What is the difference between an (open interval) and a [closed interval]?

I've seen a lot of headphones that are open or closed, but I never really knew what the difference is. And which one should I get if I dont want to bother other people around me with my music? When we finish a test at school we are allowed to listen...

I know the difference, but could someone please elaborate for me? What are some of the pros and cons of each one? How does open campuses give students more freedom than closed campuses? Why are OC more dangerous than CC? And how does this affect student...

I am about to buy a sheet for my horse, but I don't know the difference between an open front and a closed front. Any help??

I understand the fundamentals of it based off of thermodynamics classes but am new to building systems and want to know exactly what an open loop system is and what a closed loop system is in a large office building or other similar buildings. Thanks

In terms of technology .. this is parrt of my grpHICS coursewokrrk.. what is it.. like light switch open and closed loop pls help!

Open deck.I've heard that these are 1.8 and 2.2 Closed deck. Heard it's for the 2.5 But what do they mean?

And what are the advantages/disadvantages to each? I have used a closed-reel for some time now, and they seem more prone to get knotted and twisted inside. Yet I know that ...show more

if the grandparents adopt their grandchild and the parents insist in staying in the child's life what is the difference? (no there is no drugs involved btw....the child was taken ...show more