Upriver here and at the Sandrift River, which runs parallel 10 miles to the east, the colour of the water is striking - imagine looking into a cup of strong, dark coffee.

BBC: The perfect trip: South Africa

During breaks, Medeiros' mother, Beaters Diacopulos Rondon, combines powder from caffeine-rich guarana seeds with bottled water in a silver drinking cup.

FORBES: Journey: Painful pleasure

During breaks, Medeiros' mother, Beatriz Diacopulos Rondon, combines powder from caffeine-rich guarana seeds with bottled water in a silver drinking cup.

FORBES: Painful pleasure

The glistening arc of water overruns the waiting cup, misses its mark, splashes over table and chair-the pitcher slipping from defeated fingers, striking the stone floor, shattering into jagged shards.

NPR: Excerpt: 'Woodsburner'

Seventy-four years after the last J-boats sailed in the America's Cup, there are six in the water, including replicas built in 2002, 2009 and 2010.

FORBES: Magazine Article

He created the "Solo Cup, " a paper cone he made in his garage and peddled to bottled-water producers.

FORBES: Party's Over

It might not be the quickest method -- as you'll see in the video below, making a glue cup takes a good hour -- but it's effective enough for transporting and pouring water.

ENGADGET: Robot uses glue gun to make tools, hopes to ace Survival Skills 101