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

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.

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.

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.