Technology and Operations Management. The scope of Technology and operation management has evolved over a period of time and has moved from development of products into design, management and improvement of operating system and processes.
Hydrogen bonding forms in liquid water as the hydrogen atoms of one water molecule are attracted towards the oxygen atom of a neighboring water molecule; generally, a proton shared by two lone electron pairs.
Cohesion and surface tension keep the hydrogen bonds of water molecules intact and support the item floating on the top. It's even possible to float a needle on top of a glass of water if it is placed gently without breaking the surface tension .