Tag: science

An Attempt To Reset Science

An executive order on science slipped through last week with almost no comment from the media. Its central concern is to set science on a better path after so many years of egregious abuses in which the core principles of science have been set aside in favor of political messaging.

The title is “Restoring Gold Standard Science.” It is an ambitious attempt to reframe what science is and does, not to politicize it but exactly the opposite. Only better science with the highest standards, the order says, is capable of restoring trust.

You have surely heard that the Trump administration is waging war on science. Read this order: the opposite is true.

“Over the last 5 years, confidence that scientists act in the best interests of the public has fallen significantly. A majority of researchers in science, technology, engineering, and mathematics believe science is facing a reproducibility crisis. The falsification of data by leading researchers has led to high-profile retractions of federally funded research.”

To solve the problem, the order seeks to “restore the American people’s faith in the scientific enterprise and institutions that create and apply scientific knowledge in service of the public good. Reproducibility, rigor, and unbiased peer review must be maintained. This order restores the scientific integrity policies of my first Administration and ensures that agencies practice data transparency, acknowledge relevant scientific uncertainties, are transparent about the assumptions and likelihood of scenarios used, approach scientific findings objectively, and communicate scientific data accurately.”

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Physicists confirm the incredible existence of “time mirrors”

For decades, theoretical physicists tossed around the idea that time reflection, also known as “time mirrors,” might one day be demonstrated in a real-world experiment.

This idea seemed too big and wild, yet it kept popping up in serious discussions of quantum mechanics where equations hinted at surprising behavior.

A team led by Hady Moussa from the Advanced Science Research Center at the CUNY Graduate Center (CUNY ASRC) in New York City has now confirmed that these mysterious events actually exist.

They pulled off a successful test by changing the properties of a device in a quick, uniform way so that signals reversed direction in time.

Understanding time mirrors

This sort of time flip has been described as looking into a mirror and spotting your back instead of your face. It sounds like science fiction, but it has a basis in real physics.

Researchers had predicted for more than 50 years that sudden shifts in a wave’s environment could trigger such reversals.

Time reflections differ from everyday mirror views in one crucial way. Instead of light or sound bouncing back in space, the wave is forced to reverse its flow in time.

That shift causes the frequency of the wave to change, sparking a chain reaction of interesting phenomena in the system.

In normal reflections, you see an immediate image or hear an echo. A time reflection, on the other hand, makes part of the signal run backward.

There is no need for any speculation about time travel, though, since these effects involve a swift flip in the medium’s physical traits.

Time mirrors and metamaterials

To achieve this, the group used an engineered metamaterial designed to control electromagnetic wave behavior in unusual ways. Metamaterials allow scientists to manipulate waves far beyond ordinary mirrors or lenses.

By carefully adjusting electronic components on a strip of metal, they introduced a sudden jump that reversed the direction of incoming signals. They filled the strip with electronic switches hooked to capacitor banks.

That arrangement supplied the necessary burst of energy to force the wave to flip direction in time, an effect that used to be considered nearly impossible with accessible power.

The outcome was a time-reversed copy of the original wave, appearing just as predicted but never before seen with clarity.

Adjusting the system’s impedance at the right instant was key. Impedance is a measure of how much a structure resists electric current, and doubling it turned out to be the trick for flipping the wave in time.

By pulling this off in a lab setting, they proved that the energy hurdle can be overcome when conditions are precisely controlled.

Past attempts had failed because uniform shifts across the entire device were tough to generate, but the new approach surmounted that barrier.

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China’s Groundbreaking Diabetes Breakthrough—And the Global Backlash

In a revelation that could transform global healthcare, Chinese scientists have reportedly developed a stem cell therapy that reverses both Type 1 and Type 2 diabetes. While this scientific leap offers new hope for over 500 million people worldwide living with the chronic disease, it also threatens to shake up the multi-billion-dollar pharmaceutical industry that thrives on treating—not curing—diabetes.

At the core of this innovation is a technique that uses a patient’s own fat cells to generate insulin-producing islet cells. These engineered cells are then transplanted into the body, where they naturally regulate blood sugar levels. Since the cells are autologous (derived from the same person), there’s no risk of immune rejection, and patients don’t require immunosuppressants.

Initial trials have produced jaw-dropping results:

  • A 25-year-old woman with Type 1 diabetes went off insulin completely within 75 days.
  • A 59-year-old man with Type 2 diabetes was insulin-free in just 11 weeks. One year later, he remains off all medication.

This therapy takes advantage of induced pluripotent stem cell (iPSC) technology, a method of reprogramming adult cells to behave like embryonic stem cells. Scientists then coax these cells into becoming islet cells, which the pancreas uses to produce insulin.

The process essentially rebuilds a diabetic pancreas from the inside out—without the need for donor organs, immune-suppressing drugs, or lifelong insulin therapy.

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MIT is transforming plants into bright, eco-friendly city lights

Turning ordinary houseplants into sustainable, glowing lamps may soon become a reality, thanks to groundbreaking research by scientists at MIT. By embedding specialized nanoparticles into plant leaves, researchers have successfully transformed common plants into rechargeable, plant-based lights, significantly advancing the field of sustainable lighting technology.

A Bright Idea: Plants as Sustainable Lights

Every day, millions of electronic devices, built from plastic and circuit boards, become waste. Scientists have searched for innovative ways to create sustainable alternatives. Recently, researchers have turned to living plants for solutions. Unlike traditional plastic-based devices, plants naturally break down, avoiding long-term environmental harm.

Michael Strano, a chemical engineering professor at MIT, leads a team aiming to make plants function as light-emitting devices. “We wanted to create a light-emitting plant with particles that will absorb light, store some of it, and emit it gradually,” says Strano. This innovative concept could revolutionize how spaces are illuminated, moving away from traditional electrical systems.

How It Works: The Science of Plant Glow

The secret lies within a plant’s leaf structure. Leaves have specialized layers filled with tiny pores called stomata, which control the flow of air and water. Just beneath the leaf surface is a spongy mesophyll layer, rich with space to store nanoparticles.

MIT scientists infused leaves with microscopic particles of strontium aluminate, a phosphorescent compound often used in glow-in-the-dark paints. These nanoparticles, only about 650 nanometers wide, were coated in silica to protect the plants from damage. Infused through stomata pores, these particles settle evenly across the mesophyll layer, forming a thin film.

When illuminated briefly—just ten seconds—with blue LED lights, these nanoparticles absorb and store energy. Once charged, the plants emit a soft, visible glow lasting for nearly an hour. After the first few vibrant minutes, the glow gently fades but can be quickly recharged repeatedly over weeks, offering a sustainable lighting alternative.

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Medieval alchemy dream comes true: How physicists made gold from lead

In a breakthrough that would make medieval alchemists envious, scientists at Europe’s Large Hadron Collider have successfully transformed lead into gold, producing 89,000 atoms per second.

The Large Hadron Collider (LHC) is a giant particle accelerator that smashes atoms together at super-high speeds. Scientists there have found a way to knock three tiny particles called protons out of lead atoms, turning them into gold atoms.

The team behind this discovery, called the ALICE collaboration, used a unique way to create gold. Instead of crashing lead atoms head-on, they looked at what happens when the atoms just barely miss each other. Researchers explained that when this happens, powerful electromagnetic fields around the atoms can cause them to change into different elements.

“It’s impressive that our detectors can handle both major collisions that create thousands of particles and these smaller events that make just a few particles at a time,” Marco Van Leeuwen, who leads the ALICE project, said in a press release.

During one period of experiments from 2015 to 2018, the scientists created about 86 billion gold atoms. That sounds like a lot, but when you add up all that gold, scientists said it only weighs about 29 picograms, which is less than a trillionth of a gram. You’d need trillions of times more to make even a tiny piece of jewelry.

The machine can create about 89,000 gold atoms every second, but each atom only exists for a tiny fraction of a second before breaking apart. Recent upgrades to the machine have almost doubled the amount of gold it can make, but it’s still far from practical use.

According to Uliana Dmitrieva, a scientist for the ALICE collaboration, this is the first time scientists have been able to detect and study gold production at the LHC in this way.

“Thanks to the unique capabilities of the ALICE ZDCs, the present analysis is the first to systematically detect and analyse the signature of gold production at the LHC experimentally,” Dmitrieva said in the release.

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‘Dark photon’ theory of light aims to take down the famous double-slit experiment, upending quantum physics

For centuries, most scientists have shared the belief that light behaves as both a wave and a particle. This idea, then, became the central component to quantum theory, sprouting the field of science known as quantum mechanics.

The double-slit experiment supported the idea, showing bright and dark bands that indicated wave-like interference. But now, a new study suggests that this experiment might not lock us into seeing light as a wave.

According to the experts, we can interpret those interference bands using quantum particles alone.

The research was led by Gerhard Rempe, the director of the Max Planck Institute for Quantum Optics. He teamed up with collaborators at Federal University of São Carlos and ETH Zurich for the study.

Modern physics and our view of light

In 1801, Thomas Young introduced an experiment by shining light through two narrow openings to produce intersecting fringes on a screen. His findings led many to conclude that light must be a wave.

A century later, quantum mechanics began to take shape, revealing that quantum particles like electrons could mimic wave-like light interference too.

Albert Einstein’s work on the photoelectric effect showed that light travels in discrete packets called photons. Niels Bohr then elaborated on wave-particle duality, ushering in one of the cornerstones of modern physics.

Dark and visible photons

The new approach from the research team explores the concept of bright and dark modes.

In their view, interference patterns can emerge from combining “detectable” and “undetectable” photon states. These bright states interact with an observer, while dark states remain hidden.

Such hidden photons might linger at places where we would normally think the light cancels out. Observers who try to track the path of these photons alter the state, flipping what was dark into bright or vice versa.

From this perspective, the light pathways can be viewed as quantum superpositions, rather than purely classical wave interference.

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Human ‘bodyoids’: We will soon be able to manufacture brain-less human bodies to generate replacement organs

Why do we hear about medical breakthroughs in mice, but rarely see them translate into cures for human disease? … [In] large part from a common root cause: a severe shortage of ethically sourced human bodies.

[We are forced] to rely heavily on animals in medical research, a practice that can’t replicate major aspects of human physiology and makes it necessary to inflict harm on sentient creatures. In addition, the safety and efficacy of any experimental drug must still be confirmed in clinical trials on living human bodies. These costly trials risk harm to patients, can take a decade or longer to complete, and make it through to approval less than 15% of the time.

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Researchers Announce They’ve Discovered A New Cannabinoid In Marijuana

Researchers have announced that they’ve successfully identified a new cannabinoid—cannabielsoxa—produced by the marijuana plant as well as a number of other compounds “reported for the first time from the flowers of C. sativa.”

The team of government and university researchers out of South Korea also evaluated 11 compounds in cannabis for antitumor effects in neuroblastoma cells, finding that seven “revealed strong inhibitory activity.”

Authors said the findings represent “an initial step toward developing a product for the treatment of neuroblastoma,” a cancer they note “is the most common solid tumor in children and the most frequent malignancy in the first year of life.”

Published this month in the journal Pharmaceuticals, the paper says researchers used chromatographic techniques to isolate the compounds. They then examined their molecular structures and used a metabolic testing method to assess their toxicity to neuroblastoma cells.

“This study successfully isolated a new cannabinoid and six known cannabinoid compounds, along with a new chlorin-type compound and three additional chlorine-type compounds,” the study says, “which were reported for the first time from the flowers of C. sativa.”

Two of the compounds identified for the first time in cannabis—132-hydroxypheophorbide b ethyl ester and ligulariaphytin A—are described as “chlorin-type compounds.”

They, along with five other known cannabinoids—cannabidiol (CBD), cannabidiolic acid (CBDA), cannabidiolic acid methyl ester (CBDA-ME), delta-8 THC and cannabichromene (CBG)—”could be considered as the potential compounds for antitumor effects against neuroblastomas,” researchers found.

Results of the antitumor analyses “demonstrated that cannabinoid compounds had stronger inhibitory effects on neuroblastoma cells than chlorin-type compounds,” the paper notes.

The new cannbinoid, cannabielsoxa, was not among the compounds that researchers identified as potentially toxic to neuroblastoma cells, however.

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Scientists spark major breakthrough with ‘blanket’ that makes rivers drinkable: ‘We are the only ones who have made these structures’

Ohio State University researchers have developed a way to supercharge titanium oxide nanoparticles, creating a light-absorbing blanket that can clean water and generate power.

The process starts with electrospinning — a method of applying electrical force to create small fibers — in order to develop fiber-like strips of titanium dioxide (TiO2). This material is often used in solar cells, gas sensors, and various self-cleaning technologies, as the school reported.

The power generation abilities of TiO2 have previously been limited since the necessary chemical reactions only occur through the use of non-visible UV light.

Following the addition of copper, however, these new nanomat structures are able to absorb enough light energy to break down pollutants in air and water, according to Professor Pelagia-Iren Gouma, the lead author of this study.

“There hasn’t been an easy way to create something like a blanket that you can lay on water and start creating energy,” she said. “But we are the only ones who have made these structures and the only ones to demonstrate that they actually work.”

When it absorbs light, the report explained, TiO2 forms electrons that oxidize water and break down pollutants until they’re benign. The addition of copper was able to supercharge the process and optimize the material’s effectiveness.

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Scientists claim to have discovered ‘new colour’ no one has seen before

A team of scientists claim to have discovered a new colour that no human has ever seen before.

The research follows an experiment in which researchers in the US had laser pulses fired into their eyes.

By stimulating specific cells in the retina, the participants claim to have witnessed a blue-green colour that scientists have called “olo”, but some experts have said the existence of a new colour is “open to argument”.

The findings, published in the journal Science Advances on Friday, have been described by the study’s co-author, Prof Ren Ng from the University of California, as “remarkable”.

He and his colleagues believe that the results could potentially further research into colour blindness.

Prof Ng, who was one of five people to take part in the experiment, told BBC Radio 4’s Today programme on Saturday that olo was “more saturated than any colour that you can see in the real world”.

“Let’s say you go around your whole life and you see only pink, baby pink, a pastel pink,” he said.

“And then one day you go to the office and someone’s wearing a shirt, and it’s the most intense baby pink you’ve ever seen, and they say it’s a new colour and we call it red.”

During the team’s experiment, researchers shone a laser beam into the pupil of one eye of each participant.

There were five participants in the study – four male and one female – who all had normal colour vision. Three of the participants – including Prof Ng – were co-authors of the research paper.

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