11–20 of 35 posts
Out of curiosity is "superconductivity" an "all or nothing" phenomenon? ie. Is there such a thing as semi-superconductive?
p.s. I am aware that the article talks about O C and not 0 K.
Think of the thousands (millions?) of useless patents that are created for no other purpose than to extract monetary gain, at the cost of slowing down economic and technological growth, and read through the details of this detailed process that has been released for all to improve on.
Out of curiosity is "superconductivity" an "all or nothing" phenomenon? ie. Is there such a thing as semi-superconductive?
As a lapsed superconductivity physicist, I hate to burst the bubble. In the community there has been a long-standing joke about USOs, Unidentified Superconducting Objects, and it is well known that just because you see "Signs of Superconductivity" does not prove that something is superconducting. There are really three questions at hand: 1> Does the sample show the Meissner effect, 2> Does it show zero resistance, an…
I'll believe it when it's peer reviewed and reproduced.
It has been reproduced and journallized by Sharif University in Iran. It looks legit, but his spec sheet does indicate that there are problems with commercialisation. http://www.superconductors.org/276K.htm indicates how to reproduce and what results to expect. A regular freezer can sustain -5C to 5C. An ammonia freezer can go as low as -27C, so 3C is easy to hold. And the fact that he has been known for good results…
I'm somewhat ignorant of superconductors. I know that it's a material that has zero electrical resistance, so a current flowing along a loop of superconductive material will flow forever, or something like that. But what are the implications of finding a superconductive material over 0C, other than it's really cool to play with?
No offense intended but it definitely is a more complete list than what I could come up with off the top of my head. There's a wide variety of very practical applications, if a practical one can be found.
It should also be noted that while "room temperature" is the holy grail, there's a gradient of practicality that ranges along the necessary refrigeration technology. Even a superconductor that only require conventional refrigeration (ie, no liquid nitrogen or helium involved) could be put to good use, if it can be made practical in all necessary ways.
I'm somewhat ignorant of superconductors. I know that it's a material that has zero electrical resistance, so a current flowing along a loop of superconductive material will flow forever, or something like that. But what are the implications of finding a superconductive material over 0C, other than it's really cool to play with?
I want to believe this so bad. I'm just ... leery of one-man research being published on a blog.
Then, too, I also badly want to believe in the concept of one-man research published on a blog.
I believe a great deal in the capability of individuals to accomplish great things, but I don't care how ingenious the methods, how confident the claims, how insightful the theory... I want to see science as a group activity.
Because no matter how good you are, you need replication and criticism, and constant skeptical feedback. I'm not saying it's impossible to get that by yourself, but I certainly don't believe in it so much.
Earlier quoted context omitted.
Then, too, I also badly want to believe in the concept of one-man research published on a blog.
Sorry to burst your bubble, but I have to ask: why? I believe a great deal in the capability of individuals to accomplish great things, but I don't care how ingenious the methods, how confident the claims, how insightful the theory... I want to see science as a group activity. Because no matter how good you are, you need replication and criticism, and constant skeptical feedback. I'm not saying it's impossible to get…