sobota 24. apríla 2010
Sun - Solar Flare
Astronomy:
"Soon after the instruments opened their doors, the Sun began performing for SDO with this beautiful prominence eruption. This AIA data is from March 30, 2010, showing a wavelength band that is centered around 304 �. This extreme ultraviolet emission line is from singly ionized Helium, or He II, and corresponds to a temperature of approx. 50,000 degrees Celsius."
"Soon after the instruments opened their doors, the Sun began performing for SDO with this beautiful prominence eruption. This AIA data is from March 30, 2010, showing a wavelength band that is centered around 304 �. This extreme ultraviolet emission line is from singly ionized Helium, or He II, and corresponds to a temperature of approx. 50,000 degrees Celsius."
utorok 20. apríla 2010
Eyjafjallajökull volcano erupting
Geology:
A volcano eruption (Eyjafjallajökull) in Iceland has been causing a lot of havoc in the Northern Hemisphere in the past week, especially in Europe. It has grounded flights all across the continent and many people are stuck and can't get back home or to their destination. The interesting thing is that flights can get off in the main Iceland airports, since the ash is being carried south and the main airport for example in Keflavik is located more to the north. The last time the volcano erupted in the 19th century, it continued on erupting for more than two years from 1821 to 1823.
nedeľa 11. apríla 2010
Secret rivers in Antarctica
Biology/Geology:
Antarctica is an interesting continent. Once, millions of years ago, it actually had a lush landscape. However now most of it is a frozen wasteland of ice. Under the ice is a different story though. There are lakes and rivers flowing and they might even contain life.
"Antarctica's buried lakes are connected by a network of rivers moving water far beneath the surface, say UK scientists. It was thought the sub-glacial lakes had been completely sealed for millions of years, enabling unique species to evolve in them. Writing in the journal Nature, experts say international plans to drill into the lakes may now have to be reviewed. Any attempts to drill into one body of water risks contaminating others.
"What this paper shows is that not only could you contaminate a lake, you could contaminate the whole drainage system," lead author Duncan Wingham, of University College London, told the BBC News website."
"Secret rivers found in Antarctica." BBC News
Secret rivers in Antarctica
Antarctica is an interesting continent. Once, millions of years ago, it actually had a lush landscape. However now most of it is a frozen wasteland of ice. Under the ice is a different story though. There are lakes and rivers flowing and they might even contain life.
"Antarctica's buried lakes are connected by a network of rivers moving water far beneath the surface, say UK scientists. It was thought the sub-glacial lakes had been completely sealed for millions of years, enabling unique species to evolve in them. Writing in the journal Nature, experts say international plans to drill into the lakes may now have to be reviewed. Any attempts to drill into one body of water risks contaminating others.
"What this paper shows is that not only could you contaminate a lake, you could contaminate the whole drainage system," lead author Duncan Wingham, of University College London, told the BBC News website."
"Secret rivers found in Antarctica." BBC News
Secret rivers in Antarctica
European Union Concours for Administrators
There are actually some resources on the web for people trying to pass the concours for the European Union. Here's a webpage with discussions.
"So I won't be a Commission official." Jon Worth Blog
So I won't be a Commission official
"So I won't be a Commission official." Jon Worth Blog
So I won't be a Commission official
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