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Studies using swabs from coronavirus patients seem to contradict earlier findings from cell cultures which showed Omicon replicated faster than earlier variants. As Benjamin Meyer from the centre for Vaccinology at the University of Geneva, explains there may be other reasons why omicron is spreading faster not just how quickly it reproduces.
Predicting how the pandemic will develop is not possible, however predicting what individual mutations in the virus may develop and the impact they might have individually and collectively is getting closer, Cyrus Maher and Amalio Telenti of the biotech company Vir, have developed a way to model potential future viral mutations which they hope will now be used by many scientists worldwide looking to understand the virus.
There are concerns that other viruses may be on the rise, bird flu in particular, which as Nicola Lewis of the Royal Veterinary College explains is now spreading to part of the world where it is not usually seen, and infecting other animals as well as birds.
And we’ve news of a massive collection of nests – at the bottom of the sea, Deep sea Ecologist Autun Perser describes how he found them in Antarctica.
Also, Are big heads smarter? We live in a world where bigger is often seen as better - and the size of someone's brain is no exception. But a listener in Nairobi wants to know, does size really matter when it comes to grey matter? CrowdScience presenter Marnie Chesterton is on a mission to find out if the physical attributes of our head and brain can tell us anything about what's going on inside. We certainly thought so in the past.
In the 1800s, phrenology – determining someone’s characteristics by their skull shape – was very fashionable and curator Malcolm MacCallum gives us a tour of the extensive phrenological collection of death masks and skulls in Edinburgh’s anatomy museum. It's a 'science' that's now been completely debunked. Yet there’s no escaping the fact that over our evolutionary history, human brain size has increased dramatically alongside our cognitive capabilities.
But is it the whole story? Rick Potts, Director of the Human Origins Program at the Smithsonian tells of the point in time when human brains expanded the most; a time when the climate was changing, resources were unreliable and the intelligence to be adaptable might mean the difference between life and death. Adaptability is also key to Professor Wendy Johnson’s definition of intelligence, although she points out that IQ test, flawed as they are, are still the best predictor we have for intelligence… and that, yes, there is a weak correlation between having a larger head, and doing better at IQ tests. Why is that? We don’t know, says Dr Stuart Ritchie from KCL. According to him, neuroscientists are only in the foothills of understanding how a physical difference in the brain might underpin a person’s psychology. But researching this could offer valuable insights into how our amazing brains work.
(Image: Getty Images)
We live in a world where bigger is often seen as better - and the size of someone's brain is no exception. But a listener in Nairobi wants to know, does size really matter when it comes to grey matter? CrowdScience presenter Marnie Chesterton is on a mission to find out if the physical attributes of our head and brain can tell us anything about what's going on inside. We certainly thought so in the past.
In the 1800s, phrenology – determining someone’s characteristics by their skull shape – was very fashionable and curator Malcolm MacCallum gives us a tour of the extensive phrenological collection of death masks and skulls in Edinburgh’s anatomy museum. It's a 'science' that's now been completely debunked. Yet there’s no escaping the fact that over our evolutionary history, human brain size has increased dramatically alongside our cognitive capabilities.
But is it the whole story? Rick Potts, Director of the Human Origins Program at the Smithsonian tells of the point in time when human brains expanded the most; a time when the climate was changing, resources were unreliable and the intelligence to be adaptable might mean the difference between life and death. Adaptability is also key to Professor Wendy Johnson’s definition of intelligence, although she points out that IQ test, flawed as they are, are still the best predictor we have for intelligence… and that, yes, there is a weak correlation between having a larger head, and doing better at IQ tests. Why is that? We don’t know, says Dr Stuart Ritchie from KCL. According to him, neuroscientists are only in the foothills of understanding how a physical difference in the brain might underpin a person’s psychology. But researching this could offer valuable insights into how our amazing brains work.
[Image: Brain being measured. Credit: Getty Images]
Studies using swabs from coronavirus patients seem to contradict earlier findings from cell cultures which showed Omicon replicated faster than earlier variants. As Benjamin Meyer from the centre for Vaccinology at the University of Geneva, explains there may be other reasons why omicron is spreading faster not just how quickly it reproduces.
Predicting how the pandemic will develop is not possible, however predicting what individual mutations in the virus may develop and the impact they might have individually and collectively is getting closer, Cyrus Maher and Amalio Telenti of the biotech company Vir, have developed a way to model potential future viral mutations which they hope will now be used by many scientists worldwide looking to understand the virus.
There are concerns that other viruses may be on the rise, bird flu in particular, which as Nicola Lewis of the Royal Veterinary College explains is now spreading to part of the world where it is not usually seen, and infecting other animals as well as birds.
And we’ve news of a massive collection of nests – at the bottom of the sea, Deep sea Ecologist Autun Perser describes how he found them in Antarctica.
(Image: Getty Images)
Presenter: Roland Pease Producer: Julian Siddle
“I tell my students, ‘If somebody utters the sentence that starts with the words, “History teaches us” the rest of the sentence is probably wrong.’ History has no direct lessons for almost anything. Our own age is sufficiently different, sufficiently unique, from what happened in the past that any facile lessons from history are more likely to mislead than to enlighten.” That series of caveats comes from Joel Mokyr, who, perhaps counter-intuitively, is an economic historian. And in fact, the Robert H. Strotz Professor of Arts and Sciences and professor of economics and history at the Chicago-area Northwestern University shows in this Social Science Bites podcast that there’s quite a bit to learn from history if you keep your expectations in check.
For example, he explains that “the good old days weren’t all that good and that the very best time to be born in human history is today. That sounds hard to believe in an age where we’re all running around with face masks and facing quarantine, but it’s still true.”
For his own part, Mokyr tells interviewer Dave Edmonds, “I use economics to understand history, and I use history to understand economics.” Mokyr’s ties to economic history are deep: he was president of the Economic History Association in 2003-04, spent four years in 1990s as senior editor of the Journal of Economic History, was editor-in-chief of the Oxford Encyclopedia of Economic History, and is currently editor-in-chief of the Princeton University Press Economic History of the Western World series of monographs.
From that perch, he explains, presumably with a smile, that his peers work with ‘expired data.’ Economic historians “scour the past looking for large data sets that we can use in some way to make inferences. The issue of causality becomes somewhat of an obsession in economics these days, and economic history is very much a part of this.”
In this interview, Mokyr details how the improvement in the human condition he cited above is connected to the Industrial Revolution. “The Industrial Revolution is particularly important because that’s where it all started -- before 1750 almost nowhere in the world were living standards approaching anything but miserable and poor.”
Economic activity before the year 1750 was mostly the story of trade, he explains, while after 1750, it became the story of knowledge. “The Industrial Revolution was the slow replacement of trade and finance and commerce by another thing, and that is growing knowledge of natural phenomena and rules that can be harnessed to material welfare of people.”
To demonstrate this approach, he offered the example of steel. While it has been made for centuries it wasn’t until 1780 that anyone knew roughly why this alloy of iron and carbon resulted in such a useful metal, and therefore could exploit its properties more by design than by chance. “If you don’t know why something works,” Mokyr said, “it’s very difficult to improve it, to tweak it.”
Mokyr’s scholarship has earned him a variety of honors, including the biennial Heineken Prize by the Royal Dutch Academy of Sciences for a lifetime achievement in historical science in 2006. He has also written a number of prize-winning books, including The Lever of Riches: Technological Creativity and Economic Progress, The Gifts of Athena: Historical Origins of the Knowledge Economy, and most recently, A Culture of Growth.