Acceleration

https://www.hq.nasa.gov/office/pao/History/afspbio/part4-1.htm

http://www.americanjournalofsurgery.com/article/0002-9610%2857%2990540-8/pdf http://dx.doi.org/10.1016/0002-9610(57)90540-8

http://iopscience.iop.org/article/10.1088/0143-0807/37/6/065008/meta

in ~/launchloop/acceleration