princess leia

Does Mars still have a liquid core, or has it solidified? Place your bets.

http://science.nasa.gov/headlines/y2010/24feb_mart...

Many countries are represented on Yahoo International. Why isn't the Middle East represented at all? They do have a space agency headed by the United Arab Emirates: AUASS.

Spirit and Opportunity are lonely. They're hoping some friends from Earth will join them someday. Assume a magnetic field is in place to protect them from cosmic rays. Which animal would you send and why?

How would we celebrate major holidays on the moons and Mars?

This is a start! We need to bring them on board to all the latest technological advances so they can begin colonizing all the moons/space. They probably lack the technical know how to do it. Any ideas?

Has anyone seen a follow up to this article? This is the answer to all of their problems in the Middle East, no?

http://www.arabianbusiness.com/497805-astronomers-...

I just watched a video which shows rheindeer are being endangered by global warming. Apparently weather fluctuations have created a pattern of extreme cold, followed by a thaw, then it's cold again. The slush forms into ice, which the rheindeer can't poke thru to get at the moss, which is their primary sustenance.

It's that time again. Nominate your favorite space film and cast your votes!

My favorite film of all time is: Failure is Not an Option.

We need some microprocessors to monitor the magnetic field of the moon and Mars. The field should stay at 0.5 and 2.0 (horizontal and vertical components); if the field drops, the atmosphere could dissipate into outer space, and expose its inhabitants to cosmic rays. Do we have such a product?

How come there isn't a mall on the moon yet? Or supermarkets, or deli's?! We need some space U-Hauls and movers.

FYI - Two experiments (one in Karlsruhe and another one in Riga) have already been successful in generating a self-excited magnetic field. Other experiments (in Cadarache, Madison, and Maryland) have not reached the critical magnetic Reynolds number yet but have been useful in exploring the approach to self-excitation.

http://nsdl.org/resource/2200/20061215094513138T

Karlsruhe Dynamo Project, click on "full text" to download pdf file.

http://arxiv.org/abs/physics?papernum=0010047

click on upper right corner to download pdf file (free)

Avoiding Quenching in Superconducting Rings

http://arxiv.org/pdf/cond-mat/0305392

Roll call. We will be embarking on our first voyage to Europa, one of the Galilean moons. Do I have your full support? I need a staff of engineers, chemists and geophysicists on board. Tasty Free meals and clean living quarters.

Semper Fi.

I only know of a handful but heard about a few that I never knew about. How many in total are there, anyone know?

How do you measure Earth's main field near the core, would it be around 100,000 Gauss or 10 Teslas? What equations do I use? Background info: The internal field of the Earth (its "main field") appears to be generated in the Earth's core by a dynamo process, associated with the circulation of liquid metal in the core, driven by internal heat sources. Its major part resembles the field of a bar magnet ("dipole field") inclined by about 10° to the rotation axis of Earth, but more complex parts ("higher harmonics") also exist, as first shown by Carl Friedrich Gauss. The dipole field has an intensity of about 30,000-60,000 nanoteslas (nT) at the Earth's surface, and its intensity diminishes like the inverse of the cube of the distance, i.e. at a distance of R Earth radii it only amounts to 1/R³ of the surface field in the same direction. Higher harmonics diminish faster, like higher powers of 1/R, making the dipole field the only important internal source in most of the magnetosphe

I need clarification as to whether persistent currents can last for 1,023 years or 10 to the 23rd power (indefinitely). There's a huge difference in magnitude between these two figures.

Thx.

I need clarification as to whether persistent currents can last for 1,023 years or 10 to the 23rd power (indefinitely). There's a huge difference in magnitude between these two figures.

Space is a cold environment, and superconductors only operate under cold conditions. How can we exploit the phenomenon of superconductivity to overcome problems in Space? What inventions would make use of superconductive materials like YBCO (yttrium barium copper oxide)?