Radiation

lightning

https://commons.wikimedia.org/wiki/File:PlanePair2.jpg

https://en.wikipedia.org/wiki/Irradiation

clouds

http://earthobservatory.nasa.gov/Features/Clouds/

http://isccp.giss.nasa.gov/role.html

Anechoic chamber

https://en.wikipedia.org/wiki/Anechoic_chamber

http://www.theverge.com/2013/4/27/4275736/magnetic-field-visualization-carsten-nicolai

https://thecreatorsproject.vice.com/blog/eunoia-seeking-enlightenment-by-tracking-brainwaves