Recycling Mystery: Metal Lids & Bottle Caps

July 11, 2018 by  
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When discarding plastic bottles, many recycling services now prefer you … The post Recycling Mystery: Metal Lids & Bottle Caps appeared first on Earth911.com.

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Recycling Mystery: Metal Lids & Bottle Caps

Where Will All the Fidget Spinners Go?

June 29, 2017 by  
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If you haven’t been subject to the fidget spinner craze, those little toys everyone from schoolchildren to business execs can’t stop spinning, chances are high that you are in fact living under a rock. But like all good fads — Silly…

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Where Will All the Fidget Spinners Go?

How Many Times Can That Be Recycled?

June 15, 2017 by  
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I used to think that plastic water bottles could be infinitely recycled, that every time I tossed one into the blue bin, it eventually came out to be another plastic bottle. As it turns out, that’s not the case. Some materials can be recycled…

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How Many Times Can That Be Recycled?

Using Metals as Carbon Free Fuel Alternatives

January 22, 2016 by  
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Researchers are exploring the novel idea of using metals as fuels. This is not some new, exotic science-fiction material, but rather plentiful, ordinary metals such as iron that could be used in a novel way for storing and transporting renewable energy. According to a McGill University article, the research being led by Professor Jeffrey Bergthorson is proposing “a novel concept for using tiny metal particles – similar in size to fine flour or icing sugar – to power external-combustion engines.” Instead of using the chemical bonds with carbon, which are currently the basis of most fuels we presently use, metal powders could be used in a similar fashion and make use of energetic reactions to release energy when and where it is needed. The article describes the process: “Unlike the internal-combustion engines used in gasoline-powered cars, external-combustion engines use heat from an outside source to drive an engine. External-combustion engines, modern versions of the coal-fired steam locomotives that drove the industrial era, are widely used to generate power from nuclear, coal or biomass fuels in power stations.” We already speak of the “embodied energy” in a material as par of its overall sustainability profile. Materials that are energy intensive to produce, such as concrete and steel, are less preferable from a lifecycle perspective compared to a material like wood, which needs much less energy to gather and prepare. So the idea of using iron powder (or some other metal) as a fuel is not as impractical as it might seem at first. While we think of metal as non-combustible, fine metal can be burned (as anyone who has ever lit a piece of steel wool on fire can tell you). But transporting a load of iron dust is much less hazardous than loads of oil or liquified natural gas. Using metals as a fuel would require capturing the spent fuel in order to re-process it. Having clouds of rust floating in the air sounds like a dystopian future. But, in theory, processing the oxidized metal back into its pure state could be carried out repeatedly, re-using the same metal over and over. While the researchers are looking at all levels of energy use with this technology, from automotive uses on up, the idea of storing grid-scale energy or even transporting it from one location to another (refining metal near locations producing lots of energy, much the way aluminum processing presently takes place close to cheap electricity sources), and then transporting the metal to power plants for it to be burned to produce electricity. One potential drawback that probably requires further investigation is that metal is a much heavier substrate than carbon-based fuels are. If metal dust is to be used for transportation, how heavy is the fuel that needs to be carried for ordinary travel? But if existing combustion power plants could be adapted to use metal powder instead of coal or other fossil fuels, then much of the existing power generating infrastructure could be used, and power generation could continue to be in the same places it is now, using the same grid as is currently supplying electricity. Large scale power plants are also likely much easier to set up with the equipment necessary to do the capture of exhaust. via: Quirks and Quarks

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Using Metals as Carbon Free Fuel Alternatives

Vader 3D Printer Creates Objects with Molten Metal

November 6, 2013 by  
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Father and son inventors Scott and Zackery Vader have created a revolutionary 3D printer that can create designs out of molten metal! The Vader 3D printer uses molten aluminum in place of plastic, and it can easily create complex forms without the need for lasers or fancy anodizing processes. Read the rest of Vader 3D Printer Creates Objects with Molten Metal Permalink | Add to del.icio.us | digg Post tags: “Making” , 3D Print with metal , 3D printing , 3D printing with Metal , 3D printing with molten metal , advanced fabrication , Advanced Manufacturing , can you 3d print with metal , DIY , makers , molten metal project , Scott Vader , Vader 3D Printer , Zack Vader        

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Vader 3D Printer Creates Objects with Molten Metal

Op-Ed: Scrap Metal Is the Ore of the Future

September 25, 2013 by  
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One reader argues that scrap metal is the ore of the future.

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Op-Ed: Scrap Metal Is the Ore of the Future

Fishing for Energy Trolls Ports for Old Gear to Recycle, Convert to Energy

September 23, 2013 by  
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The U.S. commercial fishing industry adds a lot to the economy — and a lot of waste to the environment. Fishing for Energy’s solution? Free recycling of old and unusable fishing gear.

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Fishing for Energy Trolls Ports for Old Gear to Recycle, Convert to Energy

Can recycling gold help the metal regain its luster?

August 27, 2013 by  
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Emptying the world's vaults is one way to stretch gold supplies for decades. But here's a better long-term solution.

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Can recycling gold help the metal regain its luster?

KAIST Develops a Metal-Graphene Composite Material Hundreds of Times Stronger Than Pure Metals

August 26, 2013 by  
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Graphene  © AlexanderAlUS/ CORE Materials Researchers from the Korea Advanced Institute of Science and Technology (KAIST) have developed a new metamaterial that is proven to be hundreds of times stronger than pure metals . To maximize the potential increase in strength provided by the use of graphene, the KAIST team created a multi-layered structure, alternating layers of graphene and metal—this composite  nanomaterial  consists of graphene inserted into copper and nickel. The resulting metal-graphene multilayer composite material is the first of its kind, and the team’s research was published in the science journal, Nature Communications  in July of 2013. Read the rest of KAIST Develops a Metal-Graphene Composite Material Hundreds of Times Stronger Than Pure Metals Permalink | Add to del.icio.us | digg Post tags: Chemical Vapor Deposition , composite stronger than metal , KAIST graphene composite , Korea Advanced Institute of Science and Technology , metal-graphene composite , Molecular Dynamics Simulation , nature communications journal , Transmission Electronic Microscope        

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KAIST Develops a Metal-Graphene Composite Material Hundreds of Times Stronger Than Pure Metals

A 3D Printed Part Will be at the front of Bloodhound’s 1000 MPH Supersonic Car

August 14, 2013 by  
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The team behind the Bloodhound Supersonic Car (SSC) is gearing up to set a 1,000 mile per hour speed record in summer 2015 – and to accomplish the feat they’re turning to 3d printing technology to create a custom ultra-light nose cone. If all goes well, the first thing to break the 1,000 mile per hour speed barrier will be a 3D printed part. Read the rest of A 3D Printed Part Will be at the front of Bloodhound’s 1000 MPH Supersonic Car Permalink | Add to del.icio.us | digg Post tags: 3D printing , bloodhound supersonic car , Dan Johns , David Willetts , engineering , industry , laser sintering , machining , manufacturing , Metal , Renishaw , resources        

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A 3D Printed Part Will be at the front of Bloodhound’s 1000 MPH Supersonic Car

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