2Scroll Compressor History and Development 2OPERATING PRINCIPLES................................ 3Geometry of a Scroll....................................... 3The Scroll Set ................................................. 3Compression Process ...................................... 4Compliance .....................................................
A: Your baby's heartbeat is one of the first things your doctor will look for on an ultrasound, a test that uses sound waves to give off visual images of your baby and placenta as well as your uterus and other pelvic organs.
Another possible way you can tell the sex of the baby is by the heartbeat as well. Many people have said the next time you are going for an OBGYN checkup then you should ask how fast the babies heartbeat is. A heartbeat of 140 beats or higher more than likely indicates a baby girl, where lower indicates a baby boy.