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.
You can download these proofing tool packages in 32-bit or 64-bit versions from Office Proofing Tools. If you are a volume license customer, you can download the Office 2013 Proofing Tools Kit from the Microsoft Volume Licensing Service Center. The Office 2013 Proofing Tools Kit contains the proofing tools for all languages that are available with Office 2013. The following proofing languages are available: