waveguide

"The patient followed the doctor's instructions carefully. "

"The grasshopper used its long antenna to sense the movement of the nearby bird. "

"The guide led us around the museum and explained the exhibits."

"The birds had built an amazing structure out of sticks and various discarded items."

"The students designed posters for the school fair. "

"The blinking lights on the modem sent signals indicating that the internet connection was working. "

"By now, you must surely know which is which."

"The microwave oven uses electromagnetic microwaves to heat food quickly. "

"My science textbook explains that microwaves are a type of energy, like radio waves but with a shorter wavelength. "

"The cell phone emits electromagnetic waves that allow us to communicate. "

"The student was the receiver of the first-place award for her science project. "

"My grandmother was admitted to the hospital last week after falling. "