Riz speaks with scientist Michio Kaku author of
Physics of the Impossible  [AFP]
Time travel, death stars and invisibility cloaks - writer and noted scientist, Michio Kaku, believes they could all be possible in the not to distant future. 

To the skeptics he points out that aeroplanes, lasers, televisions and atomic bombs were all considered impossible by scientists in the past. 

On Wednesday's Riz Khan we speak with noted scientist Michio Kaku author of Physics of the Impossible

The book explores the technologies and devices of science fiction that are deemed impossible today but that might become commonplace in the future.

This episode of Riz Khan airs on Thursday, May 28, 2008

You can watch Riz live at 1900GMT, with repeats at 0030GMT, 0500GMT and 1000GMT

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