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Recent Answers

2016-06-23 Entomology (Study of Bugs) - Unknown bug....:

Hi, Jennifer:    Thanks for including the nice image.    The insect is a longhorned beetle known as the "Red-headed Ash Borer," Neoclytus acuminatus.  Here's more about it:

2016-06-23 Archaeology - Dimond shaped rocks:

Hi Mr. Skaggs    These are quite unusual.  Were they laying flat like a pavement or on edge or in some other manner?  Are they thin?  Are the edges smooth or sharp?  Do you know if they are limestones?

2016-06-23 Geometry - Irrational Numbers and Roots:

Hi Apsara,    First and foremost, let's get the definition clear.  An irrational number is a number that cannot be expressed in the form of p/q, where p and q are both integers.  More on this in

2016-06-23 Archaeology - Dimond shaped rocks:

Good Morning Mr. Skaggs,    With out seeing a photo of the diamond shaped rocks it is impossible to identify them with any certainty.  But,  if they are clear like glass, with a pointy end and have straight

2016-06-23 Civil Engineering - Negative stiffness:

Hi Ravi,    No, you should correct the problems before proceeding. Display the deformed shape in 3-D (with large scale), then animate and look carefully where there are nodes or elements that are vibrating


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