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.
Grow a summer feast! A single homegrown watermelon makes a refreshing hot-weather dessert or special snack for a crowd. And there's a vast array of different types of watermelon out there to grow, too. They may be round icebox types or oval picnic types. The flesh may be red, yellow, orange or pink, and the size ranges from a few pounds to nearly 200 pounds. Watermelons require heat to germinate and grow well.