Millions of tons of plastic waste enter the oceans each year. The sun's ultraviolet light and ocean turbulence break down these plastics into invisible nanoparticles that threaten marine ecosystems.
In a new study, engineers at the University of Notre Dame have presented clear images of nanoplastics in ocean water off the coasts of China, South Korea and the United States, and in the Gulf of Mexico. These tiny plastic particles, which originated from such consumer products as water bottles, food packaging and clothing, were found to have surprising diversity in shape and chemical composition.
The engineers' research was published in Science Advances.
"Nanoplastics are potentially more toxic than larger plastic particles," said Tengfei Luo, the Dorini Family Professor of Aerospace and Mechanical Engineering at the University of Notre Dame. "Their small size makes them better able to penetrate the tissues of living organisms."
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Ben Pentreath, Driehaus laureate
A house designed by Ben Pentreath in Moscow. (Ben Pentreath Ltd.)
I believe I first heard of architect Ben Pentreath from a video called “Three Classicists” in which he, along with George Saumarez Smith, and Francis Terry drew, in 2010, a classical scene on the walls of the Kowalski Gallery, in London. It was videotaped in stop action, or time-lapse, shrinking the time of drawing to about three…
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Morning Meditation
Luke 9:43b-45
While they were all amazed at his every deed,
Jesus said to his disciples,
"Pay attention to what I am telling you.
The Son of Man is to be handed over to men."
But they did not understand this saying;
its meaning was hidden from them
so that they should not understand it,
and they were afraid to ask him about this saying.
I feel the dread the disciples felt. The knowledge that all around me something good is happening, but examining it is too much for me right now.
There is so much beauty within reach, yet so much emptiness, too. Can I stay in my little corner of the infinite circle?
The disciples were amazed, but when Jesus tried to tell them to listen and focus, the meaning was hidden from them. Why did Christ call them to attention, while, simultaneously, the Spirit hid the meaning from them?
They saw the deeds, they could not understand the words, and they felt uncomfortable asking about it. Were they afraid in the sense of being shy around the teacher, not wanting to look stupid? Or was there more to it? Did they DREAD the implication of the words the way I immediately identified dread in my chest as I read today's scripture? Was it easier to pretend that nothing bad could change the good they were living?
It is so much easier to live with my head in the sand, to close my eyes to pain I see around me and pain I feel. Emptiness, unhappiness are everywhere. It's exhausting being in this world of misery. I want to look for the amazing and keep my focus wherever I find it, but circumstances pull me back and tell me to focus. The truth I don't want to face is that faith isn't all pretty words on Sunday, Prayer Pal cards on Wednesday, and worship music with a good beat.
Having faith means holding the joy of neighbor and love of God in the same hands that reach out for help in a desperate need to be held and comforted. The joy is only partnered with the pain. The full experience of God, of Christ, of life as a disciple, as life as a human, is a model of completeness.
But, I don't want the pain. I reject completeness today. I dread following the path set before me. Rejection stings, physical pain is devastating, the way forward in ministry is not the way to fortune but to lack. Let me be incomplete, is my prayer. Let me see the beauty and avoid the misery!
Like the disciples for whom understanding was withheld only momentarily, I see now that I, too, am a disciple.
I am amazed by Christ's deeds. I see that wisdom exists but it is not yet mine. I see my imperfection that matches the imperfection of the disciples' and I recognize that Jesus called them as Jesus calls me.
Jesus called them and gave them tasks to do in their imperfection. How can I not also do as I'm called? I can be imperfect and still function.
Where am I in this art? Am I part of the diaconate? Am I the screaming demon of rejection and hate? Am I the bored and cynical saint on the edge who is tired of all my shit? Am I the imperfectly laid bricks that still function to uphold beauty and history? Am I a tiny, marred, dull crystal whose task is to shine whatever light I am able? Am I some of the crumbly mortar?
The disciples' tasks of instructing on the gospel and living a new life led to pain but also to joy. Christ's disciples were called into a complete experience, one of life with faith. Their dread did not stop them from serving as they were called to serve, and as they were sent to serve, and over time their understanding of Jesus's words became more clear. When the Son of Man was handed over to humanity's evils, there was completeness. The joy and the pain were joined hand in hand. The sacred and the human were one. Task accomplished.
La Parroquia de San Miguel de Allende, Mexico. Photo from July 2023. From the corners to the saints, we are all invited to the feast of life in Christ.
This reflection leaves Christ dwelling in the misery of humanity, not yet resurrected. We are still in the place of dread. We can hold time here if we need to. It's because of the disciples who accomplished their tasks while still imperfect and fearful that we know the rest of the story of Christ's resurrection. When we are ready, we can move to completion.
Art shop in Guanojuato, Mexico. The crosses with the imprint of Mexican culture let us know that the disciples' tasks were completed -- the gospel traveled the world even through the imperfect evils of humanity, so that all may know the Joy. We look forward to the New Creation when the evils of colonization, injustice, and greed are vanquished and Joy remains.
Tiny Buddha shares more wisdom to end our reflection and speak to our human dread. While we look forward to fully revealed wisdom and completeness, we can accept the love offered to the disciples and to ourselves by Christ and know that we were always enough.
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The time-honored Edisonian trial-and-error process of discovery is slow and labor-intensive. This hampers the development of urgently needed new technologies for clean energy and environmental sustainability, as well as for electronics and biomedical devices.
"It usually takes 10 to 20 years to discover a new material," said Yanliang Zhang, associate professor of aerospace and mechanical engineering at the University of Notre Dame.
"I thought if we could shorten that time to less than a year -- or even a few months -- it would be a game changer for the discovery and manufacturing of new materials."
Now Zhang has done just that, creating a novel 3D printing method that produces materials in ways that conventional manufacturing can't match. The new process mixes multiple aerosolized nanomaterial inks in a single printing nozzle, varying the ink mixing ratio on the fly during the printing process. This method -- called high-throughput combinatorial printing (HTCP) -- controls both the printed materials' 3D architectures and local compositions and produces materials with gradient compositions and properties at microscale spatial resolution.
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