内容摘要：Simone Collins is sitting in her 18th century cottage in Pennsylvania, dressed in a black pilgrim pinafore with a wide collar, bouncing one of her four children on her lap. It is 8.30am and she looks a little tired – she runs several businesses, a foundation and is currently pregnant with her fifth child, though she and her husband Malcolm plan to have more.

Simone Collins is sitting in her 18th century cottage in Pennsylvania, dressed in a black pilgrim pinafore with a wide collar, bouncing one of her four children on her lap. It is 8.30am and she looks a little tired – she runs several businesses, a foundation and is currently pregnant with her fifth child, though she and her husband Malcolm plan to have more.

The highest profile of those is Elon Musk. His car company, Tesla, is developing a humanoid robot called Optimus.that "several thousand" will be built this year and he expects them to be doing "useful things" in Tesla factories.

Other carmakers are following a similar path. BMWto a US factory. Meanwhile, South Korean car firm Hyundaiof robots from Boston Dynamics, the robot firm it bought in 2021.

Thomas Andersson, founder of research firm STIQ, tracks 49 companies developing humanoid robots - those with two arms and legs. If you broaden the definition to robots with two arms, but propel themselves on wheels, then he looks at more than 100 firms.Mr Andersson thinks that Chinese companies are likely to dominate the market.

"The supply chain and the entire ecosystem for robotics is huge in China, and it's really easy to iterate developments and do R&D [research and development]," he says.

Unitree underlines that advantage - its G1 is cheap (for a robot) with an advertised price of $16,000 (£12,500).Brickwork had been damaged, windows were smashed and paint was thrown across the room.

"Every window frame and window in the building has been smashed. That’s really the biggest damage," said volunteer Doug Stoddart."The door hadn’t been broken into, they’d smashed brickwork to get into the bottom of it and access upstairs."

British Transport Police said investigations were ongoing.Network Rail has been contacted for comment.