Schematic illustrating the direction of ion/water permeation along graphene planes (credit: J. Abraham et al./ Nature Nanotechnology)
Continue reading “Graphene-oxide sieve turns seawater into drinking water” »
The two fundamental prerequisites for large-scale economic use of space resources are:
1. in-space manufacture of propellants from nonterrestrial bodies, and 2. in-space manufacture of heat shields for low-cost capture of materials into Earth orbit.
The former has been the subject of recent NIAC investigations. The latter would expand by a factor of 30 to 100 time the number of asteroids from which resources could be returned cost-effectively to Earth orbit. With vastly larger populations from which to choose, return opportunities will be much more frequent and targets can be selected where operations would be highly productive, not merely sufficient. The feedstocks for manufacture of life-support materials and propellants are found on C-type near-Earth asteroids, which have high concentrations of hydrogen, carbon, nitrogen, oxygen and sulfur. The total abundance of readily extractable (HCNOS) volatiles in the CI chondritic meteorite parent bodies (C asteroids) is roughly 40% of the total meteorite mass. Further, the residue from extraction of volatiles includes a mix of metallic iron (10% of total mass), iron oxide and iron sulphides (20% as Fe) plus 1% Ni and ~0.1% Co.
Theoretical physics often lifts the sanctions we set on our own imaginations. Whether it’s exploring the possibility of warp drives or understanding the rate of the universe’s expansion, we are quick to explore the unknown on our chalkboards until our tech is ready for our ideas.
In a similar deep-dive into the theoretical, a Norwegian professor argues in the journal Acta Astronautica for the of possibility of photon rockets that can reach 99.999 percent of the speed of light (300,000 km/s [186,000 mph]); asserting that, while humanity can’t do it anytime soon, we could potentially build a spacecraft that falls just short of the ultimate speed limit sometime in the future when the necessary technology is feasible.
Continue reading “We May Be Able to Build a Rocket That Can Go 99.999% the Speed of Light” »
Architecture has evolved and has become much more than just a design realized in concrete and modern building material. It has been transformed to help humanity in achieving all kinds of sustainability.
The eVolo Magazine for Architecture has been organizing another round of Skyscraper Competition in 2017 to honor those visionaries that try to realize a future that benefits humanity and the one Earth we all need to cherish and sustain.
A team from Spain with aspiring architects Arturo Emilio Garrido Ontiveros, Andrés Pastrana Bonillo, Judit Pinach Martí and Alex Tintea is thinking of a hybrid solution, that ensures Humanity’s survival in the early days of Mars’ colonization. The skyscraper design is both clever and beautiful, combining existing technologies with many practical ideas to open up and terraform more red soil as we understand the planet. It’s a genesis of Mars and a revival of form following function.
Ice-nine is a fictitious alternative structure of water that is solid at room temperature. When a crystal of ice-nine contacts liquid water, it becomes a seed crystal that makes the molecules of liquid water arrange themselves into the solid form, ice-nine. Felix Hoenikker’s reason to create this substance was to aid in the military’s plight of wading through mud and swamp areas while fighting. That is, if ice-nine could reduce the wetness of the areas to a solid form, soldiers could easily maneuver across without becoming entrapped or slowed. (Cat’s Cradle by Kurt Vonnegut) Source: https://en.wikipedia.org/wiki/Cat%27s_Cradle
Jim Rickards uses ICE 9 in his latest work “The Road to Ruin” to warn investors of a potential ICE 9 event in which the financial system literally freezes up in a domino type event as he describes in a recent interview:
The controversial laboratory tool known as CRISPR may have found a whole new world to conquer. Already the favored method of editing genes, CRISPR could soon become a low-cost diagnostic tool that could be used practically anywhere to determine if someone has an infectious disease such as Zika or dengue.
The controversial gene-editing tool may be able to identify infections reliably for pennies in places without electricity.
David Wood ‘s list would be a great syllabus for a 2017 Intro to Transhumanism course.
Antidotes to the six horsemen of the Trumpocalypse
Inventors, major companies and venture capitalists will unite next week for the first Chicago Machine Learning Venture Capital Summit.
Representatives from Google, IBM Watson, Microsoft and some of Chicago’s top investment firms will be among the speakers at April 19 event.
Toyota is introducing a wearable robotic leg brace designed to help partially paralyzed people walk.
The Welwalk WW-1000 system is made up of a motorized mechanical frame that fits on a person’s leg from the knee down. The patients can practice walking wearing the robotic device on a special treadmill that can support their weight.
Toyota Motor Corp. demonstrated the equipment for reporters at its Tokyo headquarters on Wednesday.
NASA is funding Mach effect propulsion in the latest round of advanced concept projects.
Nextbigfuture has covered Woodwards Mach effect propulsion in dozens of articles.
They propose to study the implementation of an innovative thrust producing technology for use in NASA missions involving in space main propulsion. Mach Effect Thruster (MET) propulsion is based on peer-reviewed, technically credible physics. Mach effects are transient variations in the rest masses of objects that simultaneously experience accelerations and internal energy changes. They are predicted by standard physics where Mach’s principle applies – as discussed in peer-reviewed papers spanning 20 years and a recent book, Making Starships and Stargates: the Science of Interstellar Transport and Absurdly Benign Wormholes published recently by Springer-Verlag. These effects have the revolutionary capability to produce thrust without the irreversible ejection of propellant, eliminating the need to carry propellant as required with most other propulsion systems.
Continue reading “Mach Effects for In Space Propulsion: Interstellar Mission” »
