Queen, Duchess of Cambridge encounter robotic arm at London's King's College

Britain's Queen Elizabeth and Catherine, Duchess of Cambridge visit open Bush House at King's College London, in London, Britain March 19, 2019. Paul Grover/Pool via REUTERS

LONDON (Reuters) - Britain's Queen Elizabeth and Kate, Duchess of Cambridge, opened a research center at King's College university in London on Tuesday and the duchess gave a tentative handshake to a robotic arm.

The pair opened Bush House, a newly converted suite of lecture theaters and teaching rooms at the university, and met students from the Centre for Robotics Research and Entrepreneurship Institute.

Britain's Queen Elizabeth and Catherine, Duchess of Cambridge visit open Bush House at King's College London, in London, Britain March 19, 2019. Paul Grover/Pool via REUTERS

(Reporting by Reuters television; Writing by Alexandra Hudson; Editing by Frances Kerry)

Britain's Queen Elizabeth and Catherine, Duchess of Cambridge receive flowers during a visit to open Bush House at King's College London, in London, Britain March 19, 2019. REUTERS/Simon Dawson

Britain's Queen Elizabeth and Catherine, Duchess of Cambridge arrive to open Bush House at King's College London, in London, Britain March 19, 2019. REUTERS/Simon Dawson

People wait to greet Britain's Queen Elizabeth and Catherine, Duchess of Cambridge, during their arrival to open Bush House at King's College London, in London, Britain March 19, 2019. REUTERS/Simon Dawson

Former British Prime Minister John Major attends the opening of Bush House at King's College London, in London, Britain March 19, 2019. REUTERS/Simon Dawson

Britain's Catherine, Duchess of Cambridge receives flowers during a visit to open Bush House at King's College London, in London, Britain March 19, 2019. REUTERS/Simon Dawson

Britain's Queen Elizabeth smiles during a visit to open Bush House at King's College London, in London, Britain March 19, 2019. REUTERS/Simon Dawson