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        Q: How do you say how are you doing in sign language?
A: . The words 'for ' has are a few of definitions of terms in the English language . The sign for 'for ' when it utilized , like in the next one sentencing : 'This gift is 'for ' you . ' ; signed off by using the dominate hand 's indexing finger lengthened with the tip of that finger touching the forhead and sweeping away such that the indexing finger at the end of the movement points to the person that the gift is 'for ' if these people are in the region . If the definitions contained in 'for ' means one of the reasons as in the sentencing : 'I did this 'for ' love . ' ; subsequently the indexing finger on the dominant sign hand starts with the tip touching the forehead and sweeps into a amend A hand at the side of the head . This gesture 's also utilized for the word 'because ' and 'since ' when the definition means one of the reasons . 

Q: How do you sign sign language?
A: Sign language exist because it fulfills a need : communications . A way be transmitted are necessaryed for some individuals who : . ca n't hear very much . ca n't talk at all : in fact , sign language 's used before verbal communication developed in early humans ! . 

Q: Powering a Light/Exit sign with only batteries?
A: A characteristic LED exiting sign will run on a battery .  For around ninety minutes .  However , if it 's powered by a bit ( 8-10 Watt ) transformer , which are simple to wire in and does n't requires ann electrician , it will run for years .  There 's also `` glow-in-the-dark '' exiting signs , they 'll going on for hours after a day of sunlight .  Have Fun .