I watched a fascinating article about skiing.
It showed how Olympians prepare their skis. Before each race they:
1. Strip the bottom of each ski to remove damage.
2. Etch on a special grooved pattern to allow water to dissipate.
3. Wax the ski, the type of wax is dependent upon the snow conditions.
4. Strip off any excess wax.
This improved the skiers performance by 2 seconds (about 10%).
All because a man in a shed on the side of a French mountain applied a bit of method, some savoir faire.
Which leads to a handful of questions:
Image by Anders Ljungberg