Lifeboat Foundation

But can brain scans really answer these questions? Many scientists are now rethinking the value of brain scan research and whether its findings are true.

Brain scan studies have been criticized for several things. Criticisms include using too few subjects and incorrectly reading results.

Researchers have also come to understand that a person’s brain scan results can be different from day to day, even when all the conditions stay the same. Now they admit that brain scan findings are limited. Some are studying these limitations. Others are using different methods to study the brain.

Microsoft co-founder Bill Gates believes a return to “normal” life is further down the road for the US than people expect, despite a Covid-19 vaccine being approved and distributed this week.

Conceding that by the summer of 2021, the US should be “way closer to normal than we are now,” Gates, who has donated millions to vaccination efforts through his foundation, believes a full return to normal will likely not be possible until after 2022.

Continue reading “Bill Gates says bars and restaurants should ‘sadly’ be closed for 4-6 months, no return to ‘normal’ until 2022” »

Researchers have observed three-dimensional magnetic vortex rings in a real-world magnetic material for the first time. Contrary to theoretical predictions, these rings – which are spin configurations within the material’s bulk – are remarkably stable and could move through the material like smoke rings move through air. If such movement can be controlled, they might have applications in energy-efficient 3D data storage and processing.

In a ferromagnetic material, the spatial distribution of the local magnetization is responsible for the material’s magnetic properties. These spatial distributions can be very complex, and intricate magnetic “textures” are behind many modern technologies, including hard disk drives. A vortex is one such distribution, and it forms when the material’s magnetization circulates around a central core.

Vortex rings are more sophisticated still, and occur naturally in physical systems such as fluids, plasmas and turbulent gases in the Earth’s atmosphere. However, while they have long been predicted to exist in ferromagnets, they have never been observed there until now.

New technique could be useful for quantum information processing.

A new technique to cool reactive molecules to temperatures low enough to achieve quantum degeneracy – something not generally possible before – has been created by researchers in the US. In this temperature regime, the dominance of quantum effects over thermal fluctuations should allow researchers to study new quantum properties of molecules. As a first example, the researchers demonstrated how a slight change in applied electric field can alter the reaction rate between molecules by three orders of magnitude. The researchers hope their platform will enable further exploration of molecular quantum degeneracy, with potential applications ranging from quantum many body physics to quantum information processing.

When atoms are cooled close to absolute zero, the blur created by thermal effects that govern their behaviour in the classical world around us is removed, making their quantum nature clear. This has led to some fascinating discoveries. In ultracold quantum bosonic or fermion-pair quantum gases, for example, all the atoms in a trap can simultaneously occupy the quantum ground state, resulting in a wavefunction that is macroscopic.

Continue reading “Physicists fine tune chemical reaction rates for ultracold molecules” »

Microsoft’s new write-once storage medium is constructed from quartz glass, stores data using lasers, and uses machine learning algorithms for decoding.

“What our technology does is it improves range and lowers vehicle cost,” Campbell said. “It’s as simple as that.”

As the name of his company suggests, Campbell thinks the key is a more-solid electric car battery. The lithium-ion batteries powering almost all of today’s electric vehicles rely on a liquid electrolyte, which ferries charged ions from a cathode to an anode. While the technology makes it practical to charge and recharge, the liquid can catch fire if overloaded.

For decades, scientists have seen a potential answer in solid electrolytes, which could allow a battery to soak up more energy without overheating.

Like the previous total solar eclipse in 2019, the Dec. 14, 2020 event will happen over the Southern Cone of South America.

When one mentions the topic of “head transplantation” (or a related topic – the “brain transplant”), for most people, it remains a topic purely in the context and sphere of science fiction.

Yet most people are unaware of the following history:

Continue reading “Dr. Ren Xiaoping — Pushing Surgical Boundaries — Head Transplantation (Cephalosomatic Anastomosis)” »

The idea that mass extinctions allow many new types of species to evolve is a central concept in evolution, but a new study using artificial intelligence to examine the fossil record finds this is rarely true, and there must be another explanation.

Charles Darwin’s landmark opus, On the Origin of the Species, ends with a beautiful summary of his theory of evolution, “There is a grandeur in this view of life, with its several powers, having been originally breathed into a few forms or into one; and that, whilst this planet has gone cycling on according to the fixed law of gravity, from so simple a beginning endless forms most beautiful and most wonderful have been, and are being, evolved.”

In fact, scientists now know that most species that have ever existed are extinct. This extinction of species has on the whole been roughly balanced by the origination of new ones over Earth’s history, with a few major temporary imbalances scientists call mass extinction events. Scientists have long believed that mass extinctions create productive periods of species evolution, or “radiations,” a model called “creative destruction.” A new study led by scientists affiliated with the Earth-Life Science Institute (ELSI) at Tokyo Institute of Technology used machine learning to examine the co-occurrence of fossil species and found that radiations and extinctions are rarely connected, and thus mass extinctions likely rarely cause radiations of a comparable scale.