wrong ship. But you also didn't attempt to be the first person to cross the Antarctic continent by land.
Shackleton had previously nearly made it to be the first person to reach the South Pole, having to turn around and very nearly starving on his return journey, after which he lost out on that particular honor to Roald Amundsen. His "settling" for the Endurance was likely a concession made in an attempt to win honors for himself, his (volunteer) crew, and his country.
Of course you evaluate the risks, but at a certain point, for the immortal honors of doing something first, you pays your moneys and you takes your chances.
His legendary advertisement for the expedition read:
"Men wanted for hazardous journey. Low wages, bitter cold, long hours of complete darkness. Safe return doubtful. Honour and recognition in event of success."
Now that may have been real, or it may have been apocryphal, but it does accurately represent the situation that all of the men knowingly signed up for.
icosapode said:
I personally think it's important to have a clear eyed understanding of people who are often held up as heroes. A more nuanced picture that includes their faults as well as strengths doesn't diminish the things they did achieve after all.
That negates the point of having heroes though. We don't celebrate heroes for their faults. We all have faults - pointing out that they are no different is counterproductive. We celebrate them for the things they DID achieve beyond the standard works of men and women. Sniping at dead men who did great things b/c they weren't perfect is petty and driven by envy.
You don't have to idolize Shackleton's trip planning to recognize him as the type of man you want when the chips are down. As was said of him:
“For scientific discovery give me Scott; for speed and efficiency of travel give me Amundsen; but when disaster strikes and all hope is gone, get down on your knees and pray for Shackleton.”
I had been taught in school that scurvy had been conquered in 1747, when the Scottish physician James Lind proved in one of the first controlled medical experiments that citrus fruits were an effective cure for the disease. From that point on, we were told, the Royal Navy had required a daily dose of lime juice to be mixed in with sailors’ grog, and scurvy ceased to be a problem on long ocean voyages.
But here was a Royal Navy surgeon in 1911 apparently ignorant of what caused the disease, or how to cure it. Somehow a highly-trained group of scientists at the start of the 20th century knew less about scurvy than the average sea captain in Napoleonic times. Scott left a base abundantly stocked with fresh meat, fruits, apples, and lime juice, and headed out on the ice for five months with no protection against scurvy, all the while confident he was not at risk. What happened? //
One of the most striking features of the disease is the disproportion between its severity and the simplicity of the cure. Today we know that scurvy is due solely to a deficiency in vitamin C, a compound essential to metabolism that the human body must obtain from food. Scurvy is rapidly and completely cured by restoring vitamin C into the diet.
Except for the nature of vitamin C, eighteenth century physicians knew this too. But in the second half of the nineteenth century, the cure for scurvy was lost. The story of how this happened is a striking demonstration of the problem of induction, and how progress in one field of study can lead to unintended steps backward in another. //
Finally, that one of the simplest of diseases managed to utterly confound us for so long, at the cost of millions of lives, even after we had stumbled across an unequivocal cure. It makes you wonder how many incurable ailments of the modern world—depression, autism, hypertension, obesity—will turn out to have equally simple solutions, once we are able to see them in the correct light. What will we be slapping our foreheads about sixty years from now, wondering how we missed something so obvious? //
But the villain here is just good old human ignorance, that master of disguise. We tend to think that knowledge, once acquired, is something permanent. Instead, even holding on to it requires constant, careful effort.
NatGeo documentary follows a cutting-edge undersea scanning project to make a high-resolution 3D digital twin of the ship. //
In 2023, we reported on the unveiling of the first full-size 3D digital scan of the remains of the RMS Titanic—a "digital twin" that captured the wreckage in unprecedented detail. Magellan Ltd, a deep-sea mapping company, and Atlantic Productions conducted the scans over a six-week expedition. That project is the subject of the new National Geographic documentary Titanic: The Digital Resurrection, detailing several fascinating initial findings from experts' ongoing analysis of that full-size scan. //
The joint mission by Magellan and Atlantic Productions deployed two submersibles nicknamed Romeo and Juliet to map every millimeter of the wreck, including the debris field spanning some three miles. The result was a whopping 16 terabytes of data, along with over 715,000 still images and 4K video footage. That raw data was then processed to create the 3D digital twin. The resolution is so good, one can make out part of the serial number on one of the propellers.
"I've seen the wreck in person from a submersible, and I've also studied the products of multiple expeditions—everything from the original black-and-white imagery from the 1985 expedition to the most modern, high-def 3D imagery," deep ocean explorer Parks Stephenson told Ars. "This still managed to blow me away with its immense scale and detail."
US government-owned "moored passive acoustic recorder" was able to hear and record the 2023 implosion of the doomed Titan submersible—even though the recorder was 900 miles away from the dive site.
That implosion, during an attempted dive to the wreckage of the Titanic, killed five people, including Stockton Rush, the CEO of the company that built and operated the Titan.
The implosion audio was just released publicly by the US Coast Guard's Titan Marine Board of Investigation, which has been investigating the disaster in enormous detail. As part of that investigation, the Coast Guard obtained the audio from the National Oceanic and Atmospheric Administration (NOAA), part of the US Department of Commerce.
The audio isn't much to listen to—just some static followed by a staticky explosive noise that decays in swirling fashion for multiple seconds. The implosion itself, given the pressure the vehicle was under at the time, probably occurred in milliseconds, as you can learn from simulations of the event. //
Back in the 1960s, '70s, and '80s, this kind of sonic technology was deeply important to the military, which used the Sound Surveillance System (SOSUS) to track things like Soviet submarine movements. (Think of Hunt for Red October spy games here.) Using underwater beamforming and triangulation, the system could identify submarines many hundreds or even thousands of miles away. The SOSUS mission was declassified in 1991. //
"At some point, safety just is pure waste," Rush once told a journalist. Unfortunately, it can be hard to know exactly where that point is. But it is now possible to hear what it sounds like when you're on the wrong side of it—and far below the surface of the ocean.
The discovery of a ship, missing for five centuries, in a southwest African desert, filled with gold coins, is one of the most thrilling archaeological finds in recent times.
The Bom Jesus (The Good Jesus) was a Portuguese vessel that set sail from Lisbon, Portugal on Friday, March 7, 1533. Its fate was unknown until 2008 when its remains were discovered in the desert of Namibia during diamond mining operations near the coast of the African nation.
The Russian ship Ursa Major sank in the western Mediterranean Tuesday after a series of explosions just above the waterline, and the Russians are blaming "terrorism." The 16,000-ton freighter was 12 days into a 42-day voyage from St. Petersburg to Vladivostok carrying two desperately needed cargo cranes for that port, two 45-ton hatches for a Project 10510 icebreaker that was under construction when three engine room explosions rocked it. Two of the 16-man crew were reported missing and presumed dead. The ship was under US sanctions authorized by Executive Order 14024, imposed in August 2022, for activities related to Russia's invasion of Ukraine. //
Terrorism would be code for a Ukrainian attack.
In my view, the description of the incident does not match the video, so it is possible the description was manufactured out of whole cloth or based on bad information from the crew. We'll never have imagery of the alleged holes in the ship's hull. The fact that the Ukrainians haven't boasted about the operation makes me skeptical of their involvement. All that is certain is that Russia lost one of its largest freighters carrying critical cargo for operations in Vladivostok. //
Min Headroom
9 hours ago edited
I have no trouble believing that the Russians managed to sink their own ship, although if the hole(s) really are inward facing this seems unlikely.
A 19” inward facing hole above the water line might suggest some sort of drone strike, but if UKR isn’t crowing about it that seems unlikely too.
But this gets me to the thing I don’t understand: how does a hole above the water line sink a ship in very little time?
So what I’d go to is a flawed narrative, which Russians excel at, and no real information besides the ship is sunk, valuable cargo and all. //
Louise1 Min Headroom
3 hours ago
There might also be holes on the port side, which weren't visible because they were below the water line.
Finnish commandos boarded and seized an oil tanker Thursday that is believed to have temporarily disabled the Estlink-2 power line connecting Finland and Estonia. The vessel in question, the Cook Islands-registered Eagle S, was traveling from St. Petersburg to Port Said, Egypt. The Eagle S is thought to be part of Russia's "shadow fleet" that smuggles Russian crude oil to market. //
This is the fourth time power or telecom cables crossing the Baltic have been damaged by deliberate actions. In October 2023, a Chinese container ship damaged a gas pipeline and two telecom cables between Finland and Estonia by dragging an anchor across them; see Chinese Container Ship Suspected of Deliberately Damaging Estonia-Finland Gas Pipeline. In November 2024, a Chinese ship disabled a 745-mile cable linking Germany and Finland and a 135-mile cable linking Lithuania and the Swedish island of Gotland, again by dragging an anchor across them. In this case, the Danish Navy detained the ship but it doesn't appear to be in any danger of consequences: see Denmark Detains Chinese Ship Suspected in Cable Cutting Incident. Authorities from Sweden, Finland, Germany, and Denmark were finally allowed to board the vessel after a month-long standoff, but they were not allowed to investigate. They are only allowed to observe the Chinese investigation. This goes to my point yesterday as to why we must reach some sort of agreement with Denmark on Greenland because the Chinese own too much of Denmark's economy and, I believe, government to be relied upon to keep China from controlling that vital Arctic region; see Trump Trolls Canada, Denmark, and Panama for Christmas but Behind the Fun He Makes Serious Points. //
In addition to the AIS data showing Eagle S making very curious maneuvers over Estlink-2 and the absence of one of its anchors, the documentary evidence has the profile of an oil smuggler. //
The obvious collaboration of Russian-controlled and Chinese-registered vessels to damage the telecom and power grid running beneath the Baltic Sea threatens NATO and the EU. NATO must take this hybrid war being waged underwater seriously and develop equally serious strategies for combatting it. What can't be tolerated is China stepping in to block investigations and legal actions by affected countries. //
Mildred's Oldest Son
6 hours ago
As the article says, all of these undersea pipelines/cables/internet connections are well charted. The Russian/Chicom/Iranian/whoever, et al are testing the responses to cutting these important, international connections. So far, the west is on the defensive.
Alternative historical fiction is a popular genre in America, where readers explore possibilities such as Napoleon deciding not to invade Russia or a Confederate victory in the Civil War, pondering the hypothetical impact on world history. In honor of Maritime Day 2024, let's consider what would have happened if the United States had fought the Second World War without a strong Merchant Marine and the tens of thousands of courageous mariners who delivered crucial supplies, troops, and weapons across dangerous waters.
It's clear: we would have lost the war or failed to achieve a decisive victory.
During WWII, an estimated 250,000 mariners served, and nearly 10,000 gave their lives, resulting in a higher per capita casualty rate than any of the armed services. Over 700 Merchant Marine ships were sunk by enemy attacks, and hundreds of mariners were held as prisoners of war.
FDR recognized the indispensable role of the Merchant Marine, which he considered the "fourth arm of defense" on par with the navy, army, and air force.
As we observe current global instability and brutal Eurasian conflicts, who will be the visionary leader and advocate who ensures the readiness of our Merchant Marine for the challenges ahead? Its current state is far from adequate. //
The distinction between admirals, generals, and media commentators who freely opine on strategy and theory neglects or casually assumes away the hard reality of logistics. Lately, the strategists have not fared well in deterring conflicts, and the logistic shortcomings in Ukraine and the Middle East are glaring. While those deficiencies are apparent, they pale in comparison to a potential war in the Pacific.
Policymakers properly acknowledge China as the pacing threat, but so few seriously consider the critical importance of logistics and the availability of highly trained and militarily obligated maritime personnel. Decades of war in the Middle East have conditioned us to the luxury of uncontested sea and airspace. We enjoyed large support bases close to combat operations. Our fleet had uninterrupted access to intact and secure port facilities. //
The People's Liberation Army knows that sealift is key to our success. While many debate the vulnerability of our aircraft carriers, they gloss over that our combat power will be short-lived without robust sealift and persistent combat logistics in a war at sea.
Regrettably, we are no longer a true maritime nation; we are now a naval nation.
China, now a bona fide maritime nation, has made significant investments in its merchant fleet and can call on over 5,000 merchant vessels during war. The US has around 80. We must expand our commercial fleet to align with our strategic interests. That means acquiring more ships and enhancing our ability to build, maintain, and quickly repair them. Above all, we cannot prevail without a significant number of merchant marine officers who are ready and obligated to serve the nation when called upon.
In more than 20 countries, with 40 Powerships, Karpowership has with more than 6,000 MW installed capacity. With our fleet composed of Powerships, FSRUs, LNG Carriers, Support Ships we provide universal access to power for people and communities on 4 continents around the world.
"When my team and I went to South Korea, we were floored at the level of digitization and real-time monitoring of shipbuilding progress, with readily available information down to individual pieces of stock materials," Del Toro said.
"Their top executives could tell us to the day when ships would be delivered," he said. That's a stark difference from the US, which is facing problems with its shipbuilding capacity, labor availability, and resources. //
During his recent Sea Air Space speech, Del Toro further praised South Korea and commended Japan, saying both Pacific allies could build high-quality ships on time, on budget, and often at a fraction of the cost. //
Maj. Jeffrey L. Seavy, a retired US Marine Corps officer, wrote for the US Naval Institute that China had roughly 47% of the global market on shipbuilding, the most of any country, with South Korea coming in second at about 29% and Japan in third at about 17%. He said the US had "a relative insignificant capacity at 0.13%," referencing numbers from the United Nations Conference on Trade and Development.
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Bridge collapses put transportation agencies’ emergency plans to the test
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xoa
Ars Legatus Legionis
18y
11,941
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Yesterday at 3:52 PM
#161
rabidk said:
As a practicing long-span bridge engineer, this is absolutely correct. It is not feasible to economically design a bridge to directly resist vessel impact.
It comes down to energy transfer and dissipation. Based on fundamental physics, the force of the impact is a function of mass times acceleration, or rate of change of distance over time (F = MA = ML*t^2) . The longer the vessel is deaccelerated, the smaller the force.
The definition of a containership class is a function of draft and related capacity in TEU. Since the beginning of containerization in the mid-1950s, containerships undertook six general waves of changes, each representing new generations of containerships:
mMariner
Smack-Fu Master, in training
2y
4
Yesterday at 8:12 PM
#234
Lots of speculation going on about the ship's loss of power and propulsion. I'd like to provide a little bit of insight with some caveats. My experience is just shy of 20 years as an engineering officer on large cargo ships, some of that on diesel electric and most of that on large slow speed plants.
One of our AIS-receiving station operators in South Africa shares his true story of captivity and talks about his experience with MarineTraffic //
I noticed, to my surprise, that there are clearly-defined shipping lanes, and the lane heading up and down the east coast of Africa converged with the shipping lane from the Malacca Straits just offshore from my house. I realised my location is perfect to monitor shipping movements.
I’m also possibly one of the few station owners who had misfortune in their sailing experience. Back in 1990, my yacht ran aground during the hours of darkness. My family and I were captured and held hostage for 49 days by a then terrorist group, called Renamo, in Mozambique.
Apart from all the trauma of becoming embroiled in a very active civil war, the trauma of knowing we had disappeared and no one knew where we were, was profoundly disturbing. That happened in pre-GPS and fledgling-sat nav days.
Services such as AIS ensure this would not happen today, and therefore I applied to become a station owner to add to the security of all ships, but especially yachts, as they round the southern tip of Africa. //
I had to write a book to cover all the takeaways from our time of captivity but let me highlight just two:
Few emotions are more disabling than hopelessness. We had our two children, aged 5 and 8, with us, so we resolved early on that we had to do all we could to protect them from the reality of the war. We did this by assuming a nonchalant air that these weird happenings and people were all just a rather strange and exciting deviation in our holiday plans, and nothing to worry about.
This was not easy to sustain as deep feelings of guilt, hopelessness and despair often overcame us. We spent seven weeks living in a bush camp with the Renamo boy soldiers (aged 10 to ~20) before we were rescued. //
The second takeaway is related. It was frightening to witness how fragile social order can become. At that time, Mozambique was the poorest nation on Earth and a country in ruins due to unwise political policies, destabilization from neighbours resulting in the civil war, and the country becoming a theatre for the fighting of a proxy war between the east and the west. //
Our release required a cease-fire to come into place between Frelimo and Renamo. It did. I’ve since returned to Mozambique five times with a mission group from my local church. We attempted to help local communities with economic development and medical aid. These visits were emotionally exhausting for me, but I was amazed to discover how quickly the local people had placed the war behind them.
So the second takeaway is, people are extraordinarily resilient, and it’s vital for our mental and physical health to do all we can to place harmful events behind us and avoid giving or feeling blame. //
And, as a footnote, because you are probably wondering; our children grew up as happy kids and teenagers. Both are now young adults, both married and both with jobs that contribute directly to society. If asked, they would tell you they only have good memories of the time spent as hostages.
Welcome to the world of shipping containers.
These marvels of modern logistics have revolutionised global trade, making the transportation of goods over long distances easier and more efficient than ever before.
From perishable goods that need to be temperature controlled to heavy loads that require extra reinforcement, there’s a container type for every shipping need.
In this article, we explore the various types of shipping containers available on the market today and detail their key stats, like capacity, weight, dimensions and more.
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