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Dawn of carnivores explains animal boom in distant past July 31, 2013 — A science team that includes researchers from Scripps Institution of Oceanography at UC San Diego has linked increasing oxygen levels and the rise and evolution of carnivores (meat eaters) as the force behind a broad explosion of animal species and body structures millions of years ago. Share This: Led by Erik Sperling of Harvard University, the scientists analyzed how low oxygen zones in modern oceans limit the abundance and types of carnivores to help lead them to the cause of the "Cambrian radiation," a historic proliferation of animals 500-540 million years ago that resulted in the animal diversity seen today. The study is published in the July 29 early online edition of the Proceedings of the National Academy of Sciences . Although the cause of the influx of oxygen remains a matter a scientific controversy, Sperling called the Cambrian radiation that followed ...

Raspberry Pi cooks up the Picrowave Raspberry Pi Gadget Master 2013/07/31 How does the saying go – “Set a thief to catch a thief”? Well, this one caught my eye – use a Raspberry Pi to cook a Raspberry pie! It’s a Pi-powered Microwave, that knows how to cook your food and that even talks to you. It was highlighted on the element14.com website, and is the work of one Nathan Broadbent. He was inspired by a post on Reddit, titled: Food items should have QR codes that instruct the microwave exactly what to do. Like high for 2 minutes, let stand 1 minute, medium 1 minutes … He took this as a challenge, and – armed with a Raspberry Pi – went to work… But what can a Pi can bring to electromagnetic radiation-based cooking? Well, added features of the “Picrowave” that he lists include: Re-designed touchpad Nicer sounds Clock is automatically updated from the internet Can be controlled with voice commands Can use a barcode scanner to look up cooking instructions from an online database ...

Hide, ambush, kill, eat: The giant water bug Lethocerus patruelis kills a fish Lethocerus patruelis is a member of the family Belostomatidae also known as electric light bugs or toe biters. These bugs are fierce predators which stalk, capture and feed on aquatic crustaceans, fish and amphibians. When they strike, they inject strong digestive saliva, sucking out the liquefied remains to feed. This powerful hunting tool gave the family its common name, referring to the extremely painful bite from the Belostomatidae members. Their bite is considered one of the most painful that can be ever inflicted by any insect but it is of no medical significance. During their study of the giant water bug N. Simov and M. Langourov from the study team had the unique chance to witness and record on video the vicious predatory practices of the species. In the recorded material, a larva uses the stems of a water plant to stalk and ambush its unsuspicious pray. The giant water bug larva can be seen stormin...

Could planting trees in the desert mitigate climate change? July 31, 2013 — As the world starts feeling the effects of increasing atmospheric carbon dioxide and consequent global temperature rise, researchers are looking for a Plan B to mitigate climate change. A group of German scientists has now come up with an environmentally friendly method that they say could do just that. The technique, dubbed carbon farming, consists in planting trees in arid regions on a large scale to capture CO 2 . Share This: They publish their study today in Earth System Dynamics , a journal of the European Geosciences Union (EGU). "Carbon farming addresses the root source of climate change: the emission of carbon dioxide by human activities," says first-author Klaus Becker of the University of Hohenheim in Stuttgart. "Nature does it better," adds Becker's colleague Volker Wulfmeyer, "if we understand and can make use of it in a sustainab...

Polar ecosystems acutely vulnerable to sunlight-driven tipping points July 31, 2013 — Slight changes in the timing of the annual loss of sea-ice in polar regions could have dire consequences for polar ecosystems, by allowing a lot more sunlight to reach the sea floor. Share This: The research by scientists at UNSW and the Australian Antarctic Division predicts that biodiversity on some areas of the polar seabed could be reduced by as much as one third within decades, as the poles warm. The study, Light-driven tipping points in polar ecosystems , will be published in the journal Global Change Biology . Dr Graeme Clark, of the UNSW School of Biological, Earth and Environmental Sciences, says the team's research shows that polar ecosystems may be even more sensitive to climate change than previously thought. "Even a slight shift in the date of the annual sea-ice departure could cause a tipping point, leading to widespread ecosystem shifts....

Inorganics-in-organics technology improves harvesting for 4G solar energy University of Surrey Universities - Electronics Research July 31, 2013 The University of Surrey is reporting on a development that “opens the door for more efficient, cost-effective and larger scale solar power generation“. Professor Ravi Silva, of the university’s Advanced Technology Institute has identified the range of combinations of organic and inorganic materials that will underpin new 4th generation solar cell technology. According to their report: The new 4G solar cells defined by Professor Silva are a hybrid that combine the low cost and flexibility of conducting polymer films (organic materials) with the lifetime stability of novel nanostructures (inorganic materials). This ‘inorganics-in-organics’ technology improves the harvesting of solar energy and its conversion into electricity, offering better efficiency than the current 3G solar cells while maintaining their low cost base. In turn, the...

Two pin crowbar protects from open circuit strings Driver Led Luminaries 2013/07/31 For protecting drivers when an LED goes open circuit, NUD4700 from On Semi is a 2x4mm electronic shunt, claming to clamp to 1V in what looks like less than 100ns, according to the data sheet. As well as protecting the driver, it will keep the rest of a string of LEDs functioning. “It provides a current bypass in the case of a single LED going into open circuit. LEDs are by nature quite fragile when subjected to transients and surge conditions. There are also many cases where high reliability of the LED lighting must be maintained such as headlights, lighthouses, bridges, aircraft, runways and so forth. In these cases the low cost addition of the NUD4700 will provide full assurance that an entire string of LEDs will not extinguish should one LED fail,” said the firm. This device is designed to be used with 1W LEDs (nominally 350mA 3V) and has a breakdown voltage of between 5.5 and 7.5V. On a 26...

Sign up for the Made By Monkeys newsletter Uncategorized Made By Monkeys 2013/07/31 Don’t forget that you can sign up for the Made By Monkeys newsletter to ensure you receive the latest and greatest posts, straight to your inbox! Signing up only takes a second – simply edit your account settings to check the ‘Made by Monkeys’ box – and then you can sit back and we do the rest. The mail is sent fortnightly, on alternating Wednesdays, at around 11.00am GMT. Don’t miss out! Welcome to SUV System Ltd! SUV System Ltd is ISO 90012008 Certified electronics distributor with 10 years of experiences. We have built up long term business relationship with about many companies which are stockers and authorized agents. we have a steady and reliable supply to meet customer's demands to the greatest extent .Confidently, we are able to lower your cost and support your business with our years of professional service. SUV System Ltd is Electronic Components Distributor Supplies,Fi...

Business Micron and Elpida complete acquisition 2013/07/31 Micron has also completed its purchase of Powerchip’s 24% stake in Rexchip and has 100% control of Rexchip’s output. The deal gives Micron a 25% share of the world DRAM market. This is the same as Hyinx’s market share and behind Samsung’s 42% share. Elpida has a 300mm fab in Hiroshima and a test and assembly facility in Akita; Rexchip has a 300mm fab in Taiwan. Elpida and Rexchip together can produce more than 185,000 300mm wafers per month, which represents an approximate 45%  increase in Micron’s current manufacturing capacity. Elpida is strong in mobile DRAM, targeting mobile phones and tablets which complements Micron’s strength in DRAM for networking and servers. “We are pleased to bring together Elpida with Micron to form the industry’s leading pure-play memory company. This combination will result in enhanced R&D and manufacturing scale, significant cost and production synergies and a stronger memory product...

Texas Instruments writes Bluetooth Smart SensorTag app for Android Features Eyes On Android 2013/07/31 Texas Instruments has announced a Bluetooth Smart SensorTag app for Android. Android 4.3 “Jelly Bean” now has native support of Bluetooth Smart Ready. It has been designed to work with TI’s CC2541-basedSensorTag, which has six commonly used sensors on a single board for evaluation and demos. “The addition of Bluetooth Smart support in Android 4.3 is a huge growth opportunity for the market, making it possible for Bluetooth Smart appcessories to workwith all OSs,” said Suke Jawanda, chief marketing officer, Bluetooth SIG. The SensorTag’s six integrated sensors include the TMP006 contactless IR temperature sensor, and there is a royalty-free BLE-Stack software which works with the SensorTag with firmware updates. Download the free SensorTag app for Android 4.3 on the TI website » The SensorTag kit (CC2541DK-SENSOR) costs $25 and is available on the TI eStore and from distribut...

How did Earth's primitive chemistry get kick started? Two papers published recently in the journal Philosophical Transactions of the Royal Society B provide more detail on the chemical and precursor metabolic reactions that have to take place to pave the pathway for life. Russell and his co-authors describe how the interactions between the earliest oceans and alkaline hydrothermal fluids likely produced acetate (comparable to vinegar). The acetate is a product of methane and hydrogen from the alkaline hydrothermal vents and carbon dioxide dissolved in the surrounding ocean. Once this early chemical pathway was forged, acetate could become the basis of other biological molecules. They also describe how two kinds of "nano-engines" that create organic carbon and polymers -- energy currency of the first cells -- could have been assembled from inorganic minerals. A paper published in the journal Biochimica et Biophysica Acta analyzes the structural similarity between the mos...