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.
Guide. An electroencephalogram (EEG) is a test that measures and records the electrical activity of your brain. Special sensors (electrodes) are attached to your head and hooked by wires to a computer.n electroencephalogram (EEG) may be done to: 1  Diagnose epilepsy and see what type of seizures are occurring. 2  Check for problems with loss of consciousness or dementia. 3  Help find out a person's chance of recovery after a change in consciousness. 4  Find out if a person who is in a coma is brain-dead. 5  Study sleep disorders, such as narcolepsy. 6  Watch ...