Saturday, March 12, 2011



Jueves 10 de marzo de 2011 Andrés Eloy Martínez | El Universal

Aunque esta potente señal no fue identificada, los astrónomos detectaron características que la delatan como de origen terrestre

A principios de febrero, el gigantesco radiotelescopio de 305 metros de diámetro instalado en Arecibo Puerto Rico, realizaba su cotidiana labor de búsqueda de señales de radio de origen extraterrestre (Proyecto SETI), cuando se topó con una señal de intensidad inusual que la NASA consideró como un probable señal proveniente de alguna civilización extraterrestre, según dio a conocer la agencia espacial.

"Nadie conoce la causa de esta señal. Existe la posibilidad de que se haya originado en una inteligencia extraterrestre", señala un comunicado publicado en internet, que muestra una fotografía con la gráfica de la señal detectada.

Los colores brillantes sobre el azul de fondo de esta, indican que una señal anómala fue recibida en la Tierra por un radiotelescopio involucrado en el programa de Búsqueda de Inteligencia Extraterrestre (Search for Extraterrestrial Intelligence, SETI).

De acuerdo con la NASA, distintos grupos realizan la investigación de estas señales, incluyendo a miembros voluntarios de la Liga SETI, agrupación de entusiastas en la búsqueda de inteleigencia extraterrestre.

Aunque esta potente señal no fue identificada, los astrónomos identificaron características que la delatan como de origen terrestre. Si bien aun no se puede precisar el origen exacto de la señal, es factible que se haya originado en una modulación fortuita entre un satélite GPS y una fuente terrena no identificada.

Según la NASA ,muchas señales extrañas provenientes del espacio, todavía no han sido identificadas.

Hasta hoy, ninguna señal ha sido lo suficientemente potente o prolongada para para que se le identifique sin ambigüedad como originaria de una inteligencia extraterrestre.

El proyecto Argus de la liga SETI, ha dado seguimiento a las señales extrañas, desde la famosa "Wow" captada en 1977, muchas de ellas detectadas una sola vez y jamás vueltas a escuchar.

El entusiasmo de los científicos por encontrar inteligencias extraterrestres ha crecido en los últimos años, ante el hallazgo de exoplanetas, que podrían existir en un número alrededor de 50 mil millones, sólo en nuestra galaxia, de los cuales 500 mil podrían tener vida, que pudo evolucionar como en la Tierra, hacia inteligencias similares a la humana.

Para un gran número de científicos la pregunta no es si existen criaturas pensantes como nosotros, sino cuando haremos contacto con ellas.


No one knows for sure what caused this signal. There is a slight possibility that it just might originate from an extraterrestrial intelligence. The bright colors on the blue background indicate that an anomalous signal was received here on Earth by a radio telescope involved in a Search for Extraterrestrial Intelligence (SETI). A search for these signals is ongoing by several groups including volunteer members of the SETI League. Time labels the vertical axis of the above plot, and frequency marks the horizontal axis. Although this strong signal was never positively identified, astronomers have identified in it many attributes characteristic of a more mundane and ultimately terrestrial origin. In this case, a leading possibility is that the signal originates from an unusual modulation between a GPS satellite and an unidentified Earth-based source. Many unusual signals from space remain unidentified. No signal has yet been strong enough or run long enough to be unambiguously identified as originating from an extraterrestrial intelligence.

Tuesday, March 8, 2011


International Women's Day has been observed since in the early 1900's, a time of great expansion and turbulence in the industrialized world that saw booming population growth and the rise of radical ideologies.
Great unrest and critical debate was occurring amongst women. Women's oppression and inequality was spurring women to become more vocal and active in campaigning for change. Then in 1908, 15,000 women marched through New York City demanding shorter hours, better pay and voting rights.
In accordance with a declaration by the Socialist Party of America, the first National Woman's Day (NWD) was observed across the United States on 28 February. Women continued to celebrate NWD on the last Sunday of February until 1913.
n 1910 a second International Conference of Working Women was held in Copenhagen. A woman named a Clara Zetkin (Leader of the 'Women's Office' for the Social Democratic Party in Germany) tabled the idea of an International Women's Day. She proposed that every year in every country there should be a celebration on the same day - a Women's Day - to press for their demands. The conference of over 100 women from 17 countries, representing unions, socialist parties, working women's clubs, and including the first three women elected to the Finnish parliament, greeted Zetkin's suggestion with unanimous approval and thus International Women's Day was the result.
Following the decision agreed at Copenhagen in 1911, International Women's Day (IWD) was honoured the first time in Austria, Denmark, Germany and Switzerland on 19 March. More than one million women and men attended IWD rallies campaigning for women's rights to work, vote, be trained, to hold public office and end discrimination. However less than a week later on 25 March, the tragic 'Triangle Fire' in New York City took the lives of more than 140 working women, most of them Italian and Jewish immigrants. This disastrous event drew significant attention to working conditions and labour legislation in the United States that became a focus of subsequent International Women's Day events. 1911 also saw women's 'Bread and Roses' campaign.

On the eve of World War I campaigning for peace, Russian women observed their first International Women's Day on the last Sunday in February 1913. In 1913 following discussions, International Women's Day was transferred to 8 March and this day has remained the global date for International Wommen's Day ever since. In 1914 further women across Europe held rallies to campaign against the war and to express women's solidarity.
On the last Sunday of February, Russian women began a strike for "bread and peace" in response to the death over 2 million Russian soldiers in war. Opposed by political leaders the women continued to strike until four days later the Czar was forced to abdicate and the provisional Government granted women the right to vote. The date the women's strike commenced was Sunday 23 February on the Julian calendar then in use in Russia. This day on the Gregorian calendar in use elsewhere was 8 March.
1918 - 1999
Since its birth in the socialist movement, International Women's Day has grown to become a global day of recognition and celebration across developed and developing countries alike. For decades, IWD has grown from strength to strength annually. For many years the United Nations has held an annual IWD conference to coordinate international efforts for women's rights and participation in social, political and economic processes. 1975 was designated as 'International Women's Year' by the United Nations. Women's organisations and governments around the world have also observed IWD annually on 8 March by holding large-scale events that honour women's advancement and while diligently reminding of the continued vigilance and action required to ensure that women's equality is gained and maintained in all aspects of life.
2000 and beyond
IWD is now an official holiday in Afghanistan, Armenia, Azerbaijan, Belarus, Burkina Faso, Cambodia, China (for women only), Cuba, Georgia, Guinea-Bissau, Eritrea, Kazakhstan, Kyrgyzstan, Laos, Madagascar (for women only), Moldova, Mongolia, Montenegro, Nepal (for women only), Russia, Tajikistan, Turkmenistan, Uganda, Ukraine, Uzbekistan, Vietnam and Zambia. The tradition sees men honouring their mothers, wives, girlfriends, colleagues, etc with flowers and small gifts. In some countries IWD has the equivalent status of Mother's Day where children give small presents to their mothers and grandmothers.
The new millennium has witnessed a significant change and attitudinal shift in both women's and society's thoughts about women's equality and emancipation. Many from a younger generation feel that 'all the battles have been won for women' while many feminists from the 1970's know only too well the longevity and ingrained complexity of patriarchy. With more women in the boardroom, greater equality in legislative rights, and an increased critical mass of women's visibility as impressive role models in every aspect of life, one could think that women have gained true equality. The unfortunate fact is that women are still not paid equally to that of their male counterparts, women still are not present in equal numbers in business or politics, and globally women's education, health and the violence against them is worse than that of men.
However, great improvements have been made. We do have female astronauts and prime ministers, school girls are welcomed into university, women can work and have a family, women have real choices. And so the tone and nature of IWD has, for the past few years, moved from being a reminder about the negatives to a celebration of the positives.
Annually on 8 March, thousands of events are held throughout the world to inspire women and celebrate achievements. A global web of rich and diverse local activity connects women from all around the world ranging from political rallies, business conferences, government activities and networking events through to local women's craft markets, theatric performances, fashion parades and more.
Many global corporations have also started to more actively support IWD by running their own internal events and through supporting external ones. For example, on 8 March search engine and media giant Google some years even changes its logo on its global search pages. Year on year IWD is certainly increasing in status. The United States even designates the whole month of March as 'Women's History Month'.
So make a difference, think globally and act locally !! Make everyday International Women's Day. Do your bit to ensure that the future for girls is bright, equal, safe and rewarding.