Definition
X-radiation refers to the form of electromagnetic radiation known as X-rays. These rays have high energy and can penetrate soft tissues but are absorbed by denser materials like bone and metal. They are used in medical imaging and security scanning. Think of it as a form of light that your eyes can't see, but machines can detect. It is useful for peering through some objects. High doses can be dangerous, so precautions are important. It's a powerful force that must be handled with care.