Doppler echocardiography. Doppler echocardiography is a procedure that uses ultrasound technology to examine the heart or blood vessels. An echocardiogram uses high frequency sound waves to create an image of the heart while the use of Doppler technology allows determination of the speed and direction of blood flow by utilizing the Doppler effect.
Confidence votes 35. Watermelons are thought to be indigious to Africa where they have been found growing wild. In the 1600s there were watermelon growers in Massachusetts and Florida. Watermelons can be grown almost anywhere but do best in humid areas.I have a freind in Montrael who grows watermelons.He uses black plastic on the ground to amplify the suns heat.n the 1600s there were watermelon growers in Massachusetts and Florida. Watermelons can be grown almost anywhere but do best in humid areas. I have a freind in Montrael who grows watermelons. He uses black plastic on the ground to amplify the suns heat.
1. Choose the variety of watermelon you want to grow. These fruits come in sizes ranging from 3 pounds to over 70 pounds (1.3kg to 32kg), and with either red or yellow flesh. Jubilee, Charleston Grey, and Congo are large, cylindrical varieties, while Sugar Baby and Ice Box are two smaller, globe shaped types.hoose the variety of watermelon you want to grow. These fruits come in sizes ranging from 3 pounds to over 70 pounds (1.3kg to 32kg), and with either red or yellow flesh.