The twin tip ski is used in trick skiing, where upon the user can take a jump and land backwards, skiing for long periods of time backwards. The single tip skis do not facilitate backwards skiing.
you can go backwards
Twin tip skis are for the experienced skier. they tend to be much easier to use. also they help you control your movements better while on the water. Skis are meant for fun.
Armada and Line are two pretty good skis. If your looking for a park ski then Line,for an all mountain twin tip ski that are still reliable in the park then Armada.
There are several great options for you. Line makes a twin tip called the Mastermind, K2 has the new Press. Salmon make two twin tip skis the more freestyle oriented Threat and the all-mountain version the Knight. Volkl has a really great new ski called the Alley. These are all really nice, light weight twin tip skis that are all sub $350. Check out the link below to skis.com as they are offering free shipping on all 2011 twin tip skis right now.
It depends on what you want to be doing...Just any good twin-tip could come from Armada, Atomic, or any good park ski manufacture. You can demo different skis...or rent them. It is what you can find and is a good size for you and also what you want the ski to do. Hope this helped.
with twin tips = 180 with regular skis = lui kang or safety
They were invented in 1922.
No you don't. However - when you make the turn make sure that your weight is balanced on the front of the skis, so that the back end of the skis do not dig into the ground. This is only effective if you are on hard packed snow, and might not work if it is soft and powdery snow.
They help you take off and land backwards. So helps you do it . http://en.wikipedia.org/wiki/Twin-tip_ski . They ae pretty expensive and jumping backwards takes skills .
The were not invented in America, the were invented in Scandinavia.
The first modern Twin-Tip was the Salomon 1080 (1998)The first mass produced Twin-Tip was the Olin Mark IV Comp (1974)Sometime prior to their appearance in the 1931 Arnold Fanck film Der weisse Rausch (