Uncommon Descent Serving The Intelligent Design Community
Author

News

Moshe Averick: When does a “gap” point beyond conventional science?

Rabbi Moshe Averick, author of  The Confused World of Modern Atheism (Mosaica Press, 2016) addresses the “God of the Gaps” – the claim that the intersections between the material and the immaterial in nature are just “gaps” waiting to be filled in (with special reference to the origin of life): The first thing I would bring to your attention – although not the essential point – is that when we discuss the Origin of Life we are not talking about a “gap” in scientific knowledge. A gap implies some acceptable and tolerable missing piece of the puzzle that we expect to fill in within some reasonable amount of time. What we actually see is more like the ocean between the coast Read More ›

Historian: Human evolution theorists were attempting to be moral teachers

Post World War II, scientists studying origins, sensed a moral mission to tell the story in order to encourage us to be better people. The close-knit hunter-gatherer clans that represented all humanity co-operated for survival and were chock full of moral lessons for us all. But was it true?: Readers and reviewers lumped Morris, Ardrey and Lorenz together as promoting a powerful new vision of humans as animals. (To be fair, each author saw different moral systems and imperatives emerging from their research, but these nuances mattered less to readers than their shared zoomorphic vision.) The view of humans as specialised animals carried implications for who among the scientists could truly judge what it meant to be human. If our Read More ›

Do we really live longer because of “longevity genes”? Researchers cast doubt

It’s now suggested that people likely to live long tend to find each other (assortative mating). How else to explain this?Researchers found that siblings’ and first cousins’ lifespans were well correlated but also: But spouses’ lifespans were correlated, too. That could be easily explained by spouses sharing the same household and lifestyle: eating the same healthy diet or puffing on cigarettes together. But the researchers noticed something odd: the lifespans of other relatives related only by marriage also correlated. That can’t be explained by genes, and it can’t be explained by shared environment. So Ruby and his colleagues started investigating the lifespans of in-laws. They looked at siblings-in-law, and first-cousins-in-law, and then further afield, at relationships like “the sibling of Read More ›

Stress: Scientist to be sentenced for trying to poison labmate

We run this story as a public service. Sometimes the pressure might get to you but it is almost never entirely that person’s fault and this is not the way to go about dealing with it: Graduate student Zijie Wang has pleaded guilty to poisoning a co-worker in the chemistry labs at Queen’s University in Kingston, Canada. He had been dosing his co-worker’s food with N-nitrosodimethylamine (NDMA), used to induce cancer in rats, which initially made the victim vomit and gave him diarrhoea. The victim – who survived and testified in court on 2 November – subsequently installed a camera on his desk, and recorded Wang pipetting a substance into his food. Wang is due to be sentenced on 11 Read More ›

Cats played a unique role in the space program

Back in the 1960s, space scientists needed to know if it is true that a cat always lands on its feet: NASA contributed funding to the paper “A Dynamical Explanation of the Falling Cat Phenomenon,” published in the International Journal of Solids and Structures, by Stanford’s T.R. Kane and M.P. Scher. What was so significant about the paper was that it demonstrated that cats are physically capable of rotating their body in mid-air to right themselves when falling. A cat employs specific motor functions in order to achieve this self-righting mechanism, and the paper analyzed these functions as equations that could then be applied to humans. While this function isn’t very useful to humans on earth, it’s critically important in Read More ›

Software pioneer: The nature of intelligence forbids general artificial intelligence

This post went viral yesterday at Mind Matters: The 2014 science fiction film Transcendence featured a scientist who uploaded his consciousness into an AI program. Many people talk as though things like that are just around the corner. But industry pros say it isn’t really possible. Why not? François Chollet, author of Keras, a framework for the Python deep learning language, offers a list of reasons, but starts by pointing to an underlying misconception: that a super-AI could be developed that would go on creating more super-AIs until something vastly more intelligent than a human being arises. He points out that such a process has not actually happened in the universe of which we have knowledge: An overwhelming amount of Read More ›

Suzan Mazur asks: How far have we gotten in understanding the mechanome?

The mechanome is the underresearched “ the set of proteins or molecular entities that sense or respond to forces” within the cell (Allen Liu). Our earlier stab at the subject here at UD garnered 354 comments, so there’s no shortage of interest. The mechanome (and mechanobiology in general) plays a key role in research into artificial cells. Suzan Mazur is the author of The Paradigm Shifters: Overthrowing ‘the Hegemony of the Culture of Darwin’. Suzan Mazur talks to mechanical and biomedical engineer Allen Liu, one of the people best placed to offer some insights:   Suzan Mazur: The Liu Lab at the University of Michigan is particularly interested in the mechanobiology of the cell lipid membrane. Would you briefly describe your Read More ›

Can culture explain why brains have become bigger?

From ScienceDaily: Humans have extraordinarily large brains, which have tripled in size in the last few million years. Other animals also experienced a significant, though smaller, increase in brain size. These increases are puzzling, because brain tissue is energetically expensive: that is, a smaller brain is easier to maintain in terms of calories. Building on existing research on learning, Muthukrishna and colleagues analytically and computationally modeled the predictions of the cultural brain hypothesis and found that this theory not only explains these increases in brain size, but a variety of other relationships with group size, learning strategies, knowledge and life history. The theory relies on the idea that brains expand to store and manage more information. Brains expand in response Read More ›

Theorists debate: How “neutral” is evolution, really?

Neutral evolution, intended to cover for the failures of Darwinian evolution (natural selection), is now being challenged by selectionists: Selection isn’t in doubt, but many scientists have argued that most evolutionary changes appear at the level of the genome and are essentially random and neutral. Adaptive changes groomed by natural selection might indeed sculpt a fin into a primitive foot, they said, but those changes make only a small contribution to the evolutionary process, in which the composition of DNA varies most often without any real consequences. But now some scientists are pushing back against this idea, known as neutral theory, saying that genomes show much more evidence of evolved adaptation than the theory would dictate. This debate is important because Read More ›

Cockatoos can learn to adjust tools

From ScienceDaily: Captive Goffins are capable of inventing and manipulating tools, even though they aren’t known to use tools habitually. The authors of the present study investigated two questions: do Goffins adjust tool properties to save effort, and if so, how accurately can they adjust tool dimensions for the task? The authors supplied six adult cockatoos with large cardboard sheets to tear into strips as tools for the testing apparatus: a food platform with a food reward set at varying distances (4-16cm) behind a small opening which also varied in width (1-2cm). They found that the Goffins were capable of adjusting the length of their cardboard strip tools to account for variations in food distance, making shorter tools when the Read More ›

World’s oldest known painting, 40,000 years old, found in Borneo jungle

A thick-bodied animal in red ocher: Researchers have found older man-made images, but these were abstract patterns, such as crisscrossing lines. The switch to figurative art represented an important shift in how people thought about the world around them — and possibly themselves. Carl Zimmer, “In Cave in Borneo Jungle, Scientists Find Oldest Figurative Painting in the World” at New York Times We actually don’t know that there aren’t older painting (or newer crisscrossed lines). This one was only just found. The caves contain thousands of other images, including hand stencils, animals, abstract signs, and symbols: The animal appears to have a spear shaft stuck in its flank and is one of a series of similar red-orange coloured paintings, which Read More ›

Moths use “acoustic camouflage” to evade bats

Their fuzz works like an acoustic panel to cut down the noise volume from their movements. From ScienceDaily: While some moths have evolved ears that detect the ultrasonic calls of bats, many types of moths remain deaf. In those moths, Neil has found that the insects developed types of “stealth coating” that serve as acoustic camouflage to evade hungry bats. Neil will describe his work during the Acoustical Society of America’s 176th Meeting, held in conjunction with the Canadian Acoustical Association’s 2018 Acoustics Week, Nov. 5-9 at the Victoria Conference Centre in Victoria, Canada. In his presentation, Neil will focus on how fur on a moth’s thorax and wing joints provide acoustic stealth by reducing the echoes of these body Read More ›

Pleistocene human remains show many deformities

Apparently, the golden age in the distant past of good health due to clean, fresh outdoor living was a myth after all: Anthropologist Erik Trinkaus from Washington University in St Louis, US, compiled examination records for two Late Pleistocene infants, six children, four juveniles, six adolescents, 30 prime age adults, and eight older adults, from several archaeological sites around the world. He discovered that all up they showed evidence of 75 skeletal or dental abnormalities. Based on rates of similar disorders in modern human populations, Trinkaus finds the probability that the total is merely an artefact of comparatively small sample size to be “vanishingly small”.Andrew Masterson, “Huge numbers of deformities found in ancient human remains” at Cosmos Trinkaus stresses that Read More ›

Common coral species features unique immune strategy

From ScienceDaily: Roughly 30 percent of the cauliflower coral’s (Pocillopora damicornis) genome was unique compared to several other reef-building corals. In this 30%, many of these genes were related to immune function. This diversity of genes related to immune function, the researchers say, may be important for the long-term survival of coral reefs as climate change and ocean acidification continue to alter the environment to which corals are adapted. “This coral is traditionally thought of as a weed, and yet it may be one of the last corals to survive environmental changes such as climate change,” said senior author of the study Nikki Traylor-Knowles, an assistant professor of marine biology and ecology at the UM Rosenstiel School. An animal like Read More ›

No one evolved faster than the Neanderthal

Look how smart he got in the last few decades: This from a discussion of whether Neanderthals had language: Based on these results, most researchers agree Neanderthals were capable of emitting and hearing complex vocalizations. However, they disagree over the implications. While some consider the findings indicative of speech-based language in Neanderthals, others propose these features could have evolved for other reasons, like singing. Neanderthals may have lacked the cognitive abilities for language, but possessed the physical anatomy for musical calls to attract mates or sooth infants. To assess if Neanderthals had the brains for language, researchers usually rely on proxies from the archaeological record — artifacts that required the same cognitive prerequisites as language, such as hierarchical organization or Read More ›