Can you tell your right from your left?

This is just a fun little exercise to test if a helical structure is either left- handed or right- handed. 

Step 1. Make fists with both your hands , your thumbs must be outstretched  of course and pointing straight up. 

Step 2. Look at either your left/ right hand and picture a helix spiralling up in the direction of which the other four fingers are curled. 

Now depending on which hand you were looking at you would notice that your right demonstrates a right handed helix and rotates in a counter-clockwise direction, while your left will rotate in a clock-wise direction and demonstrate a left handed helix. 

 

I now wish you all the best with telling your helices apart! Image  

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