The Hubble Space Telescope has helped revolutionize astronomers understanding of our universe. After a brief history of telescopes, this book uses incredible photographs taken by the Hubble to help explain some of the new discoveries that have been made about our solar system, our galaxy, and our universe. This animated simulation of x-ray imaging shows you how this imaging technique can let you see inside an object like a car engine or a human body. The Shockwave plug-in is required to view this website. CAT Scans See how CAT scans let us peer into the human body without shedding one drop of blood.
Interactive animations help simplify the physics of events beyond our senses.
How Radar Works Radar is part of the electromagnetic spectrum, a fundamental element of the universe we live in. Back to Top Click on any of the vocabulary words below to hear them pronounced and used in a sentence. The range of frequencies of electromagnetic radiation. In theory, the spectrum's range is infinite. The electromagnetic spectrum includes radio waves, infrared radiation, visible light, ultraviolet radiation, x-rays, and gamma radiation.