Share Radio's technology editor Steve Caplin discusses some of the more interesting innovations in the tech world. There's a competition for remote-controlled cars on the moon, the idea of wooden satellites to curb space junk, Facebook finally paying for news content, Amazon's first TV, the mistakes on the H G Wells' coin, a professional Polaroid camera, anti-radiation stickers, the UK's first electric hearse, restarting pigs' brains and self-healing phone screens.