Electromagnetic Spectrum

2. the process of applying, labeling, or embedding identifying markers, tags, or classification levels onto physical assets, documents, or digital data to prevent theft
4. the effect of excessive exposure of x-rays and gamma rays
7. the wave used for security marking, detecting forged bank notes
10. the wave used for security imaging, medical imaging
12. the process of converting infrared radiation (heat) into visible images
14. this technology use microwave radiation to transmit voice and data to cell towers
15. the changing of the structure of a gene caused by gamma rays
16. the wave used for television broadcasting, mobile phone
18. the wave used for remote controller, intruder alarm, optical fibres, thermal imaging
20. the wave used for photography, visual, communication signal

1. human-made machines launched into space to orbit the Earth or other celestial bodies
3. a security system designed to detect unauthorized entry into a building or area using sensors
5. it transmits signals to a receiver, which then executes the command
6. the harmful effect of infrared
8. the wave used for detection of cancer, sterilising medical equipment
9. technology used to detect concealed, dangerous, or unauthorized items in baggage, cargo, and on persons, enhancing safety in airports and secure facilities
11. harmful effect of ultraviolet to human eyes
13. a short-range, wireless, and low-power technology standard to exchange data between fixed and mobile devices
17. the property that is the same for all waves
19. the wave used for radio and television transmission, bluetooth technology