http://www.livescience.com/40102-accelerometers.html
http://blogs.discovermagazine.com/inkfish/2014/12/16/spying-on-animals-movements-to-learn-how-theyre-feeling/#.VJikZqAA8
https://www.youtube.com/watch?v=KZVgKu6v808
http://www.explainthatstuff.com/accelerometers.html
http://www.marinemammal.org/2010/06/steller-sea-lion-go-go-gadget-accelerometer/
http://blogs.discovermagazine.com/inkfish/2014/12/16/spying-on-animals-movements-to-learn-how-theyre-feeling/#.VJikZqAA8
https://www.youtube.com/watch?v=KZVgKu6v808
http://www.explainthatstuff.com/accelerometers.html
http://www.marinemammal.org/2010/06/steller-sea-lion-go-go-gadget-accelerometer/