Lifeboat Foundation

Ryan Weed Positron Dynamics.

Current state of the art in-space propulsion systems based on chemical or ion propellants fail to meet requirements of 21st century space missions. Antimatter is a candidate mechanism for a propulsion system that could transport humans and/or robotic systems with drastically reduced transit times, providing quicker scientific results, increasing the payload mass to allow more capable instruments and larger crews, and reducing the overall mission cost. Unfortunately, previous propulsion concepts relied on unrealistic amounts of trapped antimatter — orders of magnitude away from any near-term capability. The goal of this effort is to determine the feasibility of a (TRL 1–2) radioisotope positron catalyzed fusion propulsion concept that does not rely on trapped antimatter. Such a transformative technology inspires and drives further innovation within the aerospace community and can be applied to a relevant mission — the bulk retrieval of an entire asteroid into translunar space — a mission of great scientific and commercial interest (e.g. asteroid mining). The idea of harnessing resources from asteroids goes back more than a century to Tsiolkovsky. Fundamentally, for asteroid mining to become financially viable, the cost of the retrieval spacecraft must be less than the value gained from the asteroid. Therefore, developing technology (e.g. efficient propulsion systems) that decreases the mass and complexity of the retrieval spacecraft must be a priority.

Editor: Loura Hall

Continue reading “Radioisotope Positron Propulsion” »

Google ends Pentagon contract to develop AI for recognising people in drone videos after 4,000 employees signed an open letter saying that Google’s involvement is against the company’s “moral and ethical responsibility”.

Google will not seek another contract for its controversial work providing artificial intelligence to the U.S. Department of Defense for analyzing drone footage after its current contract expires.

Google Cloud CEO Diane Greene announced the decision at a meeting with employees Friday morning, three sources told Gizmodo. The current contract expires in 2019 and there will not be a follow-up contract, Greene said. The meeting, dubbed Weather Report, is a weekly update on Google Cloud’s business.

Continue reading “Google Plans Not to Renew Its Contract for Project Maven, a Controversial Pentagon Drone AI Imaging Program” »

Someday, AI robot assistants might be able to make you a coffee after watching you do it.

MIT CSAIL

Continue reading “Scientists Are Teaching AI to do Household Chores” »

It’s a philosophy best exemplified by Wood’s book released last month, Transcending Politics: A Technoprogressive Roadmap to a Comprehensively Better Future, which starts by declaring politics “broken,” technology as something that “risks making matters worse,” and deems transhumanism the force that can fix it all “comprehensively”:

David Wood, a transhumanist who co-founded Symbian in 1998, is working to develop a transhumanist superdemocracy that uses the best parts of artificial intelligence and communication to draw on the likes of Zoltan Istvan and Peter Thiel in a new movement to create longevity and sustainable abundance for all.

By selectively altering specific pixels, and AI system can block facial-recognition software without making visible changes to a photo.

Russian researchers from the Moscow Institute of Physics and Technology (MIPT), the Technological Institute for Superhard and Novel Carbon Materials (TISNCM), and the National University of Science and Technology MISIS have optimized the design of a nuclear battery generating power from the beta decay of nickel-63, a radioactive isotope. Their new battery prototype packs about 3,300 milliwatt-hours of energy per gram, which is more than in any other nuclear battery based on nickel-63, and 10 times more than the specific energy of commercial chemical cells. The paperwas published in the journal Diamond and Related Materials.

Conventional batteries

Ordinary batteries powering clocks, flashlights, toys, and other compact autonomous electrical devices use the energy of so-called redox chemical reactions. In them, electrons are transferred from one electrode to another via an electrolyte. This gives rise to a potential difference between the electrodes. If the two battery terminals are then connected by a conductor, electrons start flowing to remove the potential difference, generating an electric current. Chemical batteries, also known as galvanic cells, are characterized by a high power density — that is, the ratio between the power of the generated current and the volume of the battery. However, chemical cells discharge in a relatively short time, limiting their applications in autonomous devices. Some of these batteries, called accumulators, are rechargeable, but even they need to be replaced for charging. This may be dangerous, as in the case of a cardiac pacemaker, or even impossible, if the battery is powering a spacecraft.

Forget zombies or killer robots – the most likely doomsday scenario in the near future is the threat of superbugs. Bacteria are evolving resistance to our best antibiotics at an alarming rate, so developing new ones is a crucial area of study. Now, inspired by a natural molecule produced by marine microorganisms, researchers at North Carolina State University have synthesized a new compound that shows promising antibacterial properties against resistant bugs.

Decades of overuse and overprescription of antibiotics has led to more and more bacteria becoming resistant to them, and the situation is so dire that a recent report warned that they could be killing up to 10 million people a year by 2050. Worse still, the bugs seem to be on schedule, with the ECDC reporting that our last line of defense has already begun to fail in large numbers.

The changes coming in driverless vehicles are just the tip of the iceberg. What’s yet to come is nothing short of unimaginable!

SenseTime Group Ltd. has raised $620 million at a valuation of more than $4.5 billion just months after scoring a similar amount from investors led by Alibaba Group Holding Ltd. and Singapore’s state investment firm.