After it was destroyed during the Hundred Years' War, King Louis XI (1461â1483) rebuilt Chateau chÃ¢teau De langeais into what today is one of the best known examples of late medieval. Architecture it is especially noted for its monumental and highly decorated. chimneypiecesestored in the late 19th century, Chateau chÃ¢teau De langeais came under the control of The institut De, france who own the site. today
The phase shift effect is similar to the Doppler shift observed with sound waves. With the Doppler shift, the sound pitch of an object moving toward your location is higher due to compression of sound waves. As an object moves away from your location, sound waves are stretched resulting in a lower frequency.
1 She'll cover it with ultrasound gel and move it around on your belly until she finds a spot where the heartbeat can be detected. 2  The Doppler sends and receives sound waves that bounce off your baby's heart. 3  In this way the fetal Doppler makes your baby's heartbeats loud enough for you to hear. Hearing it for the first time can be very moving. 2  The heart rate of a healthy baby in the womb ranges from about 120 to 160 beats per minute. 3  A heartbeat that's much faster or slower than that may signal a heart problem.