All about Ripening Bananas A.K.A. Do bananas have souls?

I've long heard that putting fruit like bananas in a paper bag will ripen them faster - something to do with the gases given off speeds up the ripening process and the bag somehow traps these gases. But with every produce expert online there still doesn't seem to be any measure of how much faster the ripening occurs so I decided to do some experiments of my own. I called these experiments "Do bananas have souls?" after the famous "scientific" study on human souls by Duncan MacDougall.

Amy Winehouse and the Forever 27 Club

Now, I'm not a avid fan of Amy Winehouse myself but her death yesterday (23 July 2011) has given me reasons to pause. For one, I'm also 27 this year. Two, there is something about the age of 27 that claims the life of of musicians.

For those unfamiliar with the Forever 27 Club:
Between 1969 and 1971, four famous artists died at the age of 27, Brian Jones of the rolling stones (3 July 1969), Jimi Hendrix (18 September 1970), Janis Joplin (4 October 1970), and Jim Morrison of The Doors (3 July, 1971). The coincidence of their deaths lead to the creation of the Forever 27 Club. Years later, Kurt Cobain killed himself and joined the club also (5 April, 1994). One thing all these member have in common is rock & roll and drugs. With the exception of Morrison, all the members were known heavy drug users. Some speculate that even Morrison was under the influence of drugs during his death - no autopsy was preformed in his case but some conflicting reports suggest he was using at the time of death.

Cloning a Trachea

In the news there is a story about a man from Eritrea going to school in Iceland recovering from surgery in Sweden where a surgeon born in Italy recently gave him a new trachea grown in a bioreactor from the United States composed of synthetic scaffold designed in the United Kingdom and the man's own stem cells! The world is certainly getting smaller and the smaller it gets the more specialists like surgeon Paolo Macchiarini and others can collaborate to make stories like this possible. I'm posting this because it's a relevant update to a blog entry I made recently on Cloning.

Water Conservation in the Home

The story of water in Brazil is a tale of contrasts. On one side, Brazil holds 12% of the world’s fresh surface waters, is home to the largest natural rainforest and second longest river in the world, the Amazon. The Amazon discharges an average 200 million liters of water per second, one fifth of the entire global river output (learn more). On the other side, 25% of Brazil's population lives in the state of São Paulo where less than 2% of that water is found. Sadly, not everyone in living in Brazil can afford clean water supply and sanitation. The good news is that the Brazilian government has been making a lot of progress on this issue.

I recently came across a very interesting TV ad that aired in Brazil advocating water conservation (shown below). This commercial put out by SOS Mata Atlantica urges viewers to pee in the shower. To most people, this might seem like a crazy idea just to save a little extra water but, as the ad points out one flush can use up to 12 liters of drinking water (4380 liters per year). As pointed out above, certain parts of Brazil could benefit greatly from this kind of conservation.

Cloning

I recently read about a survey that shows Americans are more accepting of cloned food than Europeans. Right now we are on the cusp of a new era. Today, the practice of cloning is limited to a small number of labs around the world. Tomorrow, cloning of livestock, pets, and even people could be commonplace.

There are several advantages and disadvantages of cloned livestock. Most obviously, farmers can clone the most desirable animals for leanness, milk production, taste, and so on. Farmers could also select clones that are resistant to certain strains of disease. However, this lack of genetic diversity could leave the industry open to other diseases (read here for more). There is also evidence that cloned animals suffer more liver and kidney aliments, die younger, and reach puberty later (RSPCA).

The Rise and Fall of the Electric Street Car Part II: The Beginning of the End

The success of the electric street car was short-lived. The Great Depression forced many routes in United States to close. There was a brief life-line for the electric trolley during the Second World War when rubber and gas were rationed and factory workers turned to mass transit. Production of wartime materials limited the possible of growth (from 1942-1943 there was little change in the total number of cities with electric street cars). However, the end of the war brought and increase in automobile use and a decline in street car use to the already struggling street car lines. By the 1960s the electric street car could only be found in a hand full of cities across North America.Growth and decline of the Electric Streetcar. Solid red area is number of cities with an electric streetcar in operation; transparent red area represents possible cities (for lack of complete records) that may have been in operation.

Service provided by the electric street car was most often replaced by buses which were seen as more flexible and requiring less infrastructure than the electric rail counterpart. This shift from electric trolley to bus has led many to believe that a union of automobile, oil, and tire companies was responsible for the dismantling of what otherwise appeared to be a productive public utility.

The possibility of a conspiracy against the electric streetcar is at least likely given the circumstances publicly known. In 1949, General Motors together with Standard Oil (now Cheveron) and Firestone were convicted of conspiring to monopolize the sale of buses and related products to local transit authorities. The goals of this group were to promote the use and sale of buses, tires and gasoline: three things not needed in cites with electric streetcars. Therefore the use of such a transit system often came at the cost of reduced or complete dismantling of electric street car routes.

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Trading with Bitcoins Part II

Yesterday, I shared some of my experiences in Bitcoin trading. Since then, a few more important details have come to my attention. I mentioned that MtGox was the primary way of trading BTC for USD. So much so that the public activity on MtGox generally controls the trade value of BTC outside of MtGox. By talking to some people in the IRC channel I found out that MtGox is either frequently targeted by Denial of Service attacks or other mischievous which brings trading to a standstill.

Fortunately, there is a rising star in the Bitcoin trade industry, TradeHill. The volume of trades is low compared to MtGox but growing and the price is usually close to MtGox. I have yet to try out TradeHill myself (transferring from MtGox is down). Most people who have tried it like the interface and the lower trading fees on TradeHill. Speaking of which: using the referral code TH-R12942 will get you an additional life-time 10% discount on trading fees.