Badly crystallized wrought iron

What Hath We Wrought?

Variability of the Mechanical Properties of Wrought Iron from Historic American Truss Bridges

The mechanical properties of wrought iron from multiple elements of six late 19th-century truss bridges is evaluated by a program of destructive and nondestructive testing, including hardness testing and tension tests to evaluate the yield stress (Fy), tensile strength (Fu), and ductility of the material. The yield stress and tensile strengths are found to be in accordance with those published ...

Crystallized Therapy

The volume consists of a series of prescriptions and instructions for the management of the diseases in a compact form. In the treatment of certain diseases the village doctors might be misled on following the directions given by the author. One does not follow Dr. Parulkar when he says in the prophylaxis of malaria ' never sleep in a room inhabited by a malarious patient and use boiled water'....

Legislating Technology (Badly)

D ue to the computational power of underlying platforms, digital kill switches have a much broader capability and use than earlier industrial panic switches. In the case of mobile computing devices and smartphones, the purpose of the kill switch is to make theft unattractive. Protections include " wiping " the data off the device and/or " bricking " the device so that it is unusable. Consumer R...

Complex Hermite-Gaussians Behaving Badly

An entirely analytical derivation shows that Seshadri’s simplified series suffers from the same defect as our original series. Moreover, the quantitative description of the side lobes that comes from this asymptotic analysis is fully consistent with our previous qualitative description of the L2 behavior of our apparently more complicated series. The previous analysis is also extended to the ex...