The larger the surface area the more pressure can be spread out, therefore it is less likely to fall through the snow. As pressure = f / a.
if by regular skis you mean downhill skis, then longjump skis are similar, but they are nearly twice as long and twice as wide-- the greater surface area makes the ski jumper accelerate faster, thereby allowing him to travel farther off of the jump
To distribute the mass of the skier and thus reduce frictional drag.
Weight is distributed over a larger area, so the skis tend not to sink into the snow as much as wheels would. If and when the skis do 'sink' (into powder, for example) their design makes it easier to guide them toward the surface of the snow. Also, the longer the skis, the faster you can travel on them.
They use this position because it creates the most surface area, their skis plus almost their entire body, so they get better lift which is exactly what they want.
i just waxed my skis with a candle that i melted with an iron onto the skis scraped and smoothened the surface..tested the skis on slopes.seems like my skis made a squeeking sound on the snow..but all in all it worked well
snowboards, this is because the surface area of the side-ways snowboarder is smaller, so it catches less air molecules.
We do not sink because the skis have a high surface area compared to our feet, therefore we would float on fresh snow.
You should get new skis when your side wall is shot... When your base is torn up beyond repair... If your skis in in two pieces... If your technology is outdated.
No, an airport is not necessary. The ice provides a solid-enough surface for airplanes to land, especially those quipped with skis.
That depends a bit. Normal classic skis should be about 6'9. If you go skating they should be 6'5.