Strain gauge load cells work on the principle that the strain gauge (a planar resistor) deforms/stretches/contracts when the material of the load cells deforms appropriately. These values are extremely small and are relational to the stress and/or strain that the material load cell is undergoing at the time.
The Broadband Global Area Network (BGAN) is a global satellite internet network with telephony using portable terminals. The terminals are normally used to connect a laptop computer to broadband Internet in remote locations, although as long as line-of-sight to the satellite exists, the terminal can be used anywhere.
Many wireless routers display a reference to LAN and/or WAN. These refer to a local area network and a wide area network respectively, with the latter usually being a synonym for the Internet itself. These terms should not be confused with WLAN, which is a wireless local area network. A local area network is one where all the computers are in the same general location. This can mean all in the same office or building, or in a group of nearby buildings. The key is that these computers are usually connected by a single cable, a small collection of cables or a local Wi-Fi connection.