Prince Charles and Narendra Modi light up the science museum

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Britain's Prince Charles, Prince of Wales and India's Prime Minister Narendra Modi visit the Science Museum in London on April 18, 2018, the third day of the Commonwealth Heads of Government Meeting (CHOGM). / AFP / POOL / HANNAH MCKAY

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Britain's Prince Charles, Prince of Wales and India's Prime Minister Narendra Modi pose with dancers during a visit to the Science Museum in London on April 18, 2018, the third day of the Commonwealth Heads of Government Meeting (CHOGM). / AFP / POOL / HANNAH MCKAY

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Britain's Prince Charles, Prince of Wales greets dancers during a visit with India's Prime Minister Narendra Modi to the Science Museum in London on April 18, 2018, the third day of the Commonwealth Heads of Government Meeting (CHOGM). / AFP / POOL / HANNAH MCKAY

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Britain's Prince Charles, Prince of Wales and India's Prime Minister Narendra Modi visit the Science Museum in London on April 18, 2018, the third day of the Commonwealth Heads of Government Meeting (CHOGM). / AFP / POOL / HANNAH MCKAY

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Britain's Prince Charles, Prince of Wales greets dancers during a visit with India's Prime Minister Narendra Modi to the Science Museum in London on April 18, 2018, the third day of the Commonwealth Heads of Government Meeting (CHOGM). / AFP / POOL / HANNAH MCKAY

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Britain's Prince Charles listens as a woman speaks to him during a visit to the science museum with India's Prime Minister Narendra Modi in London, April 18, 2018. REUTERS/Hannah McKay/Pool

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Britain's Prince Charles, Prince of Wales and India's Prime Minister Narendra Modi visit the Science Museum in London on April 18, 2018, the third day of the Commonwealth Heads of Government Meeting (CHOGM). / AFP / POOL / HANNAH MCKAY

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Britain's Prince Charles, Prince of Wales and India's Prime Minister Narendra Modi visit the Science Museum in London on April 18, 2018, the third day of the Commonwealth Heads of Government Meeting (CHOGM). / AFP / POOL / HANNAH MCKAY

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Britain's Prince Charles and India's Prime Minister Narendra Modi visit the science museum in London, April 18, 2018. REUTERS/Hannah McKay/Pool

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Britain's Prince Charles, left, speaks with India's Prime Minister Narendra Modi during a visit to the Science Museum in London, Wednesday, April 18, 2018. Modi is in London to attend the Commonwealth Heads of Government Meeting. Britain is seeking to bolster its trade ties in anticipation of Brexit. (Hannah McKay/Pool Photo via AP)

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Britain's Prince Charles and India's Prime Minister Narendra Modi visit the science museum in London, April 18, 2018. REUTERS/Hannah McKay/Pool

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Britain's Prince Charles and India's Prime Minister Narendra Modi visit the science museum in London, April 18, 2018. REUTERS/Hannah McKay/Pool