A squash ball is a small hollow sphere filled with air at a specific pressure. As it is hit hard against the walls and the...
A table tennis ball is made mainly of plastic, more specifically of synthetic materials like polypropylene or ABS, which gives it its characteristic lightness. It...
Hairs create small turbulences around the body when swimming, which increases resistance in the water. By removing this fine layer of hair, the skin becomes...
The ancient Greeks used olive oil as a natural protective layer that helped preserve the skin's moisture under the scorching sun. Additionally, it limited minor...
Speed skaters wear very tight suits for a good reason: to glide quickly without being slowed down by air. The more a suit floats or...
To clear a great height, everything revolves around the center of gravity, that famous natural balance of the body. The backflip technique allows the jumper...
A classic golf bag essentially contains three main families of clubs: woods, irons, and the putter. The woods (including the famous driver) are used to...
Javelin throwers use rotation to optimize the energy generated by their bodies. By executing this precise rotational movement, they accumulate a kind of momentum through...
When players hit the ball, they often exhale forcefully to release muscle tension generated by intense effort. This quick exhalation allows for better contraction of...
Elastane has an exceptional elasticity that can stretch several times its original length without deforming. As it is highly stretchable, this fabric naturally follows the...
