The Big Necessity

Source: BBC Bill Gates is, in a manner of speaking, flushing his money down the toilet. His charitable organisation, the Bill & Melinda Gates Foundation, is looking for future loos that can improve sanitation around the world. At the Reinvent the Toilet fair, hosted at its Seattle campus this week, designs included a lavatory that used microwave energy to turn poo into electricity. Another turned excrement … Continue reading The Big Necessity

The water footprint of bioenergy

All energy scenarios show a shift toward an increased percentage of renewable energy sources, including biomass. This study gives an overview of water footprints (WFs) of bioenergy from 12 crops that currently contribute the most to global agricultural production: barley, cassava, maize, potato, rapeseed, rice, rye, sorghum, soybean, sugar beet, sugar cane, and wheat. In addition, this study includes jatropha, a suitable energy crop. Since climate and production circumstances differ among regions, … Continue reading The water footprint of bioenergy

Food shortages could force world into vegetarianism

Source: The Guardian Leading water scientists have issued one of the sternest warnings yet about global food supplies, saying that the world’s population may have to switch almost completely to a vegetarian diet over the next 40 years to avoid catastrophic shortages. Humans derive about 20% of their protein from animal-based products now, but this may need to drop to just 5% to feed the extra 2 billion people expected to … Continue reading Food shortages could force world into vegetarianism

Public perceptions of energy consumption

In a national online survey, 505 participants reported their perceptions of energy consumption and savings for a variety of household, transportation, and recycling activities. When asked for the most effective strategy they could implement to conserve energy, most participants mentioned curtailment (e.g., turning off lights, driving less) rather than efficiency improvements (e.g., installing more efficient light bulbs and appliances), in contrast to experts’ recommendations. For a sample of 15 activities, participants … Continue reading Public perceptions of energy consumption

Interesting Speeches!

Kamal Haasan (born 7 November 1954) is an Indian film actor, screenwriter, producer and director, considered to be one of the leading method actors of Indian cinema (Source: Wikipedia). He gave this interesting talk at IIT Bombay, India. He ♣♣♣ Shahrukh Khan (born 2 November 1965), often credited as Shah Rukh Khan and informally referred to as SRK, is an Indian film actor. Often referred to in the media as “The King of Bollywood”, Khan has acted in over 70 … Continue reading Interesting Speeches!

What is the point of education

This article was written by a 16 year for NDTV (India) I am a 16-year-old-student, about to begin class XII, and I’m preparing for all the engineering entrance exams for 2013. I have been sure of my career choice for nearly four years now, and have always enjoyed learning and building my knowledge. Here is my opinion on the change in the IIT  (Indian Institutes … Continue reading What is the point of education

Metabolism

Prof. Graham Walker from MIT explains in this video below the metabolism of glucose in a living cell. He starts off by explaining how glucose molecules gets converted to pyruvate in 10 enzymatic steps, including the production of 2 ATP and 2 NADH (electron currency of a cell), in a process called glycolysis. The Pyruvate then migrates to the mitochondrion to produce acetyl-CoA and eventually to CO2 … Continue reading Metabolism