FoxLingo is a Firefox extension which acts as a versatile language tool. It can perform Web page translation, translated searching, and translation of entered text. Over 1,000 different language pairs are supported. It provides access to over 90 language services such as encyclopedias and text-to-speech. It also offers Ixquick, a meta-search engine with unique features.
SolarCalc is a program for estimating the solar radiation and electrical energy yield in a given site around the world. The software has been written in Qt and uses the most recent models of solar radiation conversion by PV effects. The software can take into account many aspects of solar systems such as detailed diffuse/beam correlation models, temperature effects, and shadowing effects. The system allows you to build a user-based archive of components, like solar panels and inverters. Many printing and exporting functions are available, as well as ready-to-use PDF report export.