This paper investigates the utility of the Magic Lens metaphor on small screen handheld devices for map navigation given state of the art computer vision tracking. We investigate both performance and user experience aspects. In contrast to previous studies a semi-controlled field experiment (n=18) in a ski resort indicated significant longer task completion times for a Magic Lens compared to a ...

For any h ∈ IN , a graph G = (V, E) is said to be h-magic if there exists a labeling l : E(G) −→ ZZ h − {0} such that the induced vertex set labeling l : V (G) −→ ZZ h defined by l(v) = ∑ uv∈E(G) l(uv) is a constant map. For a given graph G, the set of all h ∈ ZZ + for which G is h-magic is called the integer-magic spectrum of G and is denoted by IM(G). The concept of integer-magic spectrum of ...

The broad purpose of this essay is to suggest an approach to sleight of hand magic, which looks at its social resonances as a dramatic medium. I outline a modern tradition of sleight of hand, that is a form of sleight of hand that was self-consciously described as modern by magicians. This tradition takes shape in the midto latenineteenth century, and its stylistic influence extends well into t...

How rare are magic squares? So far, the exact number of magic squares of order n is only known for n ≤ 5. For larger squares, we need statistical approaches for estimating the number. For this purpose, we formulated the problem as a combinatorial optimization problem and applied the Multicanonical Monte Carlo method (MMC), which has been developed in the field of computational statistical physi...

Introduction There is no known general formula to calculate the total number of magic squares of a given order. However, using various methods, the number of magic squares has been calculated for orders smaller than 6. In this work we describe an approach to bounding the computational complexity of enumerating order-6 squares and provide a related method to approximate the number of such square...