Cleaning up the Great Pacific Garbage Patch

A socially active friend of mine had told me about the Great Pacific Garbage Patch a while back.  He is the type of person who is likely to latch on to out-of-the-mainstream causes, some of which require a lot of work to verify.  I only followed the story in the background of my mind for several years, not certain if there was any exaggeration in the statement of the problem.  The subject seems to have moved into the mainstream in more recent times.

We human beings do not realize the extent of the damage that we are doing to the planet just because we do not see a lot of it with our own eyes. We will also willingly deny the role that we play in the process of its destruction.

What is the Great Pacific Garbage Patch?  From Wikipedia:
“The patch is characterized by exceptionally high relative pelagic concentrations of plastic, chemical sludge, and other debris that have been trapped by the currents of the North Pacific Gyre.  Its low density (4 particles per cubic meter) prevents detection by satellite imagery, or even by casual boaters or divers in the area. It consists primarily of an increase in suspended, often microscopic, particles in the upper water column.”

How big is the Great Pacific Garbage Patch?  From Wikipedia:
“The findings from the two expeditions, show that the patch is 1.6 million square kilometers and has a concentration of 10-100 kg per square kilometers. They estimate there to be 80.000 metric tonnes in the patch, with 1.8 trillion plastic pieces, out of which 92% of the mass is to be found in objects larger than 0.5 centimeters.”

The reason for my posting of this blog was a mainstream news item that I saw on CNN regarding attempts to try to address the issue.  The project is called The Ocean Cleanup.  They think they are capable of cleaning up 50% of the Great Pacific Garbage Patch in five years.  Part of the solution is trying to figure how the best way to recycle the garbage that is captured. Hope it all works, and that we can clean up the mess that we have all made!

 

A Twisted Path to Equation-Free Prediction: Quanta Magazine – About Empirical Dynamic Modeling

Empirical dynamic modeling, Sugihara said, can reveal hidden causal relationships that lurk in the complex systems that abound in nature.

This approach for prediction throws out the equations, and uses a different kind of approach to find order in chaotic systems. The process includes the gathering of enough historical data to make more reliable predictions.  To me, it sounds similar in some ways to some of the processes that feed into the field of AI, or Artificial Intelligence.

https://www.quantamagazine.org/chaos-theory-in-ecology-predicts-future-populations-20151013/

 

The World’s Biggest Jet Engine Is About to Get a Blast of Ice|Wired

 

Image courtesy of Wired Magazine.

Developed primarily for the new Boeing 777X, this behemoth is wider than the fuselage of a 737 jet and can generate more than 10,000 pounds of thrust.

via The GE9X Jet Engine Is About to Get a Blast of Ice (For Safety’s Sake) | WIRED

How the humble S-bend made modern toilets possible – BBC News

via How the humble S-bend made modern toilets possible – BBC News

“”Gentility of speech is at an end,” thundered an editorial in London’s City Press, in 1858. “It stinks!””

“More than 170 years later, about two-thirds of the world’s people have access to what’s called “improved sanitation”, according to the World Health Organization, up from about a quarter in 1980.”

“Across various African countries, for example, it reckons inadequate sanitation lops one or two percentage points off gross domestic product (GDP), in India and Bangladesh over 6%, and in Cambodia 7%”

A Quantum Pioneer Unlocks Matter’s Hidden Secrets – Scientific American

Fascinating article!  I learned a new term from this article – Quantum Critical Point.

via A Quantum Pioneer Unlocks Matter’s Hidden Secrets – Scientific American

I followed one of the names mentioned in the article to find this short lecture on the topic.

A lingering question in my mind is about the energy consumed (be it in a cooling process, or in the application of high pressures, or in some other process) in creating these superconducting states and maintaining them for practical applications.  Seems like that would be significant regardless of the efficiencies achieved once you get there.  Is there not a trade-off involved?  I do not remember any mention of this aspect in the article or the video.