tom swift among the diamond makers

 for science today qwe are going to talk ablout diffrent ways to find things by using sound or radio waves. like thwire is an ultra sound its safer for women that have babies because they dont have to blast the radiation. at you so its mutch safer and ultrasound is like where they shoot milkions of sound  waves at the person or something like that and it makes 2 d images ona  screen. and new technology makes it so you can see things in three d on the screen iaant that cool radar is a bit more dangerous because you blast with radiation.