Post 44. Really by *far* most of the energy in a hydrogen bomb is derived from fission. Fusion only contributes a small amount. Think of a hydrogen bomb as a boosted fission bomb, since most of the energy in a Deuterium-Tritium fusion is delivered in the form of a fast neutron.
During an EEG test, electrodes (flat metal discs) are placed on your head. The electrodes pick up the electrical signals from your brain and record them on an EEG machine. The electrodes only pick up the electrical signals. They do not affect your brain and they do not cause you any pain. The EEG machine records the electrical signals from your brain on a computer. They look like wavy lines and these represent your brainwave patterns. The EEG test can only show your brainwave patterns at the time the test is carried out.
The EEG may also be used to determine the overall electrical activity of the brain (for example, to evaluate trauma, drug intoxication, or extent of brain damage in comatose patients). The EEG may also be used to monitor blood flow in the brain during surgical procedures.