Where would we be without the world's graduate art projects? In the case of Markus Kayser's Solar Sinter, we might never have seen the day when a solar-powered 3D printer would turn Saharan sand into a perfectly suitable glass bowl. Well, lucky for us (we suppose) we live in a world overflowing with MA students, and awash in their often confusing, sometimes inspiring projects. Solar Sinter, now on display at the Royal College of Art,
