2,000 Atoms Exist in Two Places at Once in Unprecedented Quantum Experiment

The new experiment demonstrated a bizarre quantum effect from the double-slit experiment at an unprecedented scale.

Giant molecules can be in two places at once, thanks to quantum physics.

That’s something that scientists have long known is theoretically true based on a few facts: Every particle or group of particles in the universe is also a wave — even large particles, even bacteria, even human beings, even planets and stars. And waves occupy multiple places in space at once. So any chunk of matter can also occupy two places at once. Physicists call this phenomenon “quantum superposition,” and for decades, they have demonstrated it using small particles.

But in recent years, physicists have scaled up their experiments, demonstrating quantum superposition using larger and larger particles. Now, in a paper published Sept. 23 in the journal Nature Physics, an international team of researchers has caused molecule made up of up to 2,000 atoms to occupy two places at the same time.

Leer Más

Human Skulls Follow da Vinci’s Golden Ratio

The Golden Ratio, described by Leonardo da Vinci and Luca Pacioli as the Divine Proportion, is an infinite number often found in nature, art and mathematics. It’s a pattern in pinecones, seashells, galaxies and hurricanes.

In a new study investigating whether skull shape follows the Golden Ratio (1.618 … ), Johns Hopkins researchers compared 100 human skulls to 70 skulls from six other animals, and found that the human skull dimensions followed the Golden Ratio. The skulls of less related species such as dogs, two kinds of monkeys, rabbits, lions and tigers, however, diverged from this ratio.

“The other mammals we surveyed actually have unique ratios that approach the Golden Ratio with increased species sophistication,” says Rafael Tamargo, M.D., professor of neurosurgery at the Johns Hopkins University School of Medicine. “We believe that this finding may have important anthropological and evolutionary implications.”

Leer Más

Physicists puzzled by strange numbers that could explain reality

Eight-dimensional octonions may hold the clues to solve fundamental mysteries.

  • Physicists discover complex numbers called octonions that work in 8 dimensions.
  • The numbers have been found linked to fundamental forces of reality.
  • Understanding octonions can lead to a new model of physics.


Is our reality, including its forces and particles, based on the strange properties of numbers with eight dimensions called “octonions“? A physicist thinks so, having found a way to expand 40-year-old research to reach surprising new directions.

First, a brief history of numbers.

Regular numbers that we are familiar with in our everyday life can be paired up in a special way to create “complex numbers,” which act like coordinates on a two-dimensional plane. This was discovered in 16h-century Italy by the mathematician Gerolamo Cardano. As explains Natalie Wolchover of Quanta Magazine, you can perform operations on complex numbers like adding, subtracting, multiplying and dividing by “translating and rotating positions around the plane.”

Leer Más

Ebola drugs show ‘90% survival rate’ in breakthrough trial

Ebola may soon be a “preventable and treatable” disease after a trial of two drugs showed significantly improved survival rates, scientists have said.

Four drugs were trialled on patients in the Democratic Republic of Congo, where there is a major outbreak of the virus.

More than 90% of infected people can survive if treated early with the most effective drugs, the research showed.

The drugs will now be used to treat all patients with the disease in DR Congo, according to health officials.

On Tuesday, two people cured of Ebola using the experimental drugs were released from a treatment centre in Goma, eastern DR Congo, and reunited with their families.

The US National Institute of Allergy and Infectious Diseases (NIAID), which co-sponsored the trial, said the results are “very good news” for the fight against Ebola.

The drug, named REGN-EB3 and mAb114, work by attacking the Ebola virus with antibodies, neutralising its impact on human cells.

Leer Más

Broken heart syndrome linked with cancer

One in six people with broken heart syndrome had cancer and they were less likely to survive for five years after it occurred, according to new international research in Journal of the American Heart Association.

Broken heart syndrome, also called takotsubosyndrome, occurs when the heart’s main pumping chamber temporarily enlarges and doesn’t pump well. Although the syndrome may feel like a , with and shortness of breath, there is no heart muscle damage and no blockage in the coronary arteries feeding the heart. Broken heart syndrome can be triggered by emotional or , but this international study of patients from 26 centers provides the strongest association yet between the syndrome and cancer

Leer Más

Vast 9,000-year-old ‘metropolis’ discovered buried near Jerusalem

Israeli archaeologists claim to have found Middle East’s largest ever Neolithic excavation

An enormous Neolithic settlement described by archaeologists as an ancient “metropolis” has been discovered only three miles outside of Jerusalem.

The 9,000-year-old site was located next to the modern day town of Motza by scientists with the Israeli Antiquities Authority (IAA) – who claimed it represented a “Big Bang” moment in the field of prehistorical research.

“It’s a game changer, a site that will drastically shift what we know about the Neolithic era,” Jacob Vardi, co-director of the excavations at the site.

Leer Más

Altos níveis de arsênio na água engarrafada são dectados em teste


Testes independentes encomendados pelo Centro de Saúde Ambiental (CEH), na Califórnia (EUA), encontraram altos níveis de arsênico tóxico nas marcas de água engarrafada Starkey, de propriedade da Whole Foods, e Peñafiel, da empresa Keurig Dr Pepper. A quantidade detectada estava acima do nível aceito e fabricantes e varejistas foram notificados.

“Os consumidores estão sendo desnecessariamente expostos sem conhecimento ou consentimento”, disse Michael Green, diretor executivo da CEH. “Os clientes normalmente compram água engarrafada a custos exorbitantemente altos, com a suposição de que é mais seguro e saudável beber do que a água da torneira, sem saber que estão ingerindo um metal extremamente tóxico ligado a defeitos congênitos e câncer.”

Em entrevista ao HuffPost, Green afirmou que os níveis exatos de arsênio não poderiam ser divulgados porque a organização está processando a Whole Foods e a Keurig Dr Pepper. Enquanto isso, a Keurig Dr Pepper anunciou a retirada de sua Peñafiel. O recall inclui todos os produtos de água mineral da marca, desde garrafinhas até os galões.

Leer Más