In a third-class lever, the input force is applied between the fulcrum and the load, and both move in the same direction. The amount of applied force is always greater than the output force of the load, but the load is moved a greater distance than that over which the input force is applied.
Broadcasts are generally used for several reasons: Address Resolution Protocol (ARP) uses broadcasts to map physical addresses to logical addresses. To build the table of hosts, a device needs to send a broadcast to every other device on the network to essentially find out who is where.
how datacasting works. (1) Dispatch selects video, voice or data (e.g., floor plans, maps, photos, POC lists, helicopter video, etc.). (2) Selected data is pushed to the TV station over a secure network. (3) TV station immediately sends to transmitter for delivery to targeted receivers in the field.