A member of the group since its inception, he has recorded 14 studio albums with the band as well as one solo record.
Why do I, or any other human, get sore and cracked heels?
I understand it's less common in men than women – presumably this is down to footwear choices?
A golf ball has dimples on its surface to increase the efficiency of airflow over it and let it fly further.
Why isn't the skin of aircraft and cars similarly dimpled? Runners have long debated the difference between training on a treadmill and training on solid ground.
He has collaborated with U2 bandmate Bono on several projects, including songs for Roy Orbison and Tina Turner, and the soundtracks to the musical Spider-Man: Turn Off the Dark and the Royal Shakespeare Company's London stage adaptation of A Clockwork Orange.
As a member of U2, the Edge has won 22 Grammy Awards and has been inducted into the Rock and Roll Hall of Fame.
During his childhood in Dublin he possessed two differing accents to converse in, Welsh and Irish English, the former being used when he was in the family home and the latter when he was outside; as he later explained: "The reason for this dual identity was mainly to be understood by my peers but also to be accepted." Whilst the Evans brothers were at Mount Temple Comprehensive School in Dublin in 1976, they went along to a meeting in response to an advert posted by another pupil, Larry Mullen Jr., on the school's noticeboard seeking musicians to form a new band with him.
Among the several other pupils who also responded to the note were Paul Hewson and Adam Clayton.
They eventually became one of the most successful acts in popular music, with albums such as 1987's The Joshua Tree and 1991's Achtung Baby.
Over the years, the Edge has experimented with various guitar effects and introduced influences from several genres of music into his own style, including American roots music, industrial music, and alternative rock.
"Belt turnover" is commonly cited as a factor that helps to move your foot backwards and thereby makes running on a treadmill easier than running on the road. If so, wouldn't it be felt on any "moving" surface you walk on, such as a train or plane – or even Earth?