This can detect tiny changes in electrical fields from a distance, even through textiles.

ECONOMIST: A big name from the past hopes for a bright future

When using the NovoTTF-100A System, a health care professional places electrodes on the surface of the patient's scalp to deliver low-intensity, changing electrical fields called "tumor treatment fields" (TTFs) to the tumor site.

ENGADGET: Portable brain tumor treatment system kills cancer while you take out the trash

Since then several teams have been trying to make colder antihydrogen and to hold on to it using clever configurations of electrical and magnetic fields.

ECONOMIST: Antihydrogen atoms are captured for the first time

Since nerve cells use electrical signals, and magnetic fields can induce and disrupt such signals, a strong, well-aimed magnetic stimulation can affect the brain's operation.

ECONOMIST: The ethics of brain science

However, in key fields, such as electrical engineering, foreign nationals earn nearly 66 percent of the Ph.

FORBES: Moneyball, Immigration, and the Search for Hidden Advantage