Now comes word of another moonshot project from the company's Google X division: an ingestible disease - detecting pill containing thousands of
microscopic magnetic particles that course through a person's bloodstream in search of malignant cells, according to the Associated Press.
Not exact matches
In a series of papers, Firestone and his colleagues claimed various kinds of evidence for the hypothesis, including deposits of the element iridium (rare on Earth but abundant in meteorites),
microscopic diamonds (called nanodiamonds), and
magnetic particles in deposits at sites supposedly dated to about 12,800 years ago.
Because neutrons are
microscopic magnets that carry no charge, they can be used to interact with and excite other
magnetic particles in the system without compromising the integrity of the material's atomic structure.
The magnetite
particles are thought to act like
microscopic compass needles, relaying information to the nervous system by straining or twisting receptors in cells as they attempt to align with the Earth's
magnetic field.