- CBC - Technology & Science News
- 22/11/25 21:35
Bob McDonald's blog: Mathematical laws of motion and gravity that go back hundreds of years underpin our ability to guide spacecraft to distant...
111 articles from FRIDAY 25.11.2022
Bob McDonald's blog: Mathematical laws of motion and gravity that go back hundreds of years underpin our ability to guide spacecraft to distant...
An international team of researchers has found evidence of repeated genomic duplications and genetic diversification in protein kinase R (PKR) in mouse-eared bats. In their paper published in the journal Science Advances, the group describes their genomic study of multiple species of mouse-eared bats and their sequencing of 15 of them.
One in five of Ireland's 420,000 low paid workers are over 50 years old, according to a new report by UCD researchers.
Cephalopods like octopuses, squids and cuttlefish are highly intelligent animals with complex nervous systems. In Science Advances, a team led by Nikolaus Rajewsky of the Max Delbrück Center has now shown that their evolution is linked to a dramatic expansion of their microRNA repertoire.
When cycling across the Bryggebroen bridge at Fisketorvet, you see three concrete sculptures emerging from the water surface in the inner harbor of Copenhagen. But it is actually only when you get under water that the work of art really begins to come to life. Here you can see that the sculptures are filled with cracks that will eventually become a habitat for seaweed and fish.
Dr. Ma Qun from the Institute of Applied Ecology of the Chinese Academy of Sciences and his collaborators have investigated the spatial pattern of belowground bud banks along grasslands of northern China. The study was published in Land Degradation & Development.
The abstract notion that the whole can be found in each part of something has for long fascinated thinkers engaged in all walks of philosophy and experimental science, from Immanuel Kant on the essence of time to David Bohm on the notion of order, and from the self-similarity of fractal structures to the defining properties of holograms.
NASA's Space Launch System roared off the launchpad at Kennedy Space Center and into the record books, for now.
A team of university researchers have found that football crowds are influencing referees' behavior in the top four professional Leagues in England.
Mosquitoes inhabit various world regions, with more than 3,000 species already identified. Some of these are transmission vectors of several diseases, such as malaria, yellow fever, or dengue. According to the World Health Organization, 627,000 people died of malaria in 2020.
Get those Kleenex ready. You'll never again see robots as just lurching, whirring, beeping hunks of metal.
Plastic or cardboard? Single-use or reusable? The question on which type of packaging is the more sustainable solution is not an easy one to answer.
Waste slags from the metallurgy industries often contain valuable materials, but in very small concentrations. This means that large areas of valuable land are used to accommodate reservoirs filled with what is sometimes toxic waste. We now want to use hydrogen to convert this waste into a resource.
As California awakens to the worsening risk of extreme climate events, researchers are shedding new light on last year's anomalous and extreme Pacific Northwest heat wave. One study published this week said such heat waves could become 20 times more likely to occur if current carbon emissions continue unabated. Another said they may also be nearly 10 degrees hotter.
School closures due to the COVID-19 pandemic affected learning to varying degrees in different countries. A new study sheds light on what this learning loss will mean for countries' human capital in the decades to come.
Changing what we farm, and where, could provide all New Zealanders with a healthy diet with benefits to our water, climate, and the national economy, finds new research from two National Science Challenges.
A new study finds that bird species with extreme or uncommon combinations of traits face the highest risk of extinction.
Researchers successfully conducted a room-temperature continuous-wave lasing of a deep-ultraviolet laser diode (wavelengths down to the UV-C region).
With the help of an AI, researchers have succeeded in designing synthetic DNA that controls the cells' protein production. The technology can contribute to the development and production of vaccines, drugs for severe diseases, as well as alternative food proteins much faster and at significantly lower costs than today.
Researchers have designed cancer-fighting nanoparticles that co-deliver a chemotherapy drug and a novel immunotherapy, according to a new study.
According to a new study, fossils of a tiny sea creature with a delicately preserved nervous system solve a century-old debate over how the brain evolved in arthropods, the most species-rich group in the animal kingdom. Combining detailed anatomical studies of the fossilized nervous system with analyses of gene expression patterns in living descendants, they conclude that a shared blueprint of...
Regular table sugar can help to deposit microchips on new and unconventional surfaces, a researcher has shown in a new article.
A light-activated catalyst efficiently converts ammonia into clean-burning hydrogen using only inexpensive raw materials.
A new study of thousands of people reveals a wide range in the amount of water people consume around the globe and over their lifespans, definitively spilling the oft-repeated idea that eight, 8-ounce glasses meet the human body's daily needs. Differences in environment, body composition and activity level contribute to daily water turnover of as little as 1 liter and as much as 10 liters.
Researchers have shown -- for the first time -- that less intensively managed British grazed grasslands have on average 50% more plant species and better soil health than intensively managed grassland. The new study could help farmers increase both biodiversity and soil health, including the amount of carbon in the soil of the British countryside.
Earth is about 29% land and 71% oceans. How significant is that mix for habitability? What does it tell us about exoplanet habitability?
A research team has demonstrated that, in a population of macaque monkeys, females with a higher social status had younger, more resilient molecular profiles, providing a key link between the social environment and healthy brains.
A team of researchers with the Yellowstone Wolf Project at the Yellowstone Center for Resources, in Yellowstone National Park, in Wyoming, has found that wolves in the park who become infected with Toxoplasma gondii, a common parasite, are much more likely to become leaders of their pack. In their study, reported in the journal Communications Biology, the group analyzed data from studies of the...
The Correctional Service of Canada (CSC) recently ended its longstanding relationship with the meatpacking company, Wallace Beef.
The Very Large Telescope (VLT) at Cerro Paranal in northern Chile, is undoubtedly one of the premier ground-based observatories. But a new infrared instrument recently installed on the telescope has made the VLT even better.
The Plant Physiology and Biochemistry research team at the University of Konstanz has discovered previously unknown molecular mechanisms by which plants adapt to their environment—important basic knowledge in times of climate change
As UN climate talks close in Egypt and biodiversity talks begin in Montreal, attention is on forest restoration as a solution to the twin issues roiling our planet. Forests soak up atmospheric carbon dioxide and simultaneously create habitat for organisms. So far, efforts to help forests bounce back from deforestation have typically focused on increasing one thing—trees—over anything else.
An international team of astronomers has conducted a double-telescopic study of the zone where the Wow! signal originated and failed to detect any signal. In their paper published in Research Notes of the American Astronomical Society, the group describes their study and what they learned from it.
Fertilization of an egg by sperm is the beginning of new life. The maternal and paternal genetic information, that collectively store the body plan of the living being, are combined after fertilization.
The vast majority of vertebrate species living today, including humans, belong to the jawed vertebrate group. The development of articulating jaws during vertebrate evolution was one of the most significant evolutionary transitions from jawless to jawed vertebrates, taking place at least 423 million years ago. The lower and upper jaws were initially connected by the primary jaw joint. However,...
Global assessments of historical oyster reef distribution have estimated that over 85% of oyster reefs have been lost to overfishing and coastal development. In recent decades, enormous effort has been put into developing and implementing different methods for restoring oyster reefs globally.
Delegates at a global summit on trade in endangered species on Friday approved a plan to protect 54 more shark species, a move that could drastically reduce the lucrative and cruel shark fin trade.
Researchers from the University of St Andrews have shown for the first time that not only do wild chimpanzees tend to look like their family members, but also some relationships are easier to detect than others.
For anyone with arachnophobia, the only thing worse than finding a lone spider dangling in a doorway or resting on your rear-view mirror is finding a whole cluster.
On Friday, November 18, a test using collisions of lead ions was carried out in the Large Hadron Collider (LHC) and provided an opportunity for the experiments to validate the new detectors and new data-processing systems ahead of next year's lead-lead physics run.
A look at history often provides some context for the present and might even inform the future, so it's not surprising two Penn State faculty members' review of Cold War-era print and television advertisements about flying saucers and UFOs prompted some themes—and one overarching business reality—that informs television and internet ads these days.
Andrew Nelson studies bioarchaeology, in part, because it allows him to understand how people lived thousands of years ago. And while he has traveled the world investigating ancient mummies, his latest adventure with King Tut is one for the ages.
A proposed measure in Switzerland would have made that country the first to ban medical and scientific experimentation on animals. It failed to pass in February 2022, with only 21% of voters in favor. Yet globally, including in the United States, there is concern about whether animal research is ethical.
Nurseries for new planets, protostellar disks are oblate swathes of gas and dust that rotate about newly formed stars. The Earth and the other planets in the solar system were birthed from such a disk.
Low-traffic neighborhoods (LTNs) reduce traffic and air pollution without displacing the problem to nearby streets, new research has shown.
Researchers from the Quadram Institute and the University of East Anglia have uncovered how resistance has helped drive the emergence of dominant strains of Salmonella. In addition to antimicrobial resistance, resistance to bacteriophages may give these bugs a boost, in the short-term at least.
Widespread corruption is preventing Asian countries from effectively implementing measures to reduce carbon dioxide (CO2) emissions that are known to contribute to global warming, new research suggests.
Ocean warming and ocean acidification driven by climate change decrease the nutritional quality of some marine organisms, causing disruptions to the ocean food web.