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A wonderful collection of quotes from Leonardo da Vinci, each fantastic

Submitted by Mike Ciavarella on

A well-spent day brings happy
sleep.

Leonardo da Vinci



All our knowledge has its origins
in our perceptions.

Leonardo da Vinci



Although nature
commences with reason and ends in experience it is

necessary for
us to do the opposite, that is to commence with experience

and
from this to proceed to investigate the reason.

Leonardo da
Vinci



Anyone who conducts an argument by appealing to
authority is not using

his intelligence; he is just using his
memory.

Does a scientist who has had three patents in the past five years, but only three papers, each cited just three times, deserve m

Submitted by Mike Ciavarella on

From the blogosphere

Nature 453, x (2008). doi:10.1038/7196xc

Does a scientist who has had three patents in the past five years,
but only three papers, each cited just three times, deserve more
recognition than one with five Nature papers and 1,000 citations? 

 

Can anyone download the full paper I have no access to Nature!!!! 

A crucial text from Jim Rice of his Timoshenko's medal speach.

Submitted by Mike Ciavarella on



It is difficult to reminisce over my own formative years without sensing

the sharp contrast with the far more difficult situation faced by the

young generation today. My generation, and especially my own narrow age

range within that generation, had things easier, I think, than any group

before or after. I entered Lehigh for undergraduate studies one year

after Sputnik. It was a time when support for science and engineering

was enlarging fast, when opportunities were abundant. There were plenty

Maximum entropy coordinates for arbitrary polytopes

Submitted by N. Sukumar on

In the attached paper, we construct new generalized coordinates for arbitrary polytopes in d-dimensions (polygons and polyhedra in 2- and 3-dimensions, respectively) using the principle of maximum entropy. The paper is to appear in Computer Graphics Forum and will be presented at the SGP'08 Conference in Denmark.  

Load-displacement curve for concrete

Submitted by Gouse on

Hi

I am trying to predict load-displacement curve for concrete cube numerically through ABAQUS. I am just beginer with ABAQUS, I have gone through the concrete material models available in ABAQUS. I found that smeared crack model well suite for analysis. Initially I am simulating a 2D model, I am using plane stress elements with static, Riks options, even I could able to complete the analysis, I am confused how to view the cracked elements and how to plot load-displacement curve.