Thank you for visiting nature.com. You are using a browser version with limited support for CSS. To obtain
the best experience, we recommend you use a more up to date browser (or turn off compatibility mode in
Internet Explorer). In the meantime, to ensure continued support, we are displaying the site without styles
and JavaScript.
Britain is rehearsing again the role of black sheep at Europe's next intergovernmental conference, running the risk of alienating potential allies and perpetuating confusion among its voters.
Four years after the first demonstration that beams of atoms can interfere with each other just as if they were beams of light, it has been possible to extract useful information from an experiment. But emulators will be few.
Take this exit on the information superhighway to find software for a digital notary system, automated curve fitting, ELISA data analysis and graphical and statistical analysis.