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Aug 17, 2024

Scientists propose theory to resolve time travel paradox and make time travel possible

Posted by in categories: mathematics, physics, space, time travel

A new theory suggests time travel might be possible without creating paradoxes.

TL;DR:

A physics student from the University of Queensland, Germain Tobar, has developed a groundbreaking theory that could make time travel possible without creating paradoxes. Tobar’s calculations suggest that space-time can adjust itself to avoid inconsistencies, meaning that even if a time traveler were to change the past, the universe would correct itself to prevent any disruptions to the timeline. This theory offers a new perspective on time loops and free will, aligning with Einstein’s predictions. While the math is sound, actual time travel remains a distant possibility.

Aug 17, 2024

Largest animal genome sequenced — and just 1 chromosome is the size of the entire human genome

Posted by in category: biotech/medical

Scientists have sequenced the largest known animal genome — and it’s 30 times bigger than the human genome.

The genome belongs to the South American lungfish (Lepidosiren paradoxa), a primeval, air-breathing fish that “hops” onto land from the water using weird, limb-like fins. The fish’s DNA code expanded dramatically over the past 100 million years of evolutionary history, racking up the equivalent of one human genome every 10 million years, researchers found.

Aug 17, 2024

The dominant model of the universe is creaking

Posted by in category: cosmology

Dark energy could break it apart.

Aug 17, 2024

Quantum computing demands a quantum of realism first, says IBM

Posted by in categories: computing, quantum physics

To make quantum computing succeed, we need to step back from the unseemly rush towards hype and stock-price boosts that has characterized other new markets.

Aug 17, 2024

How Probiotics cured cancer, and saved lives after Chernobyl

Posted by in categories: biotech/medical, military

During the Cold War Era of the 1960s, Russian researchers were looking for ways to support the immune system in conditions running the gamut from cancer to bio-warfare agents. Eastern Europeans, with a cultural love of fermented milk products, logically looked to probiotics, or lactobacillus, for immune support because it was safe, cheap and effective.

A Bulgarian researcher and medical doctor, Dr. Ivan Bogdanov, researched lactobacillus bacteria in the 1960s. Bogdanov believed that specific strains of probiotics could have anti-tumor properties.

The doctor’s research team injected mice with a sarcoma cancer, then administered a crude mixture of cell fragments from a strain of Lactobacillus delbrukii. Bogdanov observed that the cancer disappeared within a few days. Subsequently, researchers attempted to re-grow cancer in the same mice, but without success — the mice seemed immune to the cancer cells.

Aug 17, 2024

How clues in honey can help fight our biggest biodiversity challenges

Posted by in category: sustainability

A single jar of honey can reveal more about our environment than we ever imagined, finds Graham Lawton.

Aug 17, 2024

New fossils hint how tiny ‘water bears’ survived mass extinctions

Posted by in category: existential risks

The specimens provide insight into how tardigrades evolved cryptobiosis, a temporary and almost complete shutdown of bodily processes.

Aug 17, 2024

Pupil Dilation Reveals Better Working Memory

Posted by in category: futurism

People whose eyes dilated more performed better on tests of working memory.

By Kate Graham-Shaw

Aug 17, 2024

Geometry of abstract learned knowledge in the hippocampus

Posted by in categories: neuroscience, virtual reality

The hippocampus geometrically represents both physical location and abstract variables on a neural manifold in mice performing a decision-making task in virtual reality.

Aug 17, 2024

Faster than one pixel at a time—new imaging method for neutral atomic beam microscopes

Posted by in category: futurism

Microscope images could be obtained much more quickly—rather than one pixel at a time—thanks to a new imaging method for neutral atomic beam microscopes developed by Swansea University researchers. It could ultimately lead to engineers and scientists getting faster results when they are scanning samples.

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