Maritime archaeology is fun, because its a field I'm never going to get involved in.
I love watching other people poke around in sunken ships and reconstruct what happened to them.
Don't get me wrong, I love boats, but they belong on top of the water.
Boats underwater? Weird. Wrong. Somebody else please figure it out so I can read about it, because I'm never going in those things.
Another set of pics from the Dinosaur Research Center.
River basins - commonly dominated by plant life today, but very different in Earth's Precambrian when there was no plant life at the surface to anchor rivers in place. This scientist is working on how the shape of river basins and floodplains in the plantless Precambrian differ from those seen today.
The simplest kind of fault When rocks tear and break they can do so in a variety of ways, depending on whether they are being pulled apart (aka extension to geologists), pushed together (compression) or slid alongside each other (strike slip, like the San Andreas) by the tectonic forces affecting the area. This example is a normal fault from Iran, produced by pull apart forces, at least on a local level. The layers pick out very well the block of rock that has dropped between two others, and the two fault lines bordering it. The tectonics in Iran are complex, the main forces are compressive as Arabia separates from Africa and is in a slow motion collision that is closing the Persian Gulf. As the rock is pushed out of the way and uplifted to form mountains such as the Zagros range some regions are twisting and buckling in a rotatory motion, leading to local extensive forces and normal faulting. Loz Image credit: https://twitter.com/HaakonFossen
A geological introduction to the rocks of New York's Hudson River Valley.
Quartz outcropping. John Muir Wilderness, Sierra Nevada Mountains, California, USA. Photo by Van Miller
Original caption: "Almost three weeks of non-stop shooting, 150 Gb of videos & raw image files along with 50 GB of rendered video files to combine into this piece.
The time lapse was shot across North Pacific Ocean & East China Sea. The time lapse was taken over span of 20 days experiencing mesmerizing shades of Nature . *Note* The narrative of the time lapse is not linear . I purposefully reshuffled some of the shots to give it a Cinematic look."
Pipeline Inspection - Down-hole Technologies
Each time a pipeline is built, examination personnel might make use of visual, X-ray, Magnetic particle, ultrasonic and other inspection procedures to evaluate the welds and ensure that they’re of high quality. These inspections are executed when the pipeline is being created therefore gaining entry to the examination area isn’t a problem. When the pipe is hidden, it is undesirable to dig it up for any cause. Engineers have created devices known as PIGs (pipeline inspection gauges) that are sent through the buried pipe to carry out inspections as well as tidy the pipe When you are positioned close to The PIGs are carried through the tube by the flow of fluid, water or gas and can be powered intelligently using lithium battery chemistries.
The PIG’s (pipeline inspection gauge) can travel and carry out inspections over very great distances, using a tool with a camera and lights fitted in a swivelling head attached to the camera head can pan and tilt remotely In a single run, the Ultra Scan Duo Pipeline Inspection Device could collect information on the kind and dimension of pipe problems as well as prioritize those defects for checking as well as remediation activities. Pipeline inspections tend to be done while the main remains in service by including a sensor into any tap 2" (50 mm) or bigger.
PIGs use a number of non-destructive tests procedures to do the inspections. The majority of PIGs make use of a magnetic flux seapage approach but several also use ultrasound to conduct the inspections. A strong magnetic field is established within the pipe wall utilizing either magnets or simply by inserting electrical current in to the metal. Ruined areas of the pipe cannot support as much magnetic flux as undamaged areas so magnetic flux leaks out of the pipe wall in the damaged areas. An array of sensor around the circumference of the device picks up the magnet flux leakage and notes the area of damage. PIGs involving ultrasound, have a range of transducers which emits a high frequency sound pulse perpendicular to the pipe wall and gets echo signals from the interior surface and the outside surface of the pipe.
Pipeline inspection
performed at high velocity where ever possible using the most recently introduced data acquisition, recording and processing technology, which include multi-beam echo sounders, pipe trackers and video. PIG’s that are self-propelled using Pipeline battery technology don’t need to rely on the gas flow or fluid to move it along, as previous pipeline inspection methods do, and getting semiautonomous usually means its range is significantly higher than the normal tethered inspection system.
Increasing demands are being placed on battery power for undersea applications such as vehicle propulsion, operating portable equipment such as cameras or measurement devices,
and operating installed equipment such as telecom infrastructure. Factors such as longer missions and higher peak-energy demands from more sophisticated and intelligent systems call for greater energy density, improved reliability, greater safety and high resilience to the elevated pressures experienced in undersea environments. Overall, the design of the battery system must ensure high levels of reliability and safety, so as to minimise danger to personnel as well as disadvantages such as property loss, down time, mission failure, and high maintenance costs resulting from battery failures in the field. Lithium battery technology has several advantages over other types, particularly its higher energy density. However, creating a lithium-based battery system capable of delivering the optimum performance and meeting reliability and safety-acceptance criteria, at the right price, demands careful attention to aspects such as cell technology, cell balancing, charge control and production quality.
Space tourism has become a reality in the last month, with two billionaires jetting off to brush the edge of space in ground-breaking technology, but the CO2 emissions of such trips could carry a heavy price for the climate.
On 11 July, Virgin Group mogul Richard Branson took off in a rocket plane, with Amazon tycoon Jeff Bezos hot on his heels on 20 July. The two successful trips are a boost for space tourism, which is already seeing people booking tickets worth hundreds of thousands of euros to touch the stars.
Virgin Galactic aims to put on 400 trips per year in the long term and to add more spaceports around the world, a spokesperson told EURACTIV. Meanwhile, Bezos claims to have sold nearly $100 million worth of tickets for future passenger flights.
Other countries, including China and Russia, also have their eye on such trips, according to Ricardo Conde, President of the Portuguese Space Agency.
’74 trips around the Equator’
But such space odysseys could come at a heavy price for the climate.
According to analysts from S&P Global Sustainable1, a commercial space launch using conventional fuel types generates 518 tons of CO2 emissions. That is the equivalent of one car travelling 1.8 million miles by land, the equivalent of 74 trips around the equator.
That could increase to 130,000 tons of CO2 emissions, based on industry forecasts that there could be 250 launches per year by 2025.
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Dear Jeff, you weren't in space long or high enough to experience the Overview Effect, and every time you fire off one of your dick rockets you make the planet even more fragile.
Microplastics are widespread in the marine environment but are still poorly understood in Polar regions, particularly in the Antarctica. Now, an international study reveals the presence of microplastics in three penguin species from Antarctica and warns about the state of our southern ecosystems.
Now, an international study reveals the presence of microplastics across Antarctica, in three penguin species, chinstrap, gentoo and adélie penguins, and warns about the state of our southern ecosystems.
Researchers analyzed scat samples from chinstrap, gentoo and adélie penguins at breeding colonies across the Antarctic Peninsula and Scotia Sea, over seven seasons. They found microplastics are widespread across years and colonies in Antarctic Peninsula. These particles are mostly polyethylene and polyester, but also, in cellulose fibres. Results shows a similar frequency of occurrence of particles across all colonies, suggesting there is no particular point source for microplastic pollution in the Scotia Sea,
Researchers highlight the need for further assessment of microplastics in this sensitive region of the planet, the potential effects on penguins and other organisms in the Antarctic marine food web.
Photo description: Gentoo penguin colony, with nearly 40 penguins, some of them are nesting in a free-ice area near the water.
Oh, thank you for asking this totally unprompted question! Tumblr’s Post+ is our new tool that allows creators to make some of their posts exclusive to paid supporters and allows people to support their favorite creators. It’s an optional way to support and encourage your favorite creators on Tumblr, and it’s all done in the existing post form with the existing tools you all know and love.
Creators are the backbone of Tumblr—whether they’re GIF artists, illustrators, comedians, cosplayers, or just really good shitposters. Since our founding, we have always believed in empowering the world’s creators to show off their best work. Post+ now gives these same creators the ability to earn money from their work.
Right! Post+ simply gives creators the freedom to pick and choose which posts they want public and which posts they want only their paid supporters to see. Creators who use Post+ have the ability to choose how much of their content is free and public. Post+ is an optional program—the creator has the power to decide if they want to participate or not. The creator also has the ability to choose from a select set of predefined subscription pricing structures for their supporters.
When Post+ fully launches, it will be available for anyone who wants to use it. Right now it’s still in its beta phase of testing. We want to make sure that everyone’s experience with Post+ is without any hiccups or bugs. We’re working with a very limited number of creators who are testing it out for us. But! If you want to get notified when more beta testing spaces open up, please sign up here.
If you want to stay up-to-date on all things Post+, give @postplus a follow. It’s where we’re posting FAQs and answering your questions. If you want to give feedback, fill out this survey here. Thanks for your patience, Tumblr.
The communities that make up Tumblr are built by artists, writers, GIF artists, shitposters, illustrators, and other creators sharing their talents with the world. It’s a place where the world's creators can put their best work in front of an incredible audience. The tools that we built are built for creators and artists to do just that. Over the years we've watched countless careers born here, books launched, talents discovered. Tumblr connects people to their audiences and allows them to pursue their work in a greater capacity. We want that to be achievable for everyone on our platform.
Post+ is a move toward this goal—making sure creators who dedicate their time and effort to producing content have the choice to be paid for some of what they do, if they decide it makes sense for them.
Right now, we’ve got our beta testers and a world of feedback to incorporate, which is exactly how things get made and get better.
We do, however, want to address the main concerns we are hearing:
Fanfiction & Copyright Infringement
Basically, the process works the same as it always has. And yes, the following information is coming to you straight from a lawyer:
Using the block feature and Post+
We will continue to answer questions over the next few weeks over on @postplus
As always, our priority is the people who make up this weird blue universe, and we’ll keep working to make sure we’re serving you as well as we can.
Wtf is wrong with you?
I’m a crêpe. I’m a weirdough.
@netflix call me for adaptation rights
When you can’t find an emoji to fully capture your feelings:
Me: I'm sick of Higher Power! It's such a generic song and Coldplay's totally milking it at this point.
Me the second Higher Power comes on:
