Plank's son Roger, 42, who serves as chief financial officer, keeps a reminder of those days on his desk: a small vial of foul-looking water with a thin layer of crude oil on the top.

FORBES: Dry powder

Each of us wore a lightweight pack, with a water supply fitted to a thin plastic tube to suck on while we ran.

FORBES: Pain is good

Both devices combine top-notch specs with beautiful industrial design -- pure rectangular forms with a mirror-like finish packaged in thin, light and water-resistant shells.

ENGADGET

She also melted chocolate with porcini powder and streamed ribbons of the mixture into cold water to form thin branches.

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