In some cases microwaves relieve symptoms better than drugs. The use of microwaves is safer than surgery. For example, the wave can heat enlarged prostates, therefore killing extra tissue. Microwaves can decrease air pollutants, disinfect hospital waste, improve dry cleaning solvents, and clean up contaminated soil. Satellite communications have used microwaves in the past.
Scientists use microwaves to make chalcopyrite, a semi-conductor, made of copper.
Microwaves can also be used to remove materials, and chemicals that can be used for analysis. Any movement in that area disturbs the wave pattern and sets off the alarm. Microwaves are used in cellular phones, telephones, telegraphs, television, and satellites. Microwaves leaking from an oven may pose a hazard to people nearby. They are dangerous for women who are pregnant, because of the unknown defects caused by radiation leakage.