Standing at the intersection between mathematics and the tiler's trade is the so-called einstein problem. Despite its name, ...

Yet only “Gray Tree” has scale-invariant branch diameters. When Mondrian removes the scale invariance in “Blooming Apple Tree ...

A team of German researchers has developed a miniaturized solar cell experiment for nanosatellites. It was used to test ...

An additional airbag could soon be added. And one for the feet. ZF Lifetec has developed the Active Heel Airbag. The knee ...