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“This paper discusses the physics, engineering and mission architecture relating to a gram-sized interstellar probe propelled by a laser beam. The objectives are to design a fly-by mission to Alpha Centauri with a total mission duration of 50 years travelling at a cruise speed of 0.1c. Furthermore, optical data from the target star system is to be obtained and sent back to the Solar system. The main challenges of such a mission are presented and possible solutions proposed. The results show that by extrapolating from currently existing technology, such a mission would be feasible. The total mass of the proposed spacecraft is 23g and the space-based laser infrastructure has a beam power output of 15GW. Rurther exploration of the laser — spacecraft tradespace and associated technologies are necessary.”

https://arxiv.org/abs/1708.03556

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By David Hambling

The accidental discovery of a novel aluminium alloy that reacts with water in a highly unusual way may be the first step to reviving the struggling hydrogen economy. It could offer a convenient and portable source of hydrogen for fuel cells and other applications, potentially transforming the energy market and providing an alternative to batteries and liquid fuels.

“The important aspect of the approach is that it lets you make very compact systems,” says Anthony Kucernak, who studies fuel cells at Imperial College London and wasn’t involved with the research. “That would be very useful for systems which need to be very light or operate for long periods on hydrogen, where the use of hydrogen stored in a cylinder is prohibitive.”

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New capacitors offer big power storage and transmission in a mini-package, with benefits beyond electro-cannons.

The U.S. Navy’s shipboard railgun is moving from the lab to the testing range, a big step for a weapon designed to fire massive bullets at hypersonic speeds. But a separate breakthrough in electrical pulse generation — capacitors that provide a bigger jolt in a smaller package — that may reshape the future of naval power.

The railgun’s electromagnets are designed to accelerate a Hyper Velocity Projectile from zero to some 8,600 kmph, about Mach 7. That velocity requires a lot of power. In early testing, the Office of Naval Research had relied on banks of commercial capacitors to pulse electricity to the gun. But they were “not suitable for integration aboard a ship” — too large to fit aboard Zumwalt-class destroyers, as Thomas Beutner, head of ONR’s Naval Air Warfare and Weapons Department, explained during a July event in Washington.

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https://youtube.com/watch?v=ohig71bwRUE

Your flying car might finally be on the way as the all-electric, two-seater Lilium Jet took its first test flight this week. Lilium Aviation’s prototype consumes around 90 percent less energy than drone-style aircraft and could be the transportation mode of the future.

If you’ve been begging the universe for a flying car for your entire life, you may soon be able to stop asking (sort of). This week, Germany-based company Lilium Aviation took its new all-electric, two-seater vertical take-off and landing (VTOL) prototype for its first test flight. The jet was piloted remotely during the tests, but its creators say the vehicle’s first manned flight will happen soon.

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At the 2017 Naval Future Force Science and Technology Expo in Washington DC, an ONR spokesman revealed that the weapon is ready for field demonstrations at the Naval Surface Warfare Center Dahlgren Division’s new railgun Rep-Rate Test Site at Terminal Range, according to New Atlas.

Initial rep-rate fires (repetition rate of fires) of multi-shot salvos already have been successfully conducted at low muzzle energy, officials say.

The next test sequence calls for safely increasing launch energy, firing rates and salvo size.

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I have recently re-kindled my interest in neuro-hacking, the process of using technological and spiritual tools to essentially hack my consciousness, make myself calmer, and of course, happier! I’ve been using vitamins (D3!) and isochronic tones for some time, but I have run across a number of new devices and apps recently. I got a demo kit for a new device called Thync, that purports to alter brain waves to achieve greater calm, less stress, and more energy. This follows, for me, several decades of interest in this arena, also fueled by a bunch of projects in the works that seek to augment human potential using the latest brain science, emerging hardware, and games.

This is an area of professional interest as well as personal. I’m a socio-cultural anthropologist with a focus on digital culture, technology use, and future possibilities. My graduate work focused on social learning associated with online gaming. A lot of my focus falls into a sub-discipline of anthropology known as cyborg anthropology:

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A BAE railgun system is undergoing multi-shot rep-rate operations at Naval Surface Warfare Center Dahlgren, in Virginia. Railgun firing test will continue over the next three years. The railgun system has been tested at Dahlgren’s railgun advanced research facility since November. The Navy has successfully tested a next-generation 32-megajoule railgun.

The US Navy is gradually increasing the railgun firing rate and energy level.

Rep. Rob Wittman, R-Va., chairman of the House Armed Services Committee’s subcommittee on seapower and projection forces, said * the pulsed power units, the batteries are getting smaller and are getting more efficient * more shots are being fired without having to replace the barrel.

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