slide fastener is a common name but it's effect to a people that use zipper.
Get a mattress and put a blanket over it. Slide!
Get a mattress and put a blanket over it. Slide!
B.F. Goodrich
You need the bottom of the the slide, the you put a specimen on it. After put a drop of water on it then put the cover and apply pressure.
The zipper uses Newton's first law by remaining in place until a force is applied to open or close it. When pulling the zipper, Newton's second law comes into play as force is applied to overcome the resistance from friction and slide the teeth together. Finally, Newton's third law is demonstrated as the equal and opposite reaction between the teeth as they interlock to fasten the zipper.
To put on pants, hold them with the zipper facing away from you in front of you. Place one leg in the appropriate leg of the pants until it goes out the hole at the bottom. Now, do the same with the other leg. Pull the pants up and zip the zipper and button the button. If pants do not have a zipper and button (example: elasticized waist), make sure the front is facing away from you, put each leg in as described and pull them up.
Use a bar of soap. Rub it on both sides of the zipper, then work the head up and down. You might need to re-soap the zipper once or twice more and work the head up and down a few times to ensure the soap gets into the grooves. Works for me ;-) More information Try rubbing a pencil on it - graphite is a terriffic lubricant.
A pull tab. <--- that is the most common name, however, it is actually called a slide.
I have no clue....?
the purpose of the zipper was to make items like coats and shoes close tighter and better.
petroleum jelly it is great for making the Rubik cube slide better