Lecture Date: Tuesday, June 24, 2008. Diamonds have been a prized material throughout history. They are scarce and beautiful, wars have been fought over them, and they remain today a symbol of wealth and power. Diamonds also have exceptional physical properties which can lead to unique applications in science. There are now techniques to artificially synthesize diamonds of extraordinarily high quality. In this talk, Professor Kagan will discuss the history of diamonds, their bizarre properties, and their manufacture and use for 21st century science. Lecturer: Harris Kagan, Ohio State University.
Iveco presented the innovation concept Iveco Glider as a world premiere during the Hannover Motor Show in September 2010. It is a concept truck on Productivity, which is addressed in terms of Energy Efficiency and Liveability. The results are: energy demand reduction by 40% , fuel saving of 28.000€/year, CO2 emissions reduction by 56tCO2/year and finally an unprecedented life on-board. What do you think about it?
Coffee is a brewed beverage with a bitter flavor prepared from the roasted seeds of the coffee plant. It is an accepted wake up call for many and a beverage to relax over and talk. But is coffee good for you? There is intense debate about that matter. Now comes a new study to reveal coffee in moderation may be good. If you drink coffee regularly in moderation, you could reduce your risk of heart failure, according to new research in the American Heart Association’s journal Circulation Heart Failure. Researchers, analyzing previous studies on the link between coffee consumption and heart failure, found that moderate coffee drinking as part of a daily routine may be linked with a significantly lower risk of heart failure. In contrast, indulging excessively may be linked with an increased chance of developing serious heart problems.
Hot Cities 28 – Los Angeles 4 – Surviving Climate Change – BBC Environmental Documentary, recorded 2.12.2009 “Surviving Climate Change” – With overflowing populations the worlds biggest cities are on the front-line of the relentless advance of climate change. How will the megacities cope? Hot Cities goes to LA just as the city launches its new adaptation strategy. Already LA and California have been looking at ways of reducing their huge energy and water needs by investing in electric cars, solar panels and by rationing water consumption, but what etra measures coul be implemented and ultimately exported to other megacities with similar challenges? Recorded from BBC on 12.12.2009
In the most general sense of the word, a cement is a binder, a substance that sets and hardens independently, and can bind other materials together. Cement is made by heating limestone with small quantities of other materials to 1450 °C in a kiln, in a process known as calcination to form calcium oxide, or quicklime, which is then blended with the other materials that have been included in the mix. The resulting substance is then ground to make “Portland Cement”. Portland cement is a basic ingredient of concrete, mortar and most non-specialty grout. The most common use for Portland cement is in the production of concrete. In response to a federal court ruling and data from industry, the U.S. Environmental Protection Agency (EPA) is proposing changes to its 2010 air standards for the Portland cement manufacturing industry. The proposal would continue the significant emission reductions from the 2010 standards while providing industry additional compliance flexibilities, including more time to implement the proposed updates by extending the compliance date for existing cement kilns from September 2013 to September 2015.
Botswana urgently needs policies to facilitate climate change adaptation to protect the Okavango Delta, the country’s most lucrative tourist attraction, according to a new study.
Recent statistics from the Bank of Botswana show that tourism is the country’s second largest source of income, contributing US$753 million to GDP in 2011. The Delta is one of the most popular destinations for visitors to the country.
Wame L. Hambira, from the Department of Environmental Science at the University of Botswana in Gaborone, warned that unless government policies take account of current and forecasted climate shifts, the tourism sector could be badly damaged, with serious implications for the wider economy.
Big Bobcat vs a beefy Rattlesnake on a nice warm day in Agua Dulce, CA. The match-up occurred just above a creek bed on a fairly steep hillside. After the snake takes a few swipes at the Bobcat, the big cat takes the upper hand and takes the snake into his mouth before jumping out of the wash and into a grove of pepper trees.
The Elementa Process (EP) converts carbon based matter into a synthesis gas (syngas) with properties and utility values similar to that of natural gas. The syngas and resultant heat can be used to power turbines, engines or fuel cells for the generation of electricity, distilled into ethanol or hydrogen, or used as process heat and gas (a natural gas replacement).
Deforestation is the removal of a forest or stand of trees where the land is thereafter converted to a nonforest use. About half of the world original forests had disappeared by 2011, the majority during the last 50 years. Since 1990 half of the rain forests have disappeared. Forests are removed and converted into other forms such as when it is used as fuel which will emit carbon dioxide. A new study with NASA participation has sharply reduced previous estimates of how much carbon was emitted into Earth’s atmosphere from tropical deforestation in the early 2000s. Research scientist Sassan Saatchi of NASA’s Jet Propulsion Laboratory, Pasadena, Calif., participated in the study, published June 21 in the journal Science. They combined satellite data on gross forest loss and forest carbon stocks to track emissions from deforestation in the world’s tropical forests. The resulting gross emissions estimate of 0.81 billion metric tons of carbon emitted per year is approximately one third of previously published estimates, and represents just 10 percent of the total global human-produced carbon emissions over the time period analyzed (2000 to 2005)