Many of the necessary tools, you probably already have in your tool chest. You may be working on a new roof, but it is more likely that you will be shingling a roof that already has a layer or two of shingles. If there is more than one layer you will need to remove the old shingles.
Electroencephalography definition, an instrument for measuring and recording the electric activity of the brain. See more.
The Electroencephalogram [EEG] is a recording of the on-going electrical activity of the brain. An EEG is used to assist in the diagnosis of epilepsy and a variety of neurological symptoms. EEGs also are used to evaluate the effects of head trauma or the consequences of severe infectious disease.