President Theodore ‘Teddy’ Roosevelt commenting on seeing the Grand Canyon

Read more about the US National Parks and President Teddy Roosevelt at http://www.nps.gov and  http://blogs.nashualibrary.org/reference/2009/09/leave_it_as_it_is_1.html

A team of Yale University researchers has discovered a “repulsive” light force that can be used to control components on silicon microchips, meaning future nanodevices could be controlled by light rather than electricity. The team previously discovered an “attractive” force of light and showed how it could be manipulated to move components in semiconducting micro- and nano-electrical systems—tiny mechanical switches on a chip. The scientists have now uncovered a complementary repulsive force.

Cool factoid of the day from the article: “More moisture typically evaporates from rainforests than from the ocean. The Amazon rainforest, for example, releases 20 trillion litres of moisture every day.”

How can forests create wind? Water vapour from coastal forests and oceans quickly condenses to form droplets and clouds. The Russians point out that the gas takes up less space as it turns to liquid, lowering local air pressure. Because evaporation is stronger over the forest than over the ocean, the pressure is lower over coastal forests, which suck in moist air from the ocean. This generates wind that drives moisture further inland. The process repeats itself as the moisture is recycled in stages, moving towards the continent’s heart (see diagram). As a result, giant winds transport moisture thousands of kilometres into the interior of a continent.

…conventional desalination and reuse technologies use substantial energy. “forward osmosis,” exploits the natural diffusion of water through a semi-permeable membrane. Their process “draws” pure water from its contaminants to a solution of concentrated salts, which can easily be removed with low heat treatment — effectively desalinating or removing contaminants from water with little energy input.

The concentrated salt solution is probably a mixture of ammonia and/or carbon dioxide dissolved in water. The ammonia and CO2 are later easily boiled off and reused. The energy required for this quite less even low-cost solar heaters may be sufficient.

Scientists have developed a new catalyst that could make ethanol-powered fuel cells feasible. The highly efficient catalyst performs two crucial, and previously unreachable steps needed to oxidize ethanol and produce clean energy in fuel cell reactions.

Consumers are hurting, but if Mint’s data is indicative of the economy as a whole, it is not as bad as you might think….(mint.com customers) are spending $400 less each month than they were a year ago, have burned through half of their savings, and on average have taken on an additional $5k in debt.

Fortunately credit card debt has not gone up substantially yet but we may still need to watch out for a credit card crisis as job losses continue. On the other hand, a robust spending by the government could replace consumer demand by government demand and in turn put people into work and money into their pockets. Theoretically, this sounds good, but only time can tell if it is possible practically.

Your thoughts / comments are welcome. Here is the link to the recycled paper house.

Thanks,

Sayan

www.helpgaurav.com/

Gaurav Tandon is a 34 year old professional working with Datacraft Asia (a private IT firm) in Mumbai, India. His small family comprises wife, a 6 year old son. He has two elder sisters both are happily married and a brother who is serving as Captain in the Indian Army.

Gaurav was detected with AML (a type of Blood Cancer) in November 2008. He has responded well to chemotherapy, but must get a Bone Marrow Transplant as the only possibility for a cure. Unfortunately the HLA typing test of his siblings is negative. Doctors have therefore strongly recommemded a Non-Related Allogenic transplant. Since such transplantations are rarely performed in India, there is a high chance that we have to take him to places like Singapore, UK or the USA.

The estimated cost of the treatment in Singapore and UK is around 1.5 Crore Indian Rupees (around US$ 333,000), whereas in the US is around of 2 Crore Indian Rupees (around US$ 444,000).

In order to meet the steep cost of the said operation, Gaurav and his family have decided to sell their solitary flat at Thakur Village Complex, Kandivili, Mumbai. However, this is not going to be enough, since the amount required for the treatment is huge and time is less.

Let us all come together to help Gaurav. Together we can reach out to our communities and remind them that we – members of Gaurav’s family, community and country have a responsibility to help. Let us all remember that Gaurav is also a son, a brother, a father and a husband. We should all see ourselves in Gaurav and realize that he deserves the same support we would wish for member of our own family or even ourselves.

www.helpgaurav.com/