Good app for general knowledge

This is a good app for general knowledge, or for finding definitions and information on basic scientific facts. But there are many areas that it is lacking. Another reviewer noted and I concur that it is reprehensible that Nicola Tesla is not highlighted in here. There is a section on Florence Nightingale, and not Tesla? I mean, come on!

DrVRob about Science Glossary, v1.1.5