Hydration is important in sports, and it is the science of performance. When the World Cup is at stake, using technology to track this can make all the difference. Brazil's soccer team is using specially designed Gatorade bottles to track how much players are drinking.

The bottles contain special mixes of the energy drink, which are custom-engineered for each individual player, and they feature sip sensors to record how much they've consumed. The data is wirelessly transmitted to a central database where coaches can keep tabs on how each player is doing.

[Gatorade via Smart Design via PSFK]