Sentences with phrase «electromagnetic signals emitted»

Their reasons for objecting to the technology range from health concerns about the radiation and electromagnetic signals emitted from the devices, which they fear could cause cancer, migraines or other illnesses, to security and privacy fears.

After detecting the initial flash, Swift focused on the burst's faint X-ray afterglow, a dim electromagnetic signal emitted when high - energy particles from the blast heat the surrounding material.

Not exact matches

Using what's called dielectric properties — chemical changes that occur as a fruit ripens or rots, for example — the sensors emit an electromagnetic signal that can be monitored by a reader.

When a transmitter drives an oscillating current in an antenna electromagnetic radiation — which carries both power and signals away from the source — is emitted.

This is one of system's big advantages over currently available devices, where «send» mode involves emitting only an electromagnetic signal.

To minimize possible effects from exposure to electromagnetic waves, the units are set to emit signals that are only a hundredth of what an average cellphone emits.

Two neutron stars merging together generate a gravitational wave signal and have also been predicted to emit electromagnetic radiation.

Although she is only a high school student, she is searching for the signal of a pulsar — a rapidly rotating neutron star that emits a beam of electromagnetic radiation like a lighthouse.

But they had never developed metallurgy, or the use of electromagnetic radiation, so their civilization was «silent» since it emitted no signals into space.