The hammerhead sharks are a group of sharks that form the family Sphyrnidae, so named for the unusual and distinctive structure of their heads, which are flattened and laterally extended into a “hammer” shape called a cephalofoil.
Category Archives: Science
TOP JOURNALS: RESEARCH HIGHLIGHTS FROM SCIENCE MAGAZINE (APRIL 30, 2021)
Science Podcast: Storing Wind As Gravity Batteries, Donkeys Digging Wells
Contributing Correspondent Cathleen O’Grady joins host Sarah Crespi to talk about a company that stores renewable energy by hoisting large objects in massive “gravity batteries.”
Also on this week’s show, Erick Lundgren, a postdoctoral researcher at Aarhus University, talks about how water from wells dug by wild horses and feral donkeys provides a buffer to all different kinds of animals and plants during the driest times in the Sonora and Mojave deserts.
Theorectical Physics: The ‘Constructor Theory’ Of Oxford’s Chiara Marletto
“Declaring something impossible leads to more things being possible,” writes the physicist Chiara Marletto. “Bizarre as it may seem, it is commonplace in quantum physics.”
Chiara Marletto is trying to build a master theory — a set of ideas so fundamental that all other theories would spring from it. Her first step: Invoke the impossible.
Constructor Theory is a new approach to formulating fundamental laws in physics. Instead of describing the world in terms of trajectories, initial conditions and dynamical laws, in constructor theory laws are about which physical transformations are possible and which are impossible, and why. This powerful switch has the potential to bring all sorts of interesting fields, currently regarded as inherently approximative, into fundamental physics. These include the theories of information, knowledge, thermodynamics, and life.
Read more about Marletto and David Deutsch’s constructor theory at Quanta Magazine: https://www.quantamagazine.org/how-to…
Medicine: ‘How Vaccines Actually Work’ (Video)
Vaccines are medicines that train the body to defend itself against future disease, and they have been saving human lives for hundreds of years. Vaccines are medicines that train the body to defend itself against future disease.
Science Podcast: How Brain Cells Use Energy, Lobster Bellies & Red Meat
Ultra-precise measurements connect brain activity and energy use in individual fruit-fly neurons.
In this episode:
00:45 How brain cells use energy
A team of researchers have looked in individual fruit-fly neurons to better understand how energy use and information processing are linked – which may have important implications for future fMRI studies in humans.
Research Article: Mann et al.
07:04 Research Highlights
A tough but flexible material inspired by lobster underbellies, and research reveals that red meat consumption hasn’t dropped since the 1960s.
Research Highlight: Material mimicking lobster belly cracks the code for toughness
Research Highlight: Meat lovers worldwide pay climate little heed
10:15 Briefing Chat
We discuss some highlights from the Nature Briefing. This time, early results for a new malaria vaccine look positive, and researchers unearth the latest chapter in a long-running plant experiment.
Nature News: Malaria vaccine shows promise — now come tougher trials
BBC News: Malaria vaccine hailed as potential breakthrough
New York Times: One of the World’s Oldest Science Experiments Comes Up From the Dirt
Science: Salt Water Evaporation Creates “Crystal Critters’ (MIT)
A team of MIT researchers have observed that when salty water evaporates from a heated, superhydrophobic surface the crystal structures that form can easily be removed or roll away on their own.
This phenomenon could make it possible to use brackish or salty water, without any pretreatment, rather than relying on freshwater sources, for cooling systems in power plants.
Future Driving: Wireless Electric Vehicle Charging
Cornell is pioneering an innovative approach for the wireless charging of electric vehicles, forklifts and other mobile machines, while they remain in motion.
Covid-19 Infographic: The Different Vaccine Types
Analysis: How Do Video Games, Smartphones & Computers Affect Brains
Smartphones, computers, gaming consoles or digital tablets are now givens in our daily lives. The electronic intrusion is causing controversy and collective hysteria. This documentary asks: Are we damaging our brains with all these screens? How will unprecedented exposure to screens impact humanity?
To find out, the filmmakers examine how science has been applied to distinguish between truth and falsehoods, and explore the suspected side-effects of screen exposure. The documentary travels through the US and Europe to meet and speak to researchers who are leaders in this field.
Boomers Daily 