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Hearing aids, mouth guards, dental implants, and other highly tailored structures are often products of 3D printing. These structures are typically made via vat photopolymerization—a form of 3D printing that uses patterns of light to shape and solidify a resin, one layer at a time.

The process also involves printing structural supports from the same material to hold the product in place as it’s printed. Once a product is fully formed, the supports are removed manually and typically thrown out as unusable waste.

MIT engineers have found a way to bypass this last finishing step, in a way that could significantly speed up the 3D-printing process. They developed a resin that turns into two different kinds of solids, depending on the type of light that shines on it: Ultraviolet light cures the resin into an highly resilient solid, while visible light turns the same resin into a solid that is easily dissolvable in certain solvents.

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Imagine getting a tattoo… that can track your health, location, or identity — and you don’t even need a device. Sounds like sci-fi? It’s real. Scientists have developed futuristic electronic tattoos that use special ink to monitor your body in real-time — from heart rate to hydration — and even transmit data without chips or batteries. But here’s the catch… could this breakthrough be the future of medicine? Or is it a step too close to surveillance under your skin?

Let’s explore how these tattoos work, what they can really do, and the wild implications they might have for your health — and your privacy.

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Credit:
ScienceVio / YouTube.
Seeker / YouTube.
CUHK Engineering / YouTube.
NewsNation / YouTube.

Animation is created by Bright Side.

Music from TheSoul Sound: https://thesoul-sound.com/

Continue reading “They Created Tattoos That Track You Without a Device” | >

High quality 4K Download: https://melodysheep.gumroad.com/l/udffp // Soundtrack: https://melodysheep.bandcamp.com/album/engineering-earth-original-soundtrack // Mankind has become the pilot of spaceship earth, whether we like it or not. Half of all habitable land on earth is now dedicated to supporting human activity. And as of the year 2020, the mass of all man-made materials now outweighs the mass of all life forms on earth.

Despite all this, we are still newcomers – untrained pilots steering an ancient, ever-changing planet. If we want to survive long-term and continue to grow, we will have to make bigger technological leaps than ever before.

This film explores the wildest, most ambitious, most dangerous ideas to keep Earth and humanity thriving, by protecting each of its layers – from the lithosphere to the stratosphere.

Many of our ideas may never materialize, but by dreaming them up, we can open our minds to the full potential of human willpower and intellect. The future is ours to build.
—
Thanks for watching everybody.

Music, Visuals, Sound & Story by Melodysheep (John D. Boswell)
melodysheep.com.
instagram: @melodysheep_
twitter: @musicalscience.

Narrated by Will Crowley.

Continue reading “ENGINEERING EARTH: Sci-Fi Solutions to Earth’s Problems — 4K Full Documentary” | >

Did Chinese researchers at the University of Michigan try to smuggle a biological weapon into the United States? CBN’s Raj Nair is joined by Sean Durns, a Washington DC based foreign affairs analyst, who has written extensively on China.

CBN News. Because Truth Matters™

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The Big Bang is often described as the explosive birth of the universe – a singular moment when space, time and matter sprang into existence. But what if this was not the beginning at all? What if our universe emerged from something else – something more familiar and radical at the same time?

In a new paper, published in Physical Review D, my colleagues and I propose a striking alternative. Our calculations suggest the Big Bang was not the start of everything, but rather the outcome of a gravitational crunch or collapse that formed a very massive black hole – followed by a bounce inside it.

This idea, which we call the black hole universe, offers a radically different view of cosmic origins, yet it is grounded entirely in known physics and observations.

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Scientists in Germany have achieved a world first by moving individual atoms from one position to a precisely defined final one using magnetism, unlocking the potential for controlled atomic motion in nanotechnology and data storage.

The research team from the University of Kiel (CAU) and the University of Hamburg used a highly sensitive scanning tunneling microscope (STM) to manipulate atoms on a specially engineered magnetic surface.

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