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.
Yet the debate continues. I don't remember when the law started declaring the differences between fruits and veggies, but the law is the law. You can always continue to call watermelon a fruit in the privacy of your own home (I think). Whatever you want to call them, here's how to grow your watermelons super sweet. The first thing you need to know about watermelons is that if you can possibly swing it, plant them in situ.That is, plant watermelon seeds directly into their permanent bed.