X-ray machines are medical devices that use a form of radiation to create images of the inside of the body. They work by sending X-rays through the body, which are absorbed in different amounts by various tissues. Dense materials like bones absorb more X-rays, appearing white on the image, while softer tissues allow more X-rays to pass through, appearing darker. This helps doctors diagnose conditions such as fractures, infections, and tumors. The technology behind X-ray machines was first developed in the late 19th century by Wilhelm Conrad Röntgen, who discovered X-rays. Today, X-ray machines are commonly used in hospitals and clinics, and they play a crucial role in medical imaging, helping healthcare professionals make informed decisions about patient care.