X-rays are produced by the collision of a beam of electrons with a metal target in an x-ray tube. Called also roentgen rays. The penetrability and hardness of the x-rays increases with the voltage applied to the x-ray tube, which controls the speed with which the electrons strike the target.
Usually, when older people refer to hooking up, theyâre talking about sex, but thatâs not always true. It could also mean oral sex, kissing and feeling each other up, or just plain olâ making out. You should just decide what you want hooking up to mean to you.The next time you tell your friends what you did with a guy, go into specifics (as long as you feel comfortable), and they wonât think you did anything more than you did.sually, when older people refer to hooking up, theyâre talking about sex, but thatâs not always true. It could also mean oral sex, kissing and feeling each other up, or just plain olâ making out. You should just decide what you want hooking up to mean to you.
mess something up. 1. to do something badly or make mistakes I really messed up my chemistry exam. We had a chance to win the game, but we messed it up. Usage notes: sometimes used in the form mess up on something: I messed up on my driving test.