Thinking outside the box 261 The size of the boxes used depends neither on the mass of the motorcyclist and jumper nor the height of the jump. To accommodate a higher jump, just use more layers of boxes. The calculations are based on simulating the landing of a 0.25-m jump. To simulate a lower jump, we would use slightly taller boxes An advantage to our model is the small size of the cardboard stack-less than 3 m-and specifically its short height. It should be easy to hide such a structure from the camera References BankersBox.2003.BankersBoxfrequentlyaskedquestionswww.bankersbox com/service/index. cfm Baum, G.A., D.C. Brennan, and C.C. Habeger. 1981. Orthotropic elastic con- stants of paper. Tappi Journal 64(2): 97-101 BoxlandOnline1999.Flutes.www.boxland.com/flutes.html Clarke, J W, and J.A. Marcondes What pallet manufacturers should know about corrugated boxes rept. 2. Blacksburg, VA: Center for UnitLoadDesignVirginiaPolytechnicInstitute.www.unitload.vt.edu/ technote/980918/980918htm lean Sweep Supply, Inc. 2002. Recycled Liberty Plus storage boxes http://www.cleansweepsupply.com/pages/skugroup13316.html Gilchrist, A C, J.C. Suhling, J C, and T J. Urbanik. 1999. Nonlinear finite- element modeling of corrugated board. Mechanics of Cellulose Materials 85 101-106 Just'inDesigns.2001.frEegoldwigclipartwww.just-in.net/clipart/dirt/ index. htm Kawasaki, Inc. 2002. Kawasaki motorcross off-road series www.fremOntmotorsports.com/html/kawasaKi/kAwaSaki-mx-1.hTm Korchak, R. 2002. Motorcycle tire sizes www.webbikeworld.com/motorcycle-tires/sizes.htm MallCityContainers.n.d.Packagingbasicswww.mallcitycontainers.com/ Packaging.htm Pflug, J, I. Verpoest, and D Vandepitte. 2000. Folded honeycomb cardboard and core material for structural applications. In Proceedings of the 5th International Conference on Sandwich Construction, 361-372 Theroux,S.2002.AnimalrecordsSize.www.swishweb.com/animal_kinGdom/ animal06.htmThinking Outside the Box 261 The size of the boxes used depends neither on the mass of the motorcyclist and jumper nor the height of the jump. To accommodate a higher jump, just use more layers of boxes. The calculations are based on simulating the landing of a 0.25-m jump. To simulate a lower jump, we would use slightly taller boxes. An advantage to our model is the small size of the cardboard stack—less than 3 m3—and specifically its short height. It should be easy to hide such a structure from the camera. References Bankers Box. 2003. Bankers Box frequently asked questions. www.bankersbox. com/service/index.cfm . Baum, G.A., D.C. Brennan, and C.C. Habeger. 1981. Orthotropic elastic con￾stants of paper. Tappi Journal 64 (2): 97–101. Boxland Online. 1999. Flutes. www.boxland.com/flutes.html . Clarke, J.W., and J.A. Marcondes. 1998. What pallet manufacturers should know about corrugated boxes. Tech. rept. 2. Blacksburg, VA: Center for Unit Load Design, Virginia Polytechnic Institute. www.unitload.vt.edu/ technote/980918/980918.htm . Clean Sweep Supply, Inc. 2002. Recycled Liberty Plus storage boxes. http://www.cleansweepsupply.com/pages/skugroup13316.html . Gilchrist, A.C., J.C. Suhling, J. C., and T.J. Urbanik. 1999. Nonlinear finite￾element modeling of corrugated board. Mechanics of Cellulose Materials 85: 101–106. Just’In Designs. 2001. Free goldwig clipart. www.just-in.net/clipart/dirt/ index.htm . Kawasaki,Inc. 2002. Kawasaki motorcross off-road series. www.fremontmotorsports.com/HTML/Kawasaki/kawasaki-MX-1.htm . Korchak, R. 2002. Motorcycle tire sizes. www.webbikeworld.com/Motorcycle-tires/sizes.htm . Mall City Containers. n.d. Packaging basics. www.mallcitycontainers.com/ Packaging.htm . Pflug, J., I. Verpoest, and D. Vandepitte. 2000. Folded honeycomb cardboard and core material for structural applications. In Proceedings of the 5th International Conference on Sandwich Construction, 361–372. Theroux, S. 2002. Animal records: Size. www.swishweb.com/Animal_Kingdom/ animal06.htm