Beowulf battles Grendel's mother in a battle hall under a lake. He first swims through this lake in order to arrive to this icy battle hall. There is ice everywhere, and it is very cold. This is the poem's representation of hell - in some mythologies, hell is represented as a freezing place, as opposed to fiery doom.
Your answer is..........read correctly, Bluetooth and infrared wireless technologies are commonly used for short-range wireless communication between electronic devices. Both technologies are effective, but because of their very different capabilities and limitations, they are best suited to very different applications. In most respects, Bluetooth holds a distinct advantage, although infrared continues to be popular in some applications.
