Kush was the center of the iron trade in the ancient African world. To produce iron from ore, Kush needed to burn wood. Wood was running out. Kush had to turn their attention to other trade goods to survive. They had heard stories of the wonderful gold mines on the other side of Africa.
When is the earliest you can see a heartbeat on ultrasound? At about six weeks into pregnancy (four weeks from conception), you should be able to see your baby's heartbeat on ultrasound. The typical heart rate at this age is about 100 beats per minute. As your pregnancy progresses, your baby's average heartbeat will be between 120 and 160 beats per minute. Your doctor will not only be looking for a heartbeat, she will also be looking for a gestational sac. She will measure the size of the baby. This will help her to determine your baby's age.
Typically the heart beat can not be heard with even a doppler until the 9-10th week of pregnancy at the very earliest (sometimes not until the 12-14th weeks of pregnancy). A baby's heart beat is very rapid, much faster than an adult. In fact it starts out near 180 beats per minute (BPM) and around 12 weeks gestation settles into the normal range of 120-160 BPM for the remainder of the pregnancy. Even though you can not hear the fetal heartbeat until week 9 or 10, ultrasound is able to see a beating heart much sooner.