The reasons for the results of Test 2 and Test 3 are afterimages. Bright light creates an afterimage in the eye. The same way you see light in your eye seconds AFTER the doctor shined a light into it. This afterlight makes it possible to see what was there seconds ago. The brightness of the afterimage of the cinema canvas produces such afterimages and thus helps the movie to be flickerfree.
You can download Proofing Tool packs for additional languages. Each pack will include a spell checker and, depending on the language, additional proofing tools such as a grammar checker, thesaurus, or hyphenation. Note that this is not a full language pack.
large flash cards. Tools for Educators is a website developed by MES with worksheet generators to make vocabulary and language building teaching materials, using the images from these flashcards. There are simple spelling, matching, reading and writing worksheet makers as well as communicative games, vocabulary handouts and fun activities to print.