Kyla Brooks P4
Velocity in a Vacuum
X-rays were first observed and documented in 1895 by Wilhelm Conrad Roentgen, a German scientist who found them quite by accident when experimenting with vacuum tubes.
Because your bones and teeth are dense and absorb more X-rays then your skin does, silhouettes of your bones or teeth are left on the X-ray film while your skin appears transparent.
Summary of the Article
How does X-rays affect the world positively?
- Due to their ability to penetrate certain materials, X-rays are used for a number of nondestructive evaluation and testing.
- X-rays are also essential for transportation security inspections of cargo, luggage and passengers.
How does X-rays affect the world negatively?
- The problem is that X-rays are a form of ionizing radiation. When normal light hits an atom, it can't change the atom in any significant way. But when an X-ray hits an atom, it can knock electrons off the atom to create an ion, an electrically-charged atom. Free electrons then collide with other atoms to create more ions.
- The charge can break DNA chains. A cell with a broken strand of DNA will either die or the DNA will develop a mutation.