I was browsing the discussion page for Stress in Wikipedia when I came upon this interesting comment:
"
Refutation of Cauchy stress
The theory of stress based on Euler & Cauchy is now refuted. The profound incompatibility of this theory with the rest of physics, especially the theory of potentials and the theory of thermodynamics, has been documented in
http://www.scienceblogs.de/lindaunobel/english-reports/
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Melanie Trottman reports on the presidential race.
Guests on the Sunday newsmaker shows, including California Gov. Arnold Schwarzenegger and John McCain adviser Carly Fiorina, spotlighted energy and the economy and paid tribute to former White House press secretary Tony Snow.
Teacher, Scientist, or Engineer
From thinking about the 'I'd Love to Change the World' discussion, I have concluded that my dilemma stems from the (basically) three career paths from which I can choose.
A teacher that can have a great deal of influence on a select number of other individuals' lives and can take great pride in helping others achieve their potential, and possibly make great contributions to society.
A scientist that can continue to explore the unexplained and hopefully discover something that could contribute to society.
http://www.newsweek.com/id/137512
How Many Friends Is Too Many?
One MySpace exec has even surprised himself by friending a potato. This particular russet has 2,965 friends.
There has been some discussion about the low ratio of replies to reads on iMechanica. While it's nice to think that a lot of people are reading our posts, I wonder how many of those 'reads' are really bots indexing the page. For example, I posted a blog entry last night around 11:00 and nine hours later it says it has been read 45 times. A couple of those can be attributed to me but I'm sure 40 real people have not read the post. Add to this the fact that the post is already showing up in Google.
...But I Don't Know What to Do...
...So I Leave It Up to You
by Ten Years After (http://en.wikipedia.org/wiki/Ten_Years_After or on iTunes)
i'm try to do a dynamic analysis by abaqus and i faced some problems.any help is appreciated.
The structure is a 3 layers plates,a viscoelastic material sandwich between 2 steels.i modeled the 2 steel as sheel 'S8R"and the rubber as contiuum "c3d20r",rubber is not thin. Now i don't know how to set the parameters requried by the Code.I hove some parameters abuout the viscoelastic material.,includeing shear storage modulus G(f)=exp(-2.69292)*f^(0.6937),and loss factor of the material L(f)=exp(0.60503)*f^(-0.08807), Possion ratio=0.49, where f is frequency in Hz.
I joined imechanica almost a year ago and I've been frequently following its interesting discussions, even the most animated ones. I think that a place like this is ideal to foster the exchange of ideas in the scientific community;
Moreover it is fantastic as a simple student like me can interact and easily ask questions to the most important researcher in the field of mechanics.
many researchers in industrial countries think the only problem of third world researchers is money but it is not true. I worked as a researcher for four years in one of this third world countries.
Computational and Theoretical research dont need much money as like as lab dependent research. because freeware and opensource became popular and (the copyright laws are not strict in these countries unfortunately).many experimental works also can be done with available facilities in these universities.
