Lifeboat Foundation

The trouble starts when they attempt to beam up from a planet during an ion storm. Something goes wrong. They appear aboard the Enterprise, but things are askew: Crew members greet the captain with Nazi-style salutes, and First Officer Spock sports a goatee. Observing these small but significant differences, Kirk muses that the crew has materialized in “a parallel universe coexisting with ours on another dimensional plane.”

These days, one parallel universe is hardly enough for science fiction. Instead, it seems the entire multiverse is having its Hollywood moment. Films like Doctor Strange in the Multiverse of Madness and Everything Everywhere All at Once entice the viewer with multiple versions of various characters and a dizzying array of alternate realities. Though they’re not particularly heavy on the physics, these films are definitely latching onto something. The idea of the multiverse — the provocative notion that our universe is just one of many— has fully cemented itself in mainstream pop culture. (Or, at least, in the current phase of the Marvel Cinematic Universe.) Its appeal as a storytelling device is obvious. Just as time travel allowed Marty McFly to experience different timelines in the Back to the Future series, multiverse tales allow characters to explore a multitude of worlds with varying degrees of similarity to our own, as well as altered versions of themselves.

While Hollywood can’t seem to get enough of the multiverse, it remains deeply controversial among scientists. Ask a prominent physicist whether they believe in a multitude of universes beyond our own, and you’ll get either a resounding yes or a vehement no, depending on whom you encounter. Advocates on the two sides show no mercy toward each other in their books, on their blogs, and, of course, on Twitter. But physicists didn’t pull the idea out of thin air — rather, several distinct lines of reasoning seem to point to the multiverse’s existence, bolstering the idea’s merit. Sabine Hossenfelder, a theoretical physicist at the Frankfurt Institute for Advanced Studies, has called the multiverse “the most controversial idea in physics.”

During an interview with BBC journalist Amol Rajan, Bill Gates argued against accusations he’s a hypocrite for using a personal private jet while also investing in climate change solutions.

On a cold winter day, the warmth of the sun is welcome. Yet as humanity emits more and more greenhouse gases, the Earth’s atmosphere traps more and more of the sun’s energy and steadily increases the Earth’s temperature. One strategy for reversing this trend is to intercept a fraction of sunlight before it reaches our planet. For decades, scientists have considered using screens, objects or dust particles to block just enough of the sun’s radiation—between 1 or 2%—to mitigate the effects of global warming.

A University of Utah-led study explored the potential of using dust to shield sunlight. They analyzed different properties of dust particles, quantities of dust and the orbits that would be best suited for shading Earth. The authors found that launching dust from Earth to a way station at the “Lagrange Point” between Earth and the sun (L1) would be most effective but would require astronomical cost and effort. An alternative is to use moondust. The authors argue that launching lunar dust from the moon instead could be a cheap and effective way to shade the Earth.

Continue reading “Space dust as Earth’s sun shield” »

Observations of galaxy growth can be explained if the black holes at their centre contain dark energy, pointing to a possible role in the universe’s expansion.

Massive black holes could be the source of dark energy and the accelerating expansion of the universe, according to observations of ancient, dormant galaxies with black holes at their centre.

The laws of physics suggest that gravity should cause the universe to contract, but a mysterious force, which physicists call dark energy, seems to be counteracting this and making the universe expand at an accelerating rate.

This February sees the launch of Collision: Stories from the science of CERN, the culmination of a unique, two-year-long collaboration between fiction writers and pioneering physicists.

As part of Comma’s Science-into-Fiction series, the project paired award-winning UK writers with leading physicists and engineers working at CERN, to explore different aspects of CERN’s research, as well as its historical legacies, through fiction and accompanying essays (or afterwords) by the scientists.

The project began in the Summer of 2021 when particle physicists connected to CERN around the world were invited to be part of a new European-wide public engagement project. Over 150 topic submissions from scientists working on different aspects of science were received. Writers were then invited to respond to the list of ideas and were paired with the physicists whose ideas inspired them. We were overwhelmed with positive responses.

Three years into the pandemic, the immune systems of the vast majority of humans have learnt to recognize SARS-CoV-2 through vaccination, infection or, in many cases, both. But just how quickly do these types of immunity fade?

New evidence suggests that ‘hybrid’ immunity, the result of both vaccination and a bout of COVID-19, can provide partial protection against reinfection for at least eight months¹. It also offers greater than 95% protection against severe disease or hospitalization for between six months and a year after an infection or vaccination, according to estimates from a meta-analysis². Immunity acquired by booster vaccination alone seems to fade somewhat faster.

But the durability of immunity is much more complex than the numbers suggest. How long the immune system can fend off SARS-CoV-2 infection depends not only on how much immunity wanes over time but also on how well immune cells recognize their target. “And that has more to do with the virus and how much it mutates,” says Deepta Bhattacharya, an immunologist at the University of Arizona College of Medicine in Tucson. If a new variant finds ways to escape the existing immune response, then even a recent infection might not guarantee protection.

Get the most up-to-date outbreak information here.

As technology will progress robots will become cheaper.in future healthcare robots can be available at v less cost.then we can gift these robots to our bedridden friends and relatives.

A nurse-assisting robot named Moxi has been working with clinical staff on the neurology unit at Texas Health Presbyterian Hospital Dallas. During the month-long trial, Moxi helped with fetch-and-gather tasks such as delivering admissions kits, lab specimens and picking up and dropping off linen bags. Texas Health Dallas is the first hospital in the country to deploy Moxi. The robot was designed to provide clinical staff more time to focus on patient care.

Continue reading “Moxi the Robot — Texas Health Resources” »

The discovery of gravitational waves (GWs) in the system has shown that this prediction made by Einstein 107 years ago is true. The findings also resulted in a revolution in the world of astronomy.

What Are Gravitational Waves?

Continue reading “Einstein’s 107-year-old Theory on Gravitational Waves Is True; What Are These Forces of the Universe?” »