WEBVTT 00:00.000 --> 00:05.500 position:10% line:85% size:80% (MUSIC) 00:05.500 --> 00:06.533 position:10% line:85% size:80% JOAN CARTAN-HANSEN, 00:06.533 --> 00:08.166 position:10% line:85% size:80% HOST: NUCLEAR TECHNOLOGY GETS 00:08.166 --> 00:10.433 position:10% line:85% size:80% USED IN LOTS OF DIFFERENT WAYS. 00:10.433 --> 00:11.900 position:10% line:85% size:80% SMOKE DETECTORS WORK BY USING A 00:11.900 --> 00:13.100 position:10% line:85% size:80% SMALL AMOUNT OF RADIOACTIVE 00:13.100 --> 00:14.900 position:10% line:85% size:80% MATERIAL TO IDENTIFY SMOKE 00:14.900 --> 00:16.500 position:10% line:85% size:80% PARTICLES. 00:16.500 --> 00:18.233 position:10% line:85% size:80% SOME FOODS ARE IRRADIATED TO 00:18.233 --> 00:20.100 position:10% line:85% size:80% KEEP THEM FROM SPOILING. 00:20.100 --> 00:21.533 position:10% line:85% size:80% SOME BUILDERS USE NEUTRON BEAMS 00:21.533 --> 00:24.266 position:10% line:85% size:80% TO LOOK INSIDE METAL STRUCTURES. 00:24.266 --> 00:25.800 position:10% line:85% size:80% DOCTORS USE RADIOACTIVE MATERIAL 00:25.800 --> 00:28.000 position:10% line:85% size:80% TO DIAGNOSE DISEASES AND TO KILL 00:28.000 --> 00:29.800 position:10% line:85% size:80% CANCER CELLS. 00:29.800 --> 00:30.900 position:10% line:85% size:80% GAMMA RADIATION IS USED TO 00:30.900 --> 00:33.066 position:10% line:85% size:80% STERILIZE MEDICAL PRODUCTS THAT 00:33.066 --> 00:34.066 position:10% line:85% size:80% WOULD BE DAMAGED BY HEAT 00:34.066 --> 00:35.800 position:10% line:85% size:80% STERILIZATION. 00:35.800 --> 00:37.000 position:10% line:85% size:80% SCIENTISTS USE NATURALLY 00:37.000 --> 00:38.433 position:10% line:85% size:80% OCCURING RADIOACTIVE MATERIAL TO 00:38.433 --> 00:39.800 position:10% line:85% size:80% CARBON DATE OR TO FIND THE AGE 00:39.800 --> 00:41.967 position:10% line:85% size:80% OF AN ANCIENT DISCOVERIES. 00:41.967 --> 00:43.100 position:10% line:85% size:80% EVEN SPACE CRAFTS USE 00:43.100 --> 00:44.533 position:10% line:85% size:80% RADIOACTIVE MATERIAL IN 00:44.533 --> 00:46.000 position:10% line:85% size:80% SCIENTIFIC DEVICES AND FOR 00:46.000 --> 00:47.867 position:10% line:85% size:80% ELECTRICITY AND HEAT. 00:47.867 --> 00:49.066 position:10% line:85% size:80% FOR MORE INFORMATION ABOUT 00:49.066 --> 00:50.333 position:10% line:85% size:80% NUCLEAR ENERGY, CHECK OUT THE 00:50.333 --> 00:51.500 position:10% line:85% size:80% SCIENCE TREK WEBSITE FOR THIS 00:51.500 --> 00:52.700 position:10% line:85% size:80% AND ALL OUR SCIENCE TOPICS FOR 00:52.700 --> 00:53.633 position:10% line:85% size:80% KIDS. 00:53.633 --> 00:54.633 position:10% line:85% size:80% YOU'LL FIND IT AT 00:54.633 --> 00:57.100 position:10% line:85% size:80% IDAHOPTV.ORG/SCIENCE TREK 00:57.100 --> 01:02.333 position:10% line:85% size:80% (MUSIC)