A gravel grid system adds an extra task to the process but is touted as a way to provide a stable surface and minimize ongoing maintenance. Gravel grids (often called permeable pavers) are ...

A garvel grid system used to retain gravel in a well-used pathway - Lari Bat/Getty Images ...

The concept of Mountain Gravity Energy Storage, or MGES, involves storing excess energy from the grid by raising sand or gravel to a higher elevation. This is achieved using a pair of cranes ...

the genre is becoming increasingly divided with a spectrum from fast gravel race bikes to bikes that will let you load up and head off on multi-day off-grid adventures. Read on for our pick of the ...