The A2B Hybrid 24 model expects you to pedal, increasing in speed the harder you work.

BBC: Rent an electric bike in London

That first model includes a 42x (24-1, 000mm) optical zoom lens while the latter sports a 30x (22.5-675mm) optic -- both offer lens-based image stabilization.

ENGADGET: Hands-on with Nikon's Coolpix P520 and L820 superzooms at CP+ (video)

It was a very serial model and applications were delivered about 24 months after the project was conceived.

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Fresh to the list is Revlon model Isabeli Fontana, who, at 24, has come out of semi-retirement after having two children.

FORBES: Magazine Article

The Venezuelan-born former model came to racing late, aged 24, and since then, has become one of motorsport's most prolific and versatile female drivers, racing all over the world at speeds often exceeding 200 miles per hour.

CNN: Female racer's lessons from life in the fast lane

Over the Christmas holiday, Mr Hefner announced he was to be married for the third time, to his 24-year-old girlfriend, model Crystal Harris.

BBC: Playboy accepts buyout offer from founder Hugh Hefner

PRVit is a 24-factor quantitative application of the fundamental EVA model for performance measurement and valuation.

FORBES: How The PRVit System Ranks Stocks

If you look at this in the same vane as a wireless subscription model, you can give away Zunes for free with a 24-month ZunePass subscription.

FORBES: Ditching Zune Doesn't Make A Lick Of Difference For Microsoft

In late April, SunEdison inked a deal to put solar panels up at 24 Kohl's department stores in California through a PPA model.

FORBES: Magazine Article

The 24-paged editorial, shot by photographer Steven Meisel, captures model Kristen McMenamy, covered in black grease, writhing about in feather dresses on a rocky, post-apocalyptic-looking beach, evoking the real-life images of oil-coated birds gasping for breath that dominated coverage of the spill.

FORBES: BP Oil Spill Provides Inspiration For Italian Vogue Shoot