Education Water managemnt

1. Water management By: Group iii 2. why water management?♣Although more than 70% of the earth surface is covered in water less than 0.5%fills the earth’s rivers and…

Documents 3/13/2009IB Physics HL 21 Ultrasound Medical Imaging Physics – IB Objectives I.2.7Describe the...

Slide 1 3/13/2009IB Physics HL 21 Ultrasound Medical Imaging Physics – IB Objectives I.2.7Describe the principles of the generation and the detection of ultrasound using…