Important technology is going underground. A company called EarthGrid has a new machine. It uses hot fire to melt hard rocks.
This machine makes deep tunnels. It is like a rocket in the ground. It helps workers hide power cables.
It helps hide data centers too. Why do we put things underground? It is safer there.
Drones and storms cannot hit things inside a tunnel. Some data centers are now inside cool caves. This saves energy.
Subsea cables are deep under the ocean. They stay safe from ships there. It is expensive to build these tunnels.
But many countries want to protect their power. They will use this technology more.