Lifeboat Foundation

Spinels are oxides with chemical formulas of the type AB₂O₄, where A is a divalent metal cation (positive ion), B is a trivalent metal cation, and O is oxygen. Spinels are valued for their beauty, which derives from the molecules’ spatial configurations, but spinels in which the trivalent cation B consists of the element chrome (Cr) are interesting for a reason that has nothing to do with aesthetics: They have magnetic properties with an abundance of potential technological applications, including gas sensors, drug carriers, data storage media, and components of telecommunications systems.

A study by Brazilian and Indian researchers investigated a peculiar kind of spinel: zinc-doped manganese chromite. Nanoparticles of this material, described by the formula Mn_0.5 Zn_0.5 Cr₂O₄ [where manganese (Mn) and zinc (Zn) compose the A-site divalent cation], were synthesized in the laboratory and characterized by calculations based on density functional theory (DFT), a method derived from quantum mechanics that is used in solid-state physics and chemistry to resolve complex crystal structures.

The material’s structural, electronic, vibrational and magnetic properties were determined by X-ray diffraction, neutron diffraction, X-ray photoelectron spectroscopy and Raman spectroscopy. A report of the study has been published in the Journal of Magnetism and Magnetic Materials with the title “Structural, electronic, vibrational and magnetic properties of Zn2+ substituted MnCr2O4 nanoparticles.”

Circa 2018

We propose that fungi Basidiomycetes can be used as computing devices: information is represented by spikes of electrical activity, a computation is implemented in a mycelium network and an interface is realized via fruit bodies. In a series of scoping experiments, we demonstrate that electrical activity recorded on fruits might act as a reliable indicator of the fungi’s response to thermal and chemical stimulation. A stimulation of a fruit is reflected in changes of electrical activity of other fruits of a cluster, i.e. there is distant information transfer between fungal fruit bodies. In an automaton model of a fungal computer, we show how to implement computation with fungi and demonstrate that a structure of logical functions computed is determined by mycelium geometry.

The fungi are the largest, widely distributed and oldest group of living organisms [1]. The smallest fungi are microscopic single cells. The largest mycelium belongs to Armillaria bulbosa, which occupies 15 hectares and weights 10 tons [2], and the largest fruit body belongs to Fomitiporia ellipsoidea, which at 20 years old is 11 m long, 80 cm wide, 5 cm thick and has an estimated weight of nearly half-a-ton [3]. During the last decade, we produced nearly 40 prototypes of sensing and computing devices from the slime mould Physarum polycephalum [4], including the shortest path finders, computational geometry processors, hybrid electronic devices, see the compilation of the latest results in [5].

This is what it took to become a sub hunter tasked with protecting America’s carrier battle groups at the twilight of the Cold War.

https://www.youtube.com/watch?v=wQSYdAX_9JY&feature=share

TRANSCRIPT AND MP3: www.corbettreport.com/gates

Who is Bill Gates? A software developer? A businessman? A philanthropist? A global health expert? This question, once merely academic, is becoming a very real question for those who are beginning to realize that Gates’ unimaginable wealth has been used to gain control over every corner of the fields of public health, medical research and vaccine development. And now that we are presented with the very problem that Gates has been talking about for years, we will soon find that this software developer with no medical training is going to leverage that wealth into control over the fates of billions of people.

Australian scientists work with medicine that can kill COVID-19 in 48 hours59.

“En tiempos en los que estamos teniendo una pandemia global y no hay un tratamiento aprobado, si tuviéramos un compuesto que ya estuviera disponible en todo el mundo, eso podría ayudar a la gente antes. Siendo realistas –consideró la investigadora-, pasará un tiempo antes de que una vacuna esté ampliamente disponible”.

Aunque no se conoce el mecanismo por el que la ivermectina actúa en el coronavirus, teniendo en cuenta su acción en otros virus, “es probable que funcione para detener la capacidad del virus de ‘amortiguar’ la capacidad de las células anfitrionas para eliminarlo”, dijo Wagstaff.

Continue reading “Científicos australianos trabajan con medicamento que puede matar al COVID-19 en 48 horas” »

Huawei and Alibaba among tech giants pouring money into development.

PETER GUEST, Nikkei staff writer May 05, 2020 13:05 JST.

Since Robert Hooke’s first description of a cell in Micrographia 350 years ago, microscopy has played an important role in understanding the rules of life.

However, the smallest resolvable feature, the resolution, is restricted by the wave nature of light. This century-old barrier has restricted understanding of cellular functions, interactions and dynamics, particularly at the sub-micron to nanometer scale.

Continue reading “Imaging technology allows visualization of nanoscale structures inside whole cells” »

The SpaceX Crew Dragon trunk was secured to the spacecraft on Thursday, April 30, at Cape Canaveral Air Force Station, Florida, in preparation for launch of NASAfs SpaceX Demo-2 mission.

NASA astronauts Robert Behnken and Douglas Hurley will fly to the International Space Station aboard the Crew Dragon spacecraft launched atop a Falcon 9 rocket. Liftoff from Kennedy Space Center’s Launch Complex 39A is slated for May 27 at 4:32 p.m. EDT.

Demo-2 will serve as an end-to-end test of SpaceX’s crew transportation system, paving the way for NASA to certify the system for regular crewed flights to the orbiting laboratory as a part of NASA’s Commercial Crew Program. NASA’s SpaceX Demo-2 mission will be the first crewed flight to launch from U.S. soil since the conclusion of the Space Shuttle Program in 2011.

Zeno’s paradox stumped philosophers, mathematicians, and intellectuals for millennia. It took physics to finally solve it.