. >> reporter: with its dex tured finish, the bra zuk ka is the 12th adidas ball used in world cup historythat ball was panned by players for unpredictable movement. >> it was really a nightmare. the goalies on the team were saying, look, this ball is moving all over the place, and if the ball is not rolling true or flying true, it makes the game even more difficult. >> reporter: players have raved about the ball's advances. for most, it's the accuracy and speed that matter the most. in a game, it can top 60 miles an hour. with its very only brazuka cam and nearly go million followers on twitter, this tweet sums up the frenzy. you guys realize you're following a ball, right? on the field where stars shine bright, the brazuka is always in the spotlight. miguel almaguer, san jose, california. >>> and a note about iran's losses to argentina, unfazed by that lost, iran's president tweeted, quote, well played to our persian cheetahs. it may not be the result you deserved but great effort and heads held high. >>> up next, the homework diner and its remarkable impact on students' success. she kee