En pleine expansion, le marché des nanosatellites aiguise les appétits des fabricants de petits lanceurs. Les coûts de mise en orbite réduisent, ce qui donne naissance à une longue traîne de start-up, tant dans le secteur des lanceurs que dans celui des nanosatellites. La démocratisation de l'espace prend son envol.
For the first time, scientists have shown that it’s possible for two people of the same sex to create a baby, without the need for outside egg or sperm donation. The most obvious benefits would be for homosexual couples who want to have a child...
Dans un monde où les nouvelles technologies et la robotique sont de plus en plus présentes dans notre quotidien, l'univers de la science-fiction fascine plus que jamais petits et grands. D'ailleurs, un britannique a réalisé un grand pas en avant pour la science en devenan
Intel dévoile son robot en kit Jimmy, un robot humanoïde connecté et open-source vendu à moins de 1200€ car il peut être imprimé en 3D par l’utilisateur directement chez lui.
A l’occasion du Web2Day 2014, nous nous faisions l’écho du message qu’était venu porter Anthony Charbonnier d’Intel à Nantes sur les intentions de la firme américaine basée à Santa Clara (Californie) en matière de Wearable computing. Grâce à Edison (son mini-PC de la taille d’une carte SD), Intel ambitionne désormais de prendre pieds dans le monde de la robotique open-source avec Jimmy, son premier robot humanoïde, aux faux-airs de Nao, le robot français d’Aldebaran Robotics qui vient d’annoncer Pepper, un robot humanoïde connecté capable de cohabiter avec les humains
Science's editors have chosen cancer immunotherapy as Breakthrough of the Year for 2013, a strategy that harnesses the body's immune system to combat tumors. It's an attractive idea, and researchers have struggled for decades to make it work. ...
VideoGoogle is without question one of the most innovative companies on the planet. It’s a company that is known mostly for its amazingly successful search and advertising businesses, and will probably be known for this for the foreseeable future. But lately it’s also quickly becoming known for its rather unorthodox array [...]
A Video featuring a Fying Car prototype AeroMobil 3.0 incorporates significant improvements and upgrades. It is now being tested in real flight conditions since October 2014. Initially certified by the Slovak Federation of Ultra-Light Flying, it now entered a regular flight-testing program.
The latest form of genetic engineering can give human cells a rare mutation that keeps them HIV-free.
Take a hot new method that's opened up a new era of genetic engineering, apply it to the wonder stem cells that in 2012 won their discoverer a Nobel prize, and you might just have a tool to cure HIV infection. That's the hope of researchers led by Yuet Kan of the University of California, San Francisco – and they have proved the basic principle, altering the genome of induced pluripotent stem cells (iPSCs) to give them a rare natural mutation that allows some people to resist HIV.
Kan's work relies on "genome editing" – snipping out a particular DNA sequence and replacing it with another. It's much more precise than traditional forms of genetic engineering, in which sequences are added to the genome at random locations.
To alter the stem cells, Kan's team turned to the CRISPR-Cas9 system, asuper-efficient method of genome editing based on an ancient bacterial "immune system". In bacteria, the system takes fragments of DNA from invading viruses and splices them into the cell's own DNA, where they act like "wanted" posters, allowing the viruses to be recognised and attacked in future.
About 1 per cent of people of European descent are resistant to HIV, because they carry two copies of a mutation in the gene for a protein called CCR5. The virus must lock onto this protein before it can invade white blood cells, and the mutations prevent it from doing so.
Using a bone marrow transplant from a naturally HIV-resistant person,Timothy Ray Brown was famously "cured" of HIV infection. Kan's goal is to achieve the same result without the need to find compatible HIV-resistant bone marrow donors – who are in vanishingly short supply.
It's fairly easy to make iPSCs from a person's cells, which then have the potential to grow into any type of cell in the body. So if iPSCs could be given two copies of the protective mutation, it should be possible to make personalised versions of the therapy that cleared HIV from Brown's body. Kan's team has now shown that CRISPR-Cas9 can efficiently make the necessary genome edit. As expected, white blood cells grown from these altered stem cells were resistant to HIV upon testing.
"It's a really fantastic application of the tool," says Philip Gregory, chief scientific officer with Sangamo BioSciences of Richmond, California. However, he warns that there is a long way to go before it can be turned into a practical therapy.
This is why IBM is investing $1 billion into Watson.
Besides winning "Jeopardy" and helping "put a permanent end to leukemia," IBM has found another use for its Watson supercomputer: psychoanalyzing people.
Watson is a computer that understands human language. Simply by looking at the language used when posting on social media sites, it can understand your personality and even predict major events likely to happen in your life.
Amazingly, this tech doesn't even have to know a company's customer's social media accounts beforehand. It can figure them out on its own by sifting through what people post online with information in a company database.
The first use that comes to mind for this is marketing. The Watson tech tries to figure out what's happening in a person's life from social media to predict when to send you offers. As Fast Co. Design's John Brownlee writes:
"It can even predict major life-events: if you changed your Facebook status to "Married" a year ago, for example, a company might infer that it was about time to start approaching you about products and services for your first child."
Have you bought your transcranial direct current stimulation (tDCS) head-set yet? You've heard of this, right? It's a device with electrodes that zap your brain through your skull, using mild electrical currents to make you smarter.The man in the picture above sports one of the first commercially available devices. Produced by Foc.us, it’s available for $249, and also comes in black. This technology is far from new – Roman physician Galen was on to something similar when he slapped electric fish on his patients’ heads. But tDCS is now in the process of going mainstream: there are DIY brain-zapping enthusiasts on YouTube; last year MTV editor Mary H K Choi wrote an amusing but inconclusive tDCS self-experimentation piece for Aeon; and just the other day, Oliver Burkeman included tDCS in his roundup of new brain-enhancing technologies for The Guardian.The manufacturers claim that the tDCS headset will “overclock your brain”, increase your brain’s plasticity and “make your synapses fire faster”. Overclocking sounds a bit dangerous, and rather than your synapses, wouldn’t it be better to make your neurons fire faster? Synapses are the junctions between neurons. We usually say it’s neurons that “fire” and their message is passed across one or more synapses to other neurons using chemicals. Unless the marketing people were talking specifically about electrical synapses? But sorry, I’m rambling. Must focus. “Foc.us”. Need more electric current. Hang on …
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