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Category: biological – Page 44

The problem with just leaving poop on the highest peak in the world is that the environ’s extremely cold temperatures are not at all conducive to degrading biological matter. In addition, poop runoff is a problem at lower elevations — to the degree that they’ve contaminated the local watershed.

Basically, Mount Everest is covered in human feces. It’s a problem that hikers, sherpas and local officials have been complaining about for years.

But now, according to CNN, new poop rules are in place. If you want to climb Mount Everest from Nepal, the most common entryway, you gotta take your crap back with you instead of leaving it on the mountain.

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Very interesting article.

Now a physicist working at the University of Portsmouth in the UK has published research in the AIP Advances journal that he says provides support to the strange theory.

“I don’t want to paraphrase Morpheus from The Matrix but he said ‘what is real?’” the Associate Professor of Physics, Dr Melvin Vopson, said.

“All the senses that we have, they’re just electrical signals that are being decoded by our brains. What this is is a biological computer. There’s nothing more,” he added.

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Birds flock. Locusts swarm. Fish school. Within assemblies of organisms that seem as though they could get chaotic, order somehow emerges. The collective behaviors of animals differ in their details from one species to another, but they largely adhere to principles of collective motion that physicists have worked out over centuries. Now, using technologies that only recently became available, researchers have been able to study these patterns of behavior more closely than ever before.

In this episode, the evolutionary ecologist Iain Couzin talks with co-host Steven Strogatz about how and why animals exhibit collective behaviors, flocking as a form of biological computation, and some of the hidden fitness advantages of living as part of a self-organized group rather than as an individual. They also discuss how an improved understanding of swarming pests such as locusts could help to protect global food security.

Listen on Apple Podcasts, Spotify, Google Podcasts, TuneIn or your favorite podcasting app, or you can stream it from Quanta.

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Unlike me, Kurzweil has been embracing AI for decades. In his 2005 book, The Singularity Is Near: When Humans Transcend Biology, Kurzweil made the bold prediction that AI would expand human intelligence exponentially, changing life as we know it. He wasn’t wrong. Now in his 70s, Kurzweil is upping the ante in his newest book, The Singularity Is Nearer: When We Merge with AI, revisiting his prediction of the melding of human and machine, with 20 additional years of data showing the exponential rate of technological advancement. It’s a fascinating look at the future and the hope for a better world.

Kurzweil has long been recognized as a great thinker. The son of a musician father and visual artist mother, he grew up in New York City and at a young age became enamored with computers, writing his first computer program at the age of 15.

While at MIT, earning a degree in computer science and literature, Kurzweil started a company that created a computer program to match high school students with colleges. In the ensuing years, he went on to found (and sell) multiple technology-fueled companies and inventions, including the first reading machine for the blind and the first music synthesizer capable of re-creating the grand piano and other orchestral instruments (inspired by meeting Stevie Wonder). He has authored 11 books.

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In a groundbreaking study led by Dr. Karen Fitzgerald, six women between the ages of 45 and 65 experienced a remarkable reduction in their biological age by an average of five years in just eight weeks. The findings offer promising insights into the potential of lifestyle changes to combat aging.

The study, which focused on the distinction between chronological age and biological age, revealed that while chronological age remains fixed, biological age — the age of one’s cells — can be influenced and even reversed through targeted interventions.

Using Dr. Steven Horvath’s epigenetic clock, which measures 353 markers associated with methylation changes linked to aging, the researchers assessed the participants’ biological age before and after the intervention.

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Now Flinders University researchers have discovered a light-responsive, inexpensive sulfur-derived receptive to low power, visible light lasers—which promises a more affordable and safer production method in nanotech, chemical science and patterning surfaces in biological applications.

Details of the novel system have just been published in Angewandte Chemie International Edition, featuring a laser-etched version of the famous “Mona Lisa” painting and micro-Braille printing even smaller than a pin head.

“This could be a way to reduce the need for expensive, specialized equipment, including high-power lasers with hazardous radiation risk, while also using more sustainable materials. For instance, the key polymer is made from low-cost elemental sulfur, an industrial byproduct, and either cyclopentadiene or dicyclopentadiene,” says Matthew Flinders Professor of Chemistry Justin Chalker, from the Flinders University.

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A recent study reveals how hydrogen gas, often touted as the energy source of tomorrow, provided energy in the past, at the origin of life 4 billion years ago. Hydrogen gas is clean fuel. It burns with oxygen in the air to provide energy with no CO2.

Hydrogen is a key to sustainable energy for the future. Though humans are just now coming to realize the benefits of hydrogen gas (H2 in chemical shorthand), microbes have known that H2 is a good fuel for as long as there has been life on Earth. Hydrogen is ancient energy.

The very first cells on Earth lived from H2 produced in hydrothermal vents, using the reaction of H2 with CO2 to make the molecules of life. Microbes that thrive from the reaction of H2 and CO2 can live in total darkness, inhabiting spooky, primordial habitats like deep-sea hydrothermal vents or hot rock formations deep within the Earth’s crust, environments where many scientists think that life itself arose.

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