The European Commission wants to limit the use of food crops as a source of biofuel, and instead promote non-food sources, such as this Miscanthus, or elephant grass, grown in the UK, as a biofuel feedstock. (Source: Wikimedia Commons/David Wright)
This is an interesting situation. I really thought that the reason for the EU to limit biofuels was that there are food shortages from the drought in the US that have driven up the cost of basic foodstuffs. The issue of using land that was not under cultivation is a really imprecise measure. This happens in the realm of food production all the time depending on market conditions. For example, in the US, peanut production was at an all time high this year. The reason is two fold. First, crops were down and prices up in the previous couple of years. So, more land was put into cultivation. There was also a very high yield becuase the regions where peanuts are grown had lots of rain this year. In the EU, there are major distortions caused by the Common Agricultural Policy (CAP). This has nothing to do with fuel production. In the US we have our farm policy. In both cases we have been paying farmers for years to not grow cash crops to keep prices to farmers up. Now the market does that for us.
The alternatives are not all they are cracked up to be either. Algae would have to cover a large area to be useful. Are we ready for that? In addition, do the crops get credit for the CO2 they absorb while they are growing? This would be an interesting calculation. I have seen oil refineries and I have seen ehtanol plants. Is the CO2 from the oil refineries in the calculation? What about the transport of oil around the globe. Ethanol tends to be used near where it is distilled.
Any real comparison should take into account the whole cycle of production, including the equipment. I don't think we have seen that done for oil, or ethanol, in a comprehensive manner.
HP revealed more of its 3D printing plans in a recent webinar. Senior vice president of inkjet and graphics solution business Stephen Nigro spoke about how the technology works and expanded on HP's vision of open collaboration to commercialize its Multi Jet Fusion 3D printing technology for end-production, and open collaboration on new materials. He also said HP will create software to help users decide when to use Multi Jet Fusion versus conventional subtractive manufacturing.
A lightweight electric urban concept car designed by several European companies weighs only 992 lb without its battery. It would have weighed 26.7 lb more if its windows were made of glass instead of the specially coated LEXAN polycarbonate resin from SABIC Innovative Plastics.
Skylar Tibbits' team in MIT's Self-Assembly Lab is now 4D printing self-assembling shapes made of programmable carbon composites and custom wood grain. The composites are being used in a sport car airfoil, and the wood grain is beautiful.
The NanoSteel Company has produced high-hardness ferrous metal matrix composite (MMC) parts using a new nanosteel powder in a one-step 3D-printing process. Parts are 99.9% dense, crack-free, and with wear resistance comparable to M2 tool steels.
Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.