important notes
3. Heat transfer 
	https://www.youtube.com/playlist?list=PLliuty-DnCefS7jsDIbIY3Vo0gMRNHCIS
	
2. Black body radiation
	https://www.youtube.com/watch?v=Mj2QOpQkSfI
	https://www.youtube.com/watch?v=5YSK-gdosYw

1. Standing waves
	https://www.youtube.com/watch?v=PyHc2WPVwbo
	https://www.youtube.com/watch?v=-k2TuJfNQ9s
