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3D printing grows up: scientists are using the tech to make an earthmoving machine

Scientists at the US Oak Ridge National Laboratory are assembling the world’s first 3D-printed hydraulic excavator, a prototype which they say will explore the feasibility of printing with metal alloys.

3D-printing, or additive manufacturing (AM), mostly uses plastics of some sort to create objects layer by layer. Plastics are cheap, light, and easy to melt, lending themselves to the process. Metals, on the other hand, are heavy, costly, and melt at much higher temperatures – making them a challenging material for 3D printing.

But metals are what is needed if truly useful machines like cars or tractors are to be 3D-printed.

Fund Medical Research to End Age-Related Disease

Please sign this petition to the NIH to help get more funding for aging research.


Every year about two million Americans die of illnesses doctors cannot cure. Cancer afflicts 50% of men and 30% of women. Five hundred and ninety five thousand Americans will die of cancer this year. Millions get heart diseases, strokes, etc. Every year 1,612,552 Americans die of the top 8 illnesses that doctors are unable to cure. Over a 30-year period, 48,376,560 United States citizens will die of the top 8 illnesses. Let us not forget other disabling and potentially curable illnesses. How much is it worth to save them? We have the resources and opportunity to cure age-related disease.

History has shown that medical research actually saves money. We now spend three trillion two hundred billion dollars yearly for health care. The health care expenditures will increase as our population grows with more senior citizens.

Every year we also spend hundreds of billions of dollars for services such as Social Security Disability, welfare, food stamps, special transportation, etc. Medical research will help cut down on the need for these services. It will also extend our lives.

Elon Musk unveils plan to colonise Mars (2016.9.27)

Elon Musk unveils SpaceX’s future Mars vehicle and discusses the long-term technical challenges that need to be solved to support the creation of a permanent, self-sustaining human presence on Mars. The presentation focuses on potential architectures for sustaining humans on the Red Planet that industry, government and the scientific community can collaborate on in the years ahead.

Overview:
00:00. Why Mars and become a multi-planetary civilisation.

05:55. Early exploration missions.

09:15. Challenge 1: Full re-usability

11:17. Challenge 2: Refilling in orbit

12:31. Challenge 3: Mars propellant production.

Soon, Tesla Cars Could Power the Grid (and Our Homes)

In Brief.

Tesla and SolarCity are working on making their cars capable of powering a household, and even the entire grid. Using vehicle-to-grid technology, Tesla may be on to something here, and its more than just saving on your electric bills.

Earlier this year, Elon Musk bought SolarCity for at least $2.6 billion, merging the solar engineering company with Tesla. Since then, both have been busy working on a few things. Perhaps the most interesting of these is the promise to cut down on your household electric bill.

Reaction Engines UK plans integrated hypersonic engine tests by 2020–2021 with joint strike fighter sized engine

Reaction Engines of the UK has scaled back its design for the Sabre engine to bring about a demonstrator that is more affordable and better suited to early applications, including a potential X-plane.

The Oxfordshire-based firm has been developing a turbine that combines both jet and rocket technologies to achieve rates five times the speed of sound, to fly anywhere in the world in just four hours.

Rather than aiming for a demonstrator that can achieve more than 150,000 lb thrust, the firm will instead now target an engine size capable of roughly 44,000 lb thrust, according to Aviation Week Network.

Komatsu’s robotic mining truck completely dumps the driver

Komatsu’s latest autonomous truck fully embraces the notion of unmanned operation by ditching the cabin and adopting a design that optimizes load distribution and doesn’t distinguish between forwards and backwards.

Komatsu began trials of its Autonomous Haulage Systems (AHS) in a partnership with mining company Rio Tinto in 2008, and since then the technology has hauled hundreds of millions of tonnes of material in Chile and Australia’s Pilbara region.

The autonomous haul trucks like the 930E model used by Rio Tinto incorporate controls, wireless networking and obstacle detection to enable unmanned operation, but they still look like conventional mining trucks complete with driver cabins.

Google’s ‘worst’ self-driving accident was still a human’s fault

Google said that one of its self-driving cars was involved in an accident in Mountain View, California last week. The accident was first reported Friday by 9to5 Google, which characterized the incident as Google’s “worst accident yet.”

In a statement, Google insisted its driverless car was not at fault. A crash report with the DMV has yet to be posted, so all the details have yet to be confirmed.

According to the Google, the accident occurred when a vehicle heading west on El Camino Real in Mountain View ran a red light and collided with the right side of a Google self-driving vehicle that was traveling northbound on Phyllis Ave. “Our light was green for at least six seconds before our car entered the intersection,” a spokesperson said.

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