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  01:27

  What were the main events which led t...

  What were the main events which led t...

  Kindly answered by Dr Saul Yardley. Saul is a military historian and PhD graduate from the University of Cambridge.

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  01:18

  How do driverless vehicles avoid haza...

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  Kindly answered by Tejo Jehart. Tejo is a PhD mechanical engineering student at the University of Oxford.

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  01:02

  Do crossbreed dogs live longer than p...

  Do crossbreed dogs live longer than p...

  Kindly answered by Dr Sam Khan. Vet and resident professor, University of Cambridge.