. Ski-running . they shall or shall not be provided with a grooveunderneath them running from end to end. We approach thesequestions -with a certain degree of diffidence, for, in the firstplace, investigations with a view to their answer have not been,and perhaps cannot be, carried out with much scientific pre-cision, and, in the second place, they will always remain verylargely matters of personal taste. Smooth-bottomed and Broad versus Grooved and Long. Evidently to some extent the length and breadth of a skimust be proportionate to the weight of the runner, a certaindegree of carrying surfa
. Ski-running . they shall or shall not be provided with a grooveunderneath them running from end to end. We approach thesequestions -with a certain degree of diffidence, for, in the firstplace, investigations with a view to their answer have not been,and perhaps cannot be, carried out with much scientific pre-cision, and, in the second place, they will always remain verylargely matters of personal taste. Smooth-bottomed and Broad versus Grooved and Long. Evidently to some extent the length and breadth of a skimust be proportionate to the weight of the runner, a certaindegree of carrying surface being necessary to obviate , apart from all questions of support, length is of greatimportance. In this respect ski resemble ships, for, generallyspeaking, the longer they are the faster they go. Area for arealong ski are faster than broad. On the other hand, the shortera ski is the more readily it will turn, and it is, of course, veryimportant to be able to steer easily. There comes a point, how-. The Elements of Sl-i-Bunning. 33 ever, when ease of turning develops into wobbling, and seriouslyinterferes with ones balance when running straight. Nor isthe unsteadiness of short and broad ski confined to what may beconsidered as horizontal wobbling, due to inequalities of theground, but broad ski are also more subject to what may beregarded as vertical wobbling, due to unequal snow in the case of the long ski variations in the carrying powerof the snow and consequent errors of balance occur in abackward and forward direction, but in the case of a broad skiin a sideward direction, which latter is, of course, moreupsetting. Again, almost all ski are nowadays provided with a groovealong the bottom, beginning at a point a little distance belowthe bend and continuing to the heel. The object of this is toprevent horizontal wobbling and to assist straight working is most powerful. Clearly, then, some sort of com-promise must be arrived at between
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