C. public schools financially stable, meaning they lose no funding when their students transfer elsewhere.

FORBES: Commentary

Low Power Consumption: The M3D display technology is bi-stable, meaning that the display requires no power to maintain an image, as power is only needed when transitioning from one time to another.

ENGADGET: Phosphor's Reveal wristwatch uses Swarovski crystals to tell time, bedazzle you

Meanwhile, in the U.S., 14 percent of us save 15 percent or more of our income and 51 percent of us say we are either in immediate financial trouble or not financially stable, meaning living paycheck to paycheck.

FORBES: For Investors, A Truer Story About China

But it added that the outlook for the UK is "stable", meaning it sees no further downgrades in the near future, and added "the UK's creditworthiness remains extremely high".

BBC: UK loses top AAA credit rating for first time since 1978

They might never generate the most energy, but the all-carbon cells can remain stable under extreme conditions, meaning they could find their calling in harsh environments where brawn is a little more important than status, or looks.

ENGADGET: Stanford researchers create 'world's first' all-carbon solar cell, do it on the cheap

At the current pace of economic growth, oil demand is rising about as fast as supply, meaning that prices are roughly stable.

FORBES: Truckers: Don't Fear Higher Diesel Prices

Chris Towner, of foreign currency exchange brokers HiFX, notes that the UK is on a stable outlook from Moody's, meaning there are unlikely to be any further shocks for the currency in the near future.

BBC: Credit ratings, the pound, currency movements and you