May i present to you
Diatoms
And an intruder there in the corner
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EARTH IS WATER (mostly…)
Ocean covers 71% of this planet (and we still don’t know all that’s in there)
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A visual experience of the world’s deepest oceans
A visual experience of the world’s deepest oceans byu/MrUpVoteDownvote ininterestingasfuck
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Oceanography field trip!
We saw the coolest freaking rock formations today, so much fun.
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taking an introductory oceanography class this term and, man. it’s just solidifying that this is what im passionate about. im a geology major but there’s so many different things you can do with that. and I think i may have found something worth doing
marine geology is so fucking cool
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my oceanography class’ work load is killing me, but at least it actually interests me and i get to go to the beach for a grade
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Climate change in the past: First indicators of resilience in tropical life, provided that global warming did not exceed 1.5 degrees
New geological data indicate that marine life is somewhat resilient to warming in the tropics. Chris Fokkema, earth scientist at Utrecht University, discovered that tropical algae were largely unaffected by a number of periods of global warming of up to 1.5 degrees Celsius in the distant past. These unicellar organisms form the basis of food webs and are generally very sensitive to rising…
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océanographie. illustrated by adolphe millot in larousse pour tous (1907-1910)
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DJ Khaled - Nas Album Done ft. Nas
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How do deserts form next to oceans?
When you picture a desert, you probably imagine a vast, empty landscape far from any water. 3 main factors allow deserts to form next to oceans, & it all has to do with atmospheric circulation (how the air moves vertically & horizontally) & how mountain ranges interact with air moisture. Oceans are moisture factories, but moisture becomes rain only when the air is forced to rise. Warm, sinking, stable air can sit over an ocean coastline & produce almost no precipitation at all. When this occurs, you get a hot, dry desert right beside the ocean. Examples are the Sahara (Atlantic coast), the Arabian Desert (Arabian Sea), & the Australian deserts (Indian Ocean).
Some oceans have cold currents that chill the air, such as the west coast of South America (Peru-Chile), & cold currents can’t hold much moisture. At most, they get fog but not rain, which is why some of the driest deserts on Earth are fog deserts. Examples are the Atacama Desert (Chile/Peru) & the Namib Desert (SW Africa). Other deserts are influenced by whether there’s a mountain near them. If moist air hits a mountain range, it cools and drops rain on the side hitting the mountain (windward side). The other side of the mountain (the sheltered or leeward side) has the opposite atmospheric effect. After moist air hits the mountains & then rises & cools, it has already rained out on the windward side. The now-dry air crosses the crest & sinks on the opposite side, called the leeward side. Sinking air warms, which reduces relative humidity; clouds evaporate, resulting in no rain. Examples are the Baja California Desert, the Patagonian Desert (Andes), the Gobi Desert (Himalayas), & the Great Basin Desert (Sierra Nevada).
Contrary to popular belief, Antarctica is home to the world’s largest desert. A desert is any region that receives less than 10" (250 mm) of precipitation per year. They receive about 50 mm per year coming from interior snowfall, often less than 2 inches. This makes Antarctica the driest desert, the coldest desert, the windiest desert, & the largest desert on Earth (about 5.5 million sq mi (14 million sq km)). The air is too cold and moist, the continent is ringed by winds that scour moisture away & the surrounding ocean & current isolate it from humid air masses. Six major coastal deserts offer trekking, sightseeing (including giant dunes), sunbathing, and an ocean dip. On the Red Sea coast, where desert dunes meet coral reefs, you can include snorkeling as well as trekking & sunbathing.
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“It’s not over yet.” Filmmakers deployed a robot crab into the sea. How the other crabs reacted was extraordinary
Robots, equipped with cameras and disguised as animals, were deployed in the BBC TV series Spy in the Ocean to capture surprising behaviour
https://share.google/YP3ckRLPkKyP5tZQt
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Things are seldom what they seem in this desert beneath the waves, a magical world of marine Houdinis where survival can hinge on a knack for deception.
Eugenie Clark, National Geographic
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Trecho Seis, curta-metragem documentário, direção, roteiro e montagem. 2024
Sinopse: Mawé é um pinguim-de-Magalhães que se perdeu do seu bando e foi encontrado nas praias de Pontal do Paraná. Resgatado pelo Projeto de Monitoramento de Praias, o jovem pinguim se depara com um novo ambiente: o Laboratório de Ecologia e Conservação (LEC) da UFPR. No laboratório, Mawé faz novas amizades com médicos veterinários e pesquisadores que o acompanham em todas as etapas de sua recuperação, uma rotina que inclui exames, banhos, curativos, além de muito carinho e atenção. Aos poucos, ele descobre que fazer novos amigos é também encontrar uma nova família. Superando suas diferenças, Mawé e seus companheiros pinguins formam um novo bando e, já recuperados, unem forças para retornar ao mar, despedindo-se dos cuidados dos seus amigos e da comunidade do litoral do Paraná.
Mostras e festivais selecionados:
- Mostra de Cinema do 12º Encontro de Divulgação de Ciência e Cultura da Universidade de Campinas – Campinas, SP
- Festival Internacional de Cinema MacacuCine – 17ª edição – Rio de Janeiro, RJ
- O Curta 5 – Festival Estudantil de Curtas – 14ª edição – Vitória da Conquista, BA
- Mostra de Cinema das Missões – 3ª edição – São Miguel das Missões, RS
- Planeta.doc Festival – 10ª edição – Florianópolis, SC
- Visões do Mar – Festival Internacional de Documentários de Niterói – 1ª edição – Niterói, RJ
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Toward Predicting Rogue Waves
Rogue waves were once the stuff of nautical legend. Tales of giant lone waves were considered sailors’ tall tales, until an oil rig in the North Sea was hit by a 25.6-meter wave on 1 January 1995. The wave was more than twice the height of any others around it and much steeper, too. Since then, scientists have been working to understand how and why these rogue waves form. (Image credit: C. Wou; research credit: S. Knobler et al.; via SciAm)
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Click through and scroll down for a GREAT comic about mapping the ocean’s floor by Lucy Bellwood, aka @lubellwoo https://medium.com/@lubellwoo/mappin-the-floor-81a3b0472ca4
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Benjamin Franklin in 1 Minute #shorts
The famous kite story was not actually how it went down. Standing in a lightning storm with a kite for it to be struck would have been reckless & likely fatal. He did fly a kite from a shed or a doorway, staying dry. He attached a wet hemp string, which conducted electrical charges downward, where he placed a silk ribbon near his hand, which acted as an insulator. A metal key was tied to the string that collected induced charges. His careful setup avoided the lethal current of a direct lightning strike. Franklin’s kite method was not about “getting hit”; it was about collecting charge from storm clouds to show lightning was electrical in nature. Those experiments led to one of his most important inventions: the lightning rod.
Others, like Russian physicist Georg Wilhelm Richmann (1711-1753), were not so lucky. He attempted to replicate & extend Franklin’s work, so during a thunderstorm, he connected a metal rod on the roof to an electrometer inside his lab. While taking measurements, a ball-lightning-like discharge struck the apparatus, & a blue fireball leapt from the rod to his head, killing him instantly. His clothes were scorched & his assistant was knocked unconscious but survived. This was the first recorded scientific death caused by atmospheric electricity.
Another important contribution of Franklin was his detailed map & charts of the Gulf Stream published in 1770. As Deputy Postmaster Franklin noted, mail ships from England took much longer to reach New York than merchant ships did to reach Rhode Island. Investigating with his Nantucket whaler cousin, he was informed that experienced sailors would avoid sailing directly into the strong current that Franklin named “Gulph Stream.” The Gulf Stream is a moving river of water in the ocean, & ships going against it are fighting. a strong current—just like rowing upstream. He mapped the current’s shape & path & used temperature measurements to define its boundaries, which actually were ignored at first because many believed they already knew the Atlantic & didn’t trust an American “amateur scientist.” When it was finally accepted, the finding helped captains shave weeks off voyages.
Franklin was the first person in history to analyze & chart demographic population growth scientifically. His 1751 essay, “Observations Concerning the Increase of Mankind,” became a foundation for modern population theory. He concluded that America was growing faster than any other and argued that population growth depended on food & land availability. He used demographic reasoning to argue about the inefficiency of slavery & later became an outspoken abolitionist. He argued that enslaved labor was economically inferior to free labor. Alongside these discoveries, Franklin invented bifocals, the Franklin stove, a flexible catheter, the glass armonica (a musical instrument used by Mozart & Beethoven), swim fins for hands, an odometer attached to carriages to measure distance, & a long arm used to reach books on high shelves. He was a true polymath—a person with deep knowledge & skill in many fields & topics.
Despite this, Ben had no formal scientific education at all. He also refused to patent anything, believing inventions should benefit humanity freely. That generosity & the scientific genius & restlessness behind it help explain why Benjamin Franklin was one of the most influential applied scientists & inventors of the Enlightenment.
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I’m gonna go into an oceanography rant in a second-
Thoughts on ecoblocks?
You apparently smack these bad boys on existing flat seawalls of concrete to buffer waves and provide homes to creatures that in turn reinforce it.
Not to be confused with the Netherlands tidal shell sea wall and other way more sophisticated infrastructure that combines natural and artifical solutions against flooding. (totally not jealous)
NOW! INFO DUMP!
Sea walls themselves are problematic depending on your coastal region, they starve beaches of their sand by stopping the natural erosion of coasts aka where the sand for that coasts beach/berm is from.
So unless your country has a system to circumvent the ecological damage you’re free to go if you want, if you’re not feel free to stay, and if you’re in the U.S sit down.
Note, coasts are vastly different depending on location due to multiple factors. (winds, currents, tectonic plates, passive vs active margins, location to sea level, etc.)
Most of the U.S East coast, where these are being tested, is near sea level, at sea level, or in some unfortunate cases built below sea level
Ex: New Orlands, its levees MULTIPLE system fails, Hurricane Katrina and nonexistent developmental planning resulting in what was preventable devastation
When the beaches starve fully and erode away the buffer they created is removed between the coasts and the ocean. Meaning the waves collide much harsher and far quicker into these seawalls, destroying them and in the end causing more erosion FASTER. It’s why many are against said walls.
How it effects you:
As of now the temporary solution to replenish the beach is called dredging which is why many beaches especially in California’s coastal home areas have crap sand. Because its not sand. It’s gross murky mud like sediment from the ocean shelf. Not to mention it’s a two for one deal destroying underwater wildlife and coastal wildlife.
My personal vote for the West coast is for the rich to stop building so close to the sea and to stop trying to prevent the natural system in place. It takes at least 20 years for a coast to noticeably erode by a chunk. And that number gets knocked down quick when they try to put sea walls to “protect their homes”
Either be hard headed enough to live with the natural terrain and rebuild when you’re house on stilts gets knocked out or go somewhere else. You’re not only permanently ruining the coast for other people but wildlife. And that’s what should matter most.
As for U.S East coasts go copy the Netherlands. Their last big flood happened in 1953 and since then they’ve gotten that prevention down to a science. While they’re still working on their smaller systems and do experience flooding the hits are no where near as devastating as before. Take notes they got a specific water board voting system because of how effected and effective they are.
Note that I’m talking about coastal seawalls. Islands that do not have a continental shelf barrier, such as Japan, meaning they experience much harsher waves and their constructed sea walls have a different purpose, flooding & tsunami buffers/barriers. Both types have their own issues that are being worked upon.
Anyways end of lesson. Thank you for staying!
I just wanted people’s thoughts because creating sea walls for coastal cities is just a small part of a unique problem.