Scientists have created a synthetic stingray that’s propelled by living muscle cells and controlled by light, a team reports Thursday in the journal Science.
And it should be possible to build an artificial heart using some of the same techniques, the researchers say.
Continue reading “Video: Scientists Create Artificial Stingray From Rat Cells” »
This is from 2014 but is getting posted around the past couple of days.
““It’s estimated that we’re born with around 20,000 blood stem cells, and at any one time, around 1000 are simultaneously active to replenish blood,” says Holstege. During life, the number of active stem cells shrinks, she says, and their telomeres shorten to the point at which they die –”
She lived to 115, but a study of Hendrikje van Andel-Schipper’s blood hints at factors limiting lifespan.
Continue reading “Blood of world’s oldest woman hints at limits of life” »
Amazing!! More time to learn, evolve, love, & explore the world…
A sprawling facility called Timeship in Texas will host 50,000 frozen dead people with one goal — to become the human race’s first immortals.
Activist Saul Kent — one of the minds behind it — is such a passionate believer in ‘cryogenics’ that he froze his own mother’s head in 1988 after her death.
Continue reading “How To Become Immortal — By The People Who Think You Can” »
Micron sized onchip making printing and communication faster.
Researchers designed subwavelength micro-disk lasers (MDLs) as small as 1μm in diameter on exact (001) silicon, using colloidal lithography (dispersing silica colloidal beads as hard masks before etching the prepared QD material layers). Micron sized lasers are 1,000 times shorter in length, and 1 million times smaller than current onchip lasers.
A group of scientists from Hong Kong University of Science and Technology; the University of California, Santa Barbara; Sandia National Laboratories and Harvard University were able to fabricate tiny lasers directly on silicon — a huge breakthrough for the semiconductor industry and well beyond.
Graphene, a two-dimensional wonder-material composed of a single layer of carbon atoms linked in a hexagonal chicken-wire pattern, has attracted intense interest for its phenomenal ability to conduct electricity. Now University of Illinois at Chicago researchers have used rod-shaped bacteria — precisely aligned in an electric field, then vacuum-shrunk under a graphene sheet — to introduce nanoscale ripples in the material, causing it to conduct electrons differently in perpendicular directions.
The resulting material, sort of a graphene nano-corduroy, can be applied to a silicon chip and may add to graphene’s almost limitless potential in electronics and nanotechnology. The finding is reported in the journal ACS Nano.
“The current across the graphene wrinkles is less than the current along them,” says Vikas Berry, associate professor and interim head of chemical engineering at UIC, who led the research.
NEW DELHI — Russia has offered its nuclear aircraft carrier, dubbed “Storm,” to India for purchase, a senior Indian Navy official said. The offer comes as India and the US discuss the transfer of technology for India’s future nuclear aircraft carrier, the INS Vishal.
A diplomat with the Russian Embassy confirmed that a Russian team visiting India last week made the offer.
Krylov State Research Center (KSRC), a Russian shipbuilding research and development institute, is designing the carrier, also known as Shtorm or Project 23000E.
Continue reading “Russia Offers India Nuclear Aircraft Carrier” »
Stable nanomagnets that ultimately improves data storage on the smallest of devices.
Abstract: So-called “zero-point energy” is a term familiar to some cinema lovers or series fans; in the fictional world of animated films such as “The Incredibles” or the TV series “Stargate Atlantis”, it denotes a powerful and virtually inexhaustible energy source. Whether it could ever be used as such is arguable. Scientists at Jülich have now found out that it plays an important role in the stability of nanomagnets. These are of great technical interest for the magnetic storage of data, but so far have never been sufficiently stable. Researchers are now pointing the way to making it possible to produce nanomagnets with low zero-point energy and thus a higher degree of stability (Nano Letters, DOI: 10.1021/acs.nanolett.6b01344).
Since the 1970s, the number of components in computer chips has doubled every one to two years, their size diminishing. This development has made the production of small, powerful computers such as smart phones possible for the first time. In the meantime, many components are only about as big as a virus and the miniaturization process has slowed down. This is because below approximately a nanometre, a billionth of a meter in size, quantum effects come into play. They make it harder, for example, to stabilise magnetic moments. Researchers worldwide are looking for suitable materials for magnetically stable nanomagnets so that data can be stored safely in the smallest of spaces.
