Divide the class into groups, each of which researches the uses and or dangers of electromagnetic waves from specific parts of the spectrum. This short film will be relevant for teaching physics.

Some of the waves are also hazardous to human body tissues. Lenses and ray diagrams - OCR Gateway What are lenses? In this GCSE physics study guide, you will learn that lenses are precisely shaped ...

NEW YORK (AP) — Scientists have detected cosmic waves that sound like birds chirping ... “That opens up a lot of new ...