When you do this you cover a lot more horizontal distance in less space — which is exactly what you need in a tiny house. (tinyhousedesign.com)
Parts of a Wave Crest — highest point of a wave Trough — lowest point of a wave Wave Height — vertical distance between the crest and the trough Wavelength — horizontal distance between two crests or two troughs (slideplayer.com)
Rear crash protection is rated according to head restraint height and horizontal distance behind the head of an average - size man plus performance in a dynamic test that measures forces on the neck during a rear impact. (iihs.org)