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.
The Polyken probe tack tester is a portable device for measuring the tackiness of pressure-sensitive adhesives and cements. The tester provides a means of bringing the tip of a probe into contact with the adhesive at controlled rates, contact times, and temperatures, and subsequently breaking the adhesive bond thus formed, also at controlled rates. The maximum force during the break is taken as the measure of tackiness.