Researchers created a groundbreaking solar panel system that could increase the total amount of clean energy solar panels can generate.
Solar energy is a promising energy source that is significantly cleaner than traditional dirty fuels. However, current solar panels often require high-temperature manufacturing processes that generate significant amounts of carbon. On top of that, traditional solar panels absorb only small portions of infrared and ultraviolet light, meaning chunks of sunlight don’t get converted into usable energy.
Researchers created a new solar panel system to address these challenges. In a recent study published in Nature, a team of scientists combined perovskite and organic solar cells, two emerging solar technologies, to create what they call a “tandem solar cell” that can absorb a wide spectrum of sunlight.
Optical metrology has long relied on interference principles, but a recent review highlights how orbital angular momentum (OAM) is redefining the field.
By integrating OAM into metrological tools, researchers are now capable of tracking motion in all directions, including rotational dynamics.
Advancing Optical Metrology with Orbital Angular Momentum.
The latest AI News. Learn about LLMs, Gen AI and get ready for the rollout of AGI. Wes Roth covers the latest happenings in the world of OpenAI, Google, Anthropic, NVIDIA and Open Source AI.
For decades, scientists have been trying to develop therapeutics for people living with Alzheimer’s disease, a progressive neurodegenerative disease that is characterized by cognitive decline. Given the global rise in cases, the stakes are high. A study published in The Lancet Public Health reports that the number of adults living with dementia worldwide is expected to nearly triple, to 153 million in 2050. Alzheimer’s disease is a dominant form of dementia, representing 60 to 70 percent of cases.
Recent approvals by the Food and Drug Administration have focused on medications that shrink the sticky brain deposits of a protein called amyloid beta. The errant growth of this protein is responsible for triggering an increase in tangled threads of another protein called tau and the development of Alzheimer’s disease — at least according to the dominant amyloid cascade hypothesis, which was first proposed in 1991.
Over the past few years, however, data and drugs associated with the hypothesis have been mired in various controversies relating to data integrity, regulatory approval, and drug safety. Nevertheless, the hypothesis still dominates research and drug development. According to Science, in fiscal year 2021 to 2022, the National Institutes of Health spent some $1.6 billion on projects that mention amyloids, about 50 percent of the agency’s overall Alzheimer’s funding. And a close look at the data for recently approved drugs suggests the hypothesis is not wrong, so much as incomplete.
A 25-year-old woman in China has had her Type 1 diabetes reversed through a groundbreaking new stem cell therapy treatment! As you can imagine, this represents a historic turning point in medical history. This revolutionary procedure has enabled her to create insulin on her own, relieving her of the constant daily hassle of injections. When this breakthrough eventually goes public, it will provide hope to millions worldwide dealing with this chronic condition.
According to Medlineplus, type 1 diabetes is classified as an autoimmune disorder in which the immune system erroneously attacks beta cells in the pancreas that produce insulin. Without insulin, your blood sugar levels can become dangerously elevated, leading to long-term damage to your vital organs. Managing this illness has generally required lifetime insulin therapy, which usually involves numerous daily injections or using insulin pumps. However, despite all of these measures, patients still face the risk of complications such as kidney damage, heart disease, and nerve issues.
This procedure involves extracting the patient’s adipose (fat) cells and reprogramming them into pluripotent stem cells. These adaptable cells have the amazing ability to develop into practically any kind of cell in the body. Scientists meticulously turned them into insulin-producing islet cells that resembled those damaged during the autoimmune onslaught. These new cells were then transplanted into the patient’s abdomen muscles and started to function as a biological insulin pump! The success of this technique is due to its individualized approach. The use of the patient’s own cells considerably reduces the likelihood of immune system rejection. Additionally, this circumvents the necessity for lifelong immunosuppressive medicines, typically prescribed for organ or cell transplants but present their own complications.
Three leading engineers discuss the impact of the AI revolution. Click here to subscribe to our channel 👉🏽 https://bbc.in/3VyyriMIntelligent machines are re…
The vast distances between stars make interstellar travel one of humanity’s most daunting challenges. Even the Voyager spacecrafts, now in interstellar space, would take tens of thousands of years to reach the nearest star, Alpha Centauri. To put this into perspective, Alpha Centauri is 277,000 astronomical units (AU) away—over 7,000 times the distance from Earth to Pluto. At current spacecraft speeds, a journey to our stellar neighbor would take an unimaginable 70,000 years. However, new ideas like the Sunbeam Mission offer a promising path forward, proposing innovative propulsion techniques that could shorten this timeline to mere decades.
The Sunbeam Mission centers around relativistic electron beam propulsion, where high-energy electron beams, accelerated close to the speed of light, push a spacecraft forward. This approach eliminates the need for onboard fuel, reducing the spacecraft’s mass and enabling greater acceleration. A stationary satellite, or statite, positioned near the Sun, would generate these electron beams by converting solar energy into electricity. Using materials and technologies like those developed for NASA’s Parker Solar Probe and European Space Agency’s Solar Orbiter, the statite could endure the Sun’s intense heat while directing the beam over vast distances. This could propel a spacecraft to 10% of the speed of light, allowing it to reach Alpha Centauri in about 40 years.
While the concept is ambitious, its challenges—like generating and maintaining the beam, energy conversion, spacecraft navigation, material durability, and beam focus—are not insurmountable. Current technologies, such as the Large Hadron Collider, high-temperature solar converters, and advanced heat-resistant materials, provide a foundation for overcoming these hurdles. Innovations in adaptive optics and laser communication systems also offer insights into managing beam precision over interstellar distances, demonstrating how existing advancements could be adapted for this revolutionary mission.
Why it’s awesome: These scavenger birds have an unexpected way of keeping predators away — by projectile vomiting stomach acid and semi-digested meat at their attackers.
Turkey vultures live in a range of habitats, including subtropical forests, shrublands and deserts. They have bald heads so that when they feast on carcasses, blood and guts don’t get trapped in their feathers.
