Since Epsilon Eridani is an orange dwarf, from the diagram you can see that somewhere around K and M. From this you can deduce that Epsilon Eridani is older than the Sun.
Bzzt! Oh I'm sorry, you've been a great contestant, thanks for playing. I quote from the article (which you did read, didn't you?):
Epsilon Eridani is a sun-like (K2V) star located in the constellation Eridanus 10.5 light years from Earth. Epsilon Eridani is much younger than our sun with an age estimated at less than one billion years.
You're right, at great depths the hydrogen gas in Jupiter's atmosphere is forced into a liquid metallic state by the immense pressure. However, Jupiter does actually have a core made of rock that is believed to be about four times as heavy as the Earth. I think it would probably be liquid at those temperatures and pressures though (like the core of the Earth).
The hydrogen can act as a metal as it can lose an electron to empty its innermost electron shell (remember the periodic table, where hydrogen appears twice - it can also gain an electron to complete its innermost electron shell, so it acts as a non-metallic element too). The large swirling mass of liquid metal is believed to be the cause of Jupiter's immense magnetic field and strong radio emissions.
Jon Katz is just the latest of a long line of people who have parroted the argument that labour saving devices will give us vast tracts of leisure time in which we can goof off. But the point that Jon seems to completely miss is that we still need to eat, and all these wonderful devices need power - so who's going to pay the food and electric bills, Jon? *That* is why people still have stressful jobs - to earn money. As long as we still need money, we'll still be doing more and more work to earn as much money as we can. The only way to end this would be to advance to the stage where everyone had enough free power and free goods for their needs. This can't be done today, but once someone develops the nanotech to create food from inanimate matter molecule-by-molecule, and these nanotechs could be powered by solar power or some other power source (direct matter to energy conversion on your household garbage, for instance), then society could move to 100% leisure time. Let's hope it happens soon, it sounds good to me!
Put these typedefs in a convenient header file, and it takes care of the types. The Win32 calls are a different matter, but usually you can write your own stubs to get things to compile - implementing them is left as an exercise for the reader!
Here are my typedefs:
typedef long int COLORREF; typedef long int DWORD; typedef long int LONG; typedef long int LPARAM; typedef int* LPINT; typedef char* LPSTR; typedef char* LPTSTR; typedef const char* LPCSTR; typedef const char* LPCTSTR; typedef long int LRESULT; typedef long int POSITION; typedef char TCHAR; typedef unsigned int UINT; typedef void VOID; typedef long int WPARAM;
Moderators, please moderate the parent up! Thanks for posting it, it works great. We've now re-enabled external email and it's bounced about a million virus emails so far...
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Bzzt! Oh I'm sorry, you've been a great contestant, thanks for playing. I quote from the article (which you did read, didn't you?):
Epsilon Eridani is a sun-like (K2V) star located in the constellation Eridanus 10.5 light years from Earth. Epsilon Eridani is much younger than our sun with an age estimated at less than one billion years.You're right, at great depths the hydrogen gas in Jupiter's atmosphere is forced into a liquid metallic state by the immense pressure. However, Jupiter does actually have a core made of rock that is believed to be about four times as heavy as the Earth. I think it would probably be liquid at those temperatures and pressures though (like the core of the Earth).
The hydrogen can act as a metal as it can lose an electron to empty its innermost electron shell (remember the periodic table, where hydrogen appears twice - it can also gain an electron to complete its innermost electron shell, so it acts as a non-metallic element too). The large swirling mass of liquid metal is believed to be the cause of Jupiter's immense magnetic field and strong radio emissions.
Oh no, I just fed a troll... D'oh!
Jon Katz is just the latest of a long line of people who have parroted the argument that labour saving devices will give us vast tracts of leisure time in which we can goof off. But the point that Jon seems to completely miss is that we still need to eat, and all these wonderful devices need power - so who's going to pay the food and electric bills, Jon? *That* is why people still have stressful jobs - to earn money. As long as we still need money, we'll still be doing more and more work to earn as much money as we can. The only way to end this would be to advance to the stage where everyone had enough free power and free goods for their needs. This can't be done today, but once someone develops the nanotech to create food from inanimate matter molecule-by-molecule, and these nanotechs could be powered by solar power or some other power source (direct matter to energy conversion on your household garbage, for instance), then society could move to 100% leisure time. Let's hope it happens soon, it sounds good to me!
Put these typedefs in a convenient header file, and it takes care of the types. The Win32 calls are a different matter, but usually you can write your own stubs to get things to compile - implementing them is left as an exercise for the reader!
Here are my typedefs:
typedef long int COLORREF;
typedef long int DWORD;
typedef long int LONG;
typedef long int LPARAM;
typedef int* LPINT;
typedef char* LPSTR;
typedef char* LPTSTR;
typedef const char* LPCSTR;
typedef const char* LPCTSTR;
typedef long int LRESULT;
typedef long int POSITION;
typedef char TCHAR;
typedef unsigned int UINT;
typedef void VOID;
typedef long int WPARAM;
Moderators, please moderate the parent up! Thanks for posting it, it works great. We've now re-enabled external email and it's bounced about a million virus emails so far...
Pete.