Long before the final design for the Borders Railway was adopted and then implemented, CBR had argued that the 35-mile route - comprising 30 miles of new line extending southwards from Newcraighall - should be designed with a two-tier service in mind. This would comprise stopping services running as far as Gorebridge (12 miles south of Edinburgh), and faster limited-stop services covering the whole line to Tweedbank.

Also, both hydrogen and helium (the next-lightest gas) would require weighty cooling systems to keep them storably liquid.

91% of Americans don't eat the recommended daily intake of green vegetables. This is a combination of the challenge of time, budget and the perception most of us picked up as kids that greens don't taste good.

I have a bone to pick with you and I can't possibly nap until we've had a jolly good chin-wag about it. / Chin-wag? / A powwow. A council of war.