![Italian Moto GP rider Valentino Rossi pulls his Yamaha during the second free practice for the Rio Grand Prix at the Nelson Piquet race track in Rio de Janeiro, July 3, 2004. Italian Moto GP rider Valentino Rossi pulls his Yamaha during the second free practice for the Rio Grand Prix at the Nelson Piquet race track in Rio de Janeiro, July 3, 2004.](https://c8.alamy.com/comp/2D3NCAP/italian-moto-gp-rider-valentino-rossi-pulls-his-yamaha-during-the-second-free-practice-for-the-rio-grand-prix-at-the-nelson-piquet-race-track-in-rio-de-janeiro-july-3-2004-the-rio-grand-prix-races-will-take-place-on-july-4-reutersbruno-domingos-reuters-bd-2D3NCAP.jpg)
Italian Moto GP rider Valentino Rossi pulls his Yamaha during the second free practice for the Rio Grand Prix at the Nelson Piquet race track in Rio de Janeiro, July 3, 2004.
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Deepto Chakrabarty named head of the Department of Physics | MIT News | Massachusetts Institute of Technology
![Italian Moto GP rider Valentino Rossi pulls his Yamaha during the second free practice for the Rio Grand Prix at the Nelson Piquet race track in Rio de Janeiro, July 3, 2004. Italian Moto GP rider Valentino Rossi pulls his Yamaha during the second free practice for the Rio Grand Prix at the Nelson Piquet race track in Rio de Janeiro, July 3, 2004.](https://l450v.alamy.com/450v/2d3ea90/italian-moto-gp-rider-valentino-rossi-pulls-his-yamaha-during-the-first-free-practice-for-the-rio-grand-prix-at-the-nelson-piquet-race-track-in-rio-de-janeiro-july-2-2004-the-rio-grand-prix-races-will-take-place-on-july-4-reutersbruno-domingos-bd-2d3ea90.jpg)