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Archive for the ‘energy’ category: Page 349

Oct 31, 2015

Robots, Bioprinting, and the Future of Food [Video]

Posted by in categories: drones, energy, food, health, robotics/AI, singularity

Emerging technologies are shaking up how we grow food, distribute it, and even what we’re eating. We are seemingly on the cusp of a food revolution and undoubtedly, technologies including artificial intelligence will play a huge role in helping people grow healthier, more resilient food faster and with less energy than ever before.

Rob Nail, Singularity University’s CEO and Associate Founder, provides a few examples of how robotics, automation, and drones are transforming agriculture in this short video:

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Oct 29, 2015

This Building Doesn’t Need A/C: The Building Itself Is An Air Conditioner — By Ben Schiller | Fast Company

Posted by in categories: architecture, business, energy

“This ingenious cooling system circulates cooled air in an endless loop—all without any electricity.”

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Oct 29, 2015

Warp Factor 11 — ships powered by BLACK HOLES to “outpace Enterprise”, say scientists

Posted by in categories: cosmology, energy, food, space travel

The novel its a bit older, but it‘s an incredible vision!


When Star Trek’s Scotty warns the Captain that the engines can’t “take it”, he might just be best off switching fuel — a new book claims that humanity could reach the stars using vast spacecraft harnessing the energy of black holes with the power to “eat planets”.

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Oct 28, 2015

Silicon Battery Technology Produces Ten Times More Energy

Posted by in categories: bioengineering, energy, transportation

Substantially smaller and longer-lasting batteries for everything from portable electronic devices to electric cars could be come a reality thanks to an innovative technology developed by University of Waterloo researchers.

Zhongwei Chen, a chemical engineering professor at Waterloo, and a team of graduate students have created a low-cost battery using silicon that boosts the performance and life of lithium-ion batteries. Their findings are published in the latest issue of Nature Communications.

Waterloo’s silicon battery technology promises a 40 to 60 per cent increase in energy density, which is important for consumers with smartphones, smart homes and smart wearables.

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Oct 28, 2015

Free energy of Tesla. Film (Dubbed into English)

Posted by in categories: bioengineering, energy, physics

Site — http://goo.gl/oORnr
IMDB — http://goo.gl/0PQvB
Instagram — http://goo.gl/JiyAC
Twitter — http://goo.gl/Ne8ZE
LinkedIn — http://goo.gl/myBN0
Vimeo — http://goo.gl/c57k6
Genre: docudrama
Type: documentary
Year: 2011
Director: Misha Kostrov
Creative director: Eugene Sannikov
Producer: Victor Mirsky, Sergey Sozanovsky
Creative producer: Oksana Maidanskaya
Director of photography: Vladimir Kratinov
Scriptwriter: Nataliya Doilnitsyna
Аwards: Platinum Remi Award, WorldFest Houston 2013

The film tacks together two tales: a historical account of Tesla’s eventful life and his pioneering research into physics and bold experiments with electricity.

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Oct 28, 2015

New silicon-based anode set to boost lifetime and capacity of lithium-ion batteries

Posted by in categories: energy, materials, nanotechnology

A new approach developed by researchers at the University of Waterloo could hold the key to greatly improving the performance of commercial lithium-ion batteries. The scientists have developed a new type of silicon anode that would be used in place of a conventional graphite anode, which they claim will lead to smaller, lighter and longer-lasting batteries for everything from personal devices to electric vehicles.

Graphite has served the lithium-ion battery world as material for negative electrodes well so far, but also presents something of a roadblock for improved capacity. This is due to the relatively small amount of energy it can store, which comes in at around 370 mAh/g (milliamp hours per gram). Silicon has become an increasingly popular substitute for battery researchers looking to up the ante, with a specific capacity of 4,200 mAh/g. However, it isn’t without its limitations either.

As silicon interacts with lithium inside the cell during each charge cycle, it expands and contracts by as much as as 300 percent. This immense swelling brings about cracks that diminish the battery’s performance over time, leading to short circuits and ultimately cell failure. Other recent attempts to overcome this problem have turned up battery designs that use sponge-like silicon anodes developed at the nanoscale, silicon nanowires measuring only a few microns long and ones that bring graphene and carbon nanotubes into the mix.

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Oct 28, 2015

A Simple Design Change Could Make a Thruster To Get Us to Mars

Posted by in categories: energy, particle physics, space travel

A Hall thruster is powering many of the satellites moving around Earth right now. It needs 100 million (yes, you read that right, 100 million) times less fuel than chemical thrusters. But it was never remotely sturdy enough to get anything to Mars—until now.

Typical chemical thrusters are pretty simple. Fuel combusts, gases shoot one way, and a rocket shoots the other way.

Ion thrusters are a little different. They contain charged electrodes, an anode and a cathode, and allow positively charged ions to shoot from the anode to the cathode. Thanks to momentum, the ions will “overshoot” the cathode. Under regular circumstances they’d be sucked back, but once they’ve cleared the cathode, they’re hit by a beam of electrons, neutralizing them and allowing them to go on their way without interference from the charged cathode. So the neutralized atoms shoot one way, and the rocket shoots another.

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Oct 25, 2015

Samsung’s latest batteries make unusual wearables possible

Posted by in category: energy

Samsung’s latest battery prototypes could lead not only to more powerful wearables, but also to unusual ones. The first model called Band is meant to be attached to smartwatch straps, as its name implies, to add as much as 50 percent of the device’s original battery life. Stripe, on the other hand, is the thin, bendy strip the model above is holding in her hands — and the more versatile between the two. Since it’s extremely thin (it has a depth measuring 0.3mm), it could be used to create all kinds of wearables, such as smart necklaces and headbands, or even interactive clothing designs. According to Samsung, it has higher energy density than current comparable batteries, though it didn’t name any particular brand and model.

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Oct 21, 2015

5 REAL Possibilities for Interstellar Travel | Space Time | PBS Digital Studios

Posted by in categories: energy, entertainment, quantum physics, space travel

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Oct 19, 2015

Magnetically controlled battery could store energy for power grids

Posted by in categories: energy, innovation

(Phys.org)—Scientists have built a battery containing a magnetic fluid that can be moved in any direction by applying a magnetic field. The magnetically controlled battery concept could be especially useful for flow batteries, where it could eliminate the need for the pumps that are typically required for moving the electrolyte from an external storage tank to the inside of a power stack to provide electricity. Flow batteries are being actively researched as large-scale energy storage devices for power grids, where they could store energy captured by intermittent alternative energy sources such as wind and solar.

The researchers, led by Yi Cui, Professor at Stanford University, have published a paper on the new magnetically controlled battery in a recent issue of Nano Letters.

“The greatest significance of our work lies in the innovative idea of using a magnetic field to control and enhance the mass and electron transport in a battery system,” lead author Weiyang Li, previously at Stanford University and now at Dartmouth College, told Phys.org.

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