Efteling, a fantasy theme park based in The Netherlands, has reopened its iconic Python coaster, following a €4.5m (£3.9m, US $5.6m) refurbishment. The Python, which first opened in 1981, is a ...

The track layout problem is a challenge in graph theory and computational geometry. It involves arranging the vertices and edges of a graph in a linear order while minimizing the crossings and ...