Electrical safety

VIDEO:  https://www.youtube.com/watch?v=cyXmm-gTvFU

Computer security - malware

Lecture on malware:  https://www.youtube.com/watch?v=wn-uVP8HncA

Computer security tips:  https://www.youtube.com/watch?v=H3XpuDN4Tsc 

Kevin Mitnick

TED with a hacker https://www.youtube.com/watch?v=hqKafI7Amd8

The Moon's far side exploration

https://www.bbc.com/news/av/science-environment-25152163/why-china-is-shooting-for-the-moon

https://www.bbc.com/news/science-environment-46748602