Holographic sails fixes last technical issues for interstellar laser pushed sails

Greg Matloff and his wife, C Bangs, have researched the use of holographic films for solar and laser pushed space sails. Matloff’s work is described at Centauri Dreams. Greg Matloff is on the Advisor’s Board of Yuri Milner’s $100 million Breakthrough Starshot project. Matloff has worked for decades interstellar travel techniques. Breakthrough starshot is considering …

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100 Petawatt lasers could tear apart vacuum by 2023

In 2016, the Shanghai Superintense Ultrafast Laser Facility (SULF), is a single cylinder of titanium-doped sapphire about the width of a Frisbee. achieved an unprecedented 5.3 million billion watts, or petawatts (PW). The lights in Shanghai do not dim each time the laser fires, however. Although the pulses are extraordinarily powerful, they are also infinitesimally …

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India should be most populous country in 2024

China’s population is 1.42 billion and India’s population is 1.35 billion. India is projected to surpass China’s population in 2024. In 2024, India and China are expected to have roughly a population of 1.44 billion each. After that, India’s population is projected to continue growing for several decades to around 1.5 billion in 2030 and …

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California should have over 40 million in September 2018

California will have over 40 million people around September, 2018. California’s population grew by 301,000 people between July 1, 2016 and July 1, 2017 to total 39.6 million. By July 1, 2018 California should have 39.9 million and should be over 40 million in September, 2018. World Population Review estimates California’s current population at 39.78 …

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US Army has first-ever combustion experiment with X-rays

The U.S. Army Research Laboratory’s Center for Unmanned Aircraft Systems Propulsion made an historic first with its experiment in a gas turbine combustor using X-rays. The data will help advance gas turbine engine designs for higher power density and efficiency, scientists said. “This is the strongest X-ray source in the world,” said Tonghun Lee, an …

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Roll-to-roll chemical vapor deposition system makes long sheets of high quality graphene

MIT has combined a roll-to-roll approach — a common industrial approach for continuous processing of thin foils — with the common graphene-fabrication technique of chemical vapor deposition, to manufacture high-quality graphene in large quantities and at a high rate. The system consists of two spools, connected by a conveyor belt that runs through a small …

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Google AI staff balk at helping US military keep AI lead over China

Defense One Technology Editor Patrick Tucker has reported on August 2017 meetings between US Defense Secretary James Mattis and Google founder Sergey Brin and CEO Sundar Pichai. Over a half day of meetings, Google leaders described the company’s multi-year transition to cloud computing and how it was helping them develop into a powerhouse for research …

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