#5 Charging mobile while talking

Gautam Kumar

Class 7, Rajkiya Madhya Vidyalaya, Patna, Bihar

Gautam living in an area with frequent power cuts wondered why our voice, a sound energy, cannot be used to charge the mobile.

He feels, "In most villages, we have problems of power shortage. So it can be useful there."

#4 Machine to suggest what to eat and How to Cook It

Sharvay Harish Tiwari

Class 5, Shri Shri Ravishankar School, Pune, Maharashtra

Standing indecisive in the kitchen? Sharvay's idea does away with these problems. In his machine, you simply select a particular vegetable, and the monitor displays a list of different ways it can be cooked along with the ingredients required and their quantity.

Asked on how he came up with such an idea, he simply replies, "Because I love food."

#3 Device to relocate clouds

Shweta Sharma

Class 10, Police DAV School, Jalandhar, Punjab

The Poor rainfall in Punjab gave Shweta the first-hand experience of the problems caused by water shortage. And she came across news of floods in Assam. The two situations got amalgamated and an idea struck her, that if the clouds over Assam could somehow be sent to Punjab, it would be a 'win-win situation' for both states.

She was first hesitant to share this idea as she thought that it might be laughed upon. But her mother’s story of the great musician Tansen whose raag Megh Malhar was said to have the power to bring down rain encouraged her to send her idea reasoning that "if a sweet melodious voice can bring rain, then this is also possible, maybe not today, but tomorrow."