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Què hi ha avui per dinar? Menú científic o menú yámana?

Tue, 09 Feb 2010 02:04 GMT

Diari de recerca. Però tornant a l’equip que està a Terra del Foc...

Recula 600 milions d'anys

Mon, 08 Feb 2010 06:23 GMT

Interactiu

El joc de l'evolució

Mon, 08 Feb 2010 06:23 GMT

Interactiu

Reconeix el cant dels ocells

Mon, 08 Feb 2010 06:22 GMT

Interactiu

Un "Trivial" interactiu sobre ciència

Mon, 08 Feb 2010 06:20 GMT

Interactiu

Fem un ou ferrat de color verd per visualitzar el ph

Mon, 08 Feb 2010 05:48 GMT

Experiment. Cansats de menjar ous ferrats convencionals? Doncs anem a cuinar-ne un de color verd! També fabricarem llimonada vermella i, de passada, trobarem una manera de visualitzar el ph.

Fes una cromatografia a una taca

Mon, 08 Feb 2010 05:39 GMT

Experiment. Reprodueix aquesta tècnica analítica a la cuina de casa.

Visualitzem la pressió atmosfèrica amb llaminadures

Mon, 08 Feb 2010 05:28 GMT

Experiment. T’has parat mai a pensar el que significa la pressió atmosfèrica sobre el nostre cos i la resta de coses que hi ha al planeta Terra? Aquest experiment ajuda a visualitzar-ho.

Simula una erupció volcànica!

Mon, 08 Feb 2010 05:18 GMT

Experiment. Aquest experiment fa visible la pujada del magma per l’escorça terrestre.

Un guèiser de sidral per veure les reaccions àcid-base

Mon, 08 Feb 2010 05:06 GMT

Experiment. Aquest experiment ens servirà per fer un experiment força visual. La intenció és provocar un guèiser a partir d’aigua, bicarbonat i sidral. Atenció a la reacció química!

Crossing the Antarctic Circle

Sat, 06 Feb 2010 13:27 GMT

Temperature 3°C, wind 5 kts, 1 meter swells

Position: 63º 33’ 39’’S, 136º 59’E
Water Depth: 1000 meters
Exact Location: The Antarctic Circle

ABOARD THE JOIDES RESOLUTION, OFF THE COAST OF WILKES LAND, ANTARCTICA– Yes, we crossed the Antarctic Circle today! I think it may be the first time this ship has ever done so. All points south of the Antarctic Circle experience at least one day every year of total darkness and likewise one day every year when the sun never completely sets. We are now in early February so the sun does set but only for 4 hours and it never gets really dark. As a member of the night shift out here, I love this…I get up at 11PM, come on shift at midnight. The sun sets around 1 AM and rises again around 5 AM. I get to see both and when the weather is good, the colors are spectacular.

Moon set behind our drilling derrick.

Dawn at 0330 in the AM.

We are now working at one of our shallow continental shelf sites, called U1358. We just finished the major site for which I am the lead scientist. This site was cored very successfully. The water is a 1000 meters deep and the spot we cored is like a big dish at the seafloor, with lots of small sediment particles drifting into it.

Here you can see the annual layers in the sediment cores we collected.

The sediments accumulate at a rate of 2 cm every year and leave an annual layer – a summer deposit made up of microscopic plants and a winter layer made up of dust and silts carried by the wind and the ice. We can see each layer and each layer represents one year. It looks as though we can count these layers back over 10,000 years. The record may not be perfectly continuous, we don’t know yet, but we do know that we have 470 meters of layered mud to work on and that it will tell how the sea ice and temperature of Antarctic surface and deep waters has changed on a year-to-year basis for many thousands of years…..

The core sampling table where this bag holds the last of more than 2300 samples taken from one Hole.

We save EVERYTHING There are more boxes on this ship than you would believe.

Everyone on board worked long hours to get this site completed, many for 18 to 20 hours each day. So, when we have a transit day to another site we get to rest, but we also have a chance to cross the Antarctic Circle. Everyone is excited and a bit relaxed, both at the same time! The weather is sunny and warm today but tonight we expect a big storm to begin, one with winds gusting to over 60 kts and waves as high as 25 feet. It might last 2 to 3 days, a problem for us as it is difficult to work in such stormy conditions. I’ll let you know how it turns out!

This is mainly the night shift at the bow of the Joides Resolution as we cross the Antarctic Circle.

Your correspondents Rob and Christina on the Antarctic Circle.

Bad weather on Schirmacher Oasis

Fri, 05 Feb 2010 12:23 GMT

31 January 2010

Hello,

We have arrived to Novo well. We live in ALCI guesthouse. We are now visiting the Indian station of Maitri, and take the opportunity to send an email..
Everything is OK except the weather.

Best wishes to all, Zorigto

3 February 2010

We are staying in a guest house of ALCI. Everything is OK. We have met with the Director of Russian Antarctic Expedition, Prof. V.V. Lukin, and thanked him for the possibility to come and work here. I did a presentation about us and about the Princess Elisabeth Station. Everybody was very interested in their closest neighbour at the Eastern side (410 km).

People are very friendly and hospitable, the scientists help us with the orientation in this new place and for choosing of the right spots for our analyses. Unfortunately, we cannot use their advices because the wind is about 20 m/s (72 km/h) and will not decrease within the next days. It's too windy even for the sampling of lithophytic cyanobacterial crusts which are very abundant here. Any sampling on the ice sheet or coring from the boat is, of course, absolutely impossible. The only experiment that we could start is the air filtration. We have installed a vacuum pump on the meteorological station in the Eastern part of the Oasis. The wind comes directly from the East.

My conclusion is that, in fact for such expeditions, it is good to have 2 types of experiments: one for good weather and one for bad meteo. So at least, half of the experiments will be done. As you guess, I feel a bit frustrated.

Best wishes,

Zorigto

P.S. Now we came to the Indian station of Maitri to send e-mails and bring materials for the DELAQUA team, Elie and Steve. The weather is improving and we can start to work.