a solid ball of metal. At least, that is what scientists thought. New research published in the journal Nature Geoscience found that the core's shape has shifted during the past 20 years.

Formless 'slime' robots that shape-change to complete complex ... from the Chinese University of Hong Kong, for example, or this liquid metal Lego man, capable of melting and re-forming itself ...

Earth’s innermost layer is a hot, solid ball of metal surrounded by a liquid metal ... changes taking place over the past 20 years in the shape of the inner core. Signs of the core’s ...

The metal microbot, made out of liquid metal ... including fast movement and heavy load bearing when it is in its solid state, and shape changing in its liquid state,” Chengfeng Pan, an engineer ...

When Majidi and his colleagues used an alternating magnetic field – one whose shape changes predictably over time – electrons in the robot’s liquid metal ... this good at changing its ...

Different materials expand and contract at different rates – metals and ceramics, for example ... behaves like metal is pretty remarkable.” The idea for developing the game-changing molecule ...

The core of their considerations is that the robot should be able to automatically adapt its shape to the terrain in which it is moving. For example, it can drive, roll passively or swim.

Force – Use of strength or high energy that can change a material's shape. Malleable – A material that can be bent and shaped without breaking, like metal. Stretch – A material that can be ...

(CNN) — Scientists who just months ago confirmed that Earth’s inner core recently reversed its spin have a new revelation about our planet’s deepest secrets — they identified changes to the inner core ...