For a brand new tennis player, it doesn't really matter too much. Since they're new to the sport, they haven't developed a playstyle yet, and so it's impossible to know their strengths and weaknesses, their likes and dislikes, all of which are vital information in choosing a racket.
That being said, we can make some generalizations. Newer players are ...
I think this has nothing to do with how the skateboards looks, but has merely got to do with the evolution of skateboarding and trends.
Looking at the skateboards in the videos, some boards look quite wide, and I would say it's less common this day to ride on a 11 inches wide board than it was back then (the film is from 1987). However, I think it would ...
The airframe works by creating a cushion of air between the piston head which is powered forward by the main cylinder spring and the cylinder head.
This reduces the impact of the two surfaces hitting each other and producing the distinctive crack of an airsoft gun.
It will also reduce the speed (FPS) of the projectile due to using some of the air inside ...
No, an idle racket will not lose tension as quickly. Any impact sustained by a string-bed will reduce its tension. A more intense impact will reduce the tension more. Thus, the effect in badminton is weaker than in tennis, but still existent.
At first I want to say that any board is good as long as you have fun riding it. I have never skated Penny boards, but I wonder if you wouldn't be interested in trying a board that has grip tape if your present board doesn't have that. You will find a great difference in how you can control the board.
If you think that a new board would help you I would ...
The NSD swim was the product category I was looking for.
It is capable of calculating the force exerted and the distance during a swim.