plus remember this list
RADIO
MICRO
INFRA-RED
VISIBLE
ULTRA-VIOLET
X-RAY
GAMMA
as you go down the list -
their wavelength decreases, their frequency increases and their danger increases
questions that you should be able to answer :
how do you get a picture of bones using x-rays? (shadows, absorb, transmit)
what are x-rays used for? (diagnosis, treatment)
how do medics keep themselves safe? (screen, lead, leaving the room)
and - here is an X-ray photo of my head - July 20th 1969
No comments:
Post a Comment