The long-running series in which readers answer other readers’ questions on subjects ranging from trivial flights of fancy to profound scientific and philosophical concepts
Readers reply: Why put solar panels on green space when we could put them over car parks?
France and Italy play rugby to a very high standard, but Germany has no comparable rugby culture. Why? Tim Hare, by email
Post your answers (and new questions) below or send them to nq@theguardian.com. A selection will be published next Sunday.
