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This week's questions

Why are the spokes in motorcycle wheels not arranged perpendicular to the rim but at an angle?

Ashish Sundar, Cochin, Kerala

How are sparks generated from a lighter which is used to light a gas stove?

K. Sreenath Suman Kumar, Kurnool, Andhra Pradesh

Why are the wheels of a train edged out from the inner side and not from outside?

P.S. Dheenadayalan, Bangalore

Readers can send questions/answers on science and technology for the Question Corner

along with their names and address to the following email id:

questioncorner@thehindu.co.in or to The Editor, The Hindu (Science and Technology),

859-860, Anna Salai, Chennai 600 002.

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