Here are some advantages of having a DHCP server connected to network: No IP address conflicts. DHCP can guarantee that all hosts on the network will have unique IP address. DHCP server keeps a record of all IP addresses assigned and cross reference them with host's MAC addresses.
bombardment - the act (or an instance) of subjecting a body or substance to the impact of high-energy particles (as electrons or alpha rays) radiation - the act of spreading outward from a central source.
Particle bombardment is a technique which can be used to introduce foreign DNA to a cell culture. Over the past several years, particle bombardment has progressed into a valuable tool for molecular biologists, permitting direct gene transfer to a broad wide range of cell and tissue types.