Gold Has Longest Rally in Four Weeks on China

Aug. 12 (Bloomberg) -- Su Keenan recaps today's top commodity stories. She speaks on Bloomberg Television's "Bottom Line." (Source: Bloomberg)

Jetpack gets lift-off approval (1:05)

August 13 - New Zealand jetpack developer gets Civil Aviation approval for manned test flights of their 'motorbike in the sky.' Ciara Sutton reports

Pee-powered cell phone points to 'smart toilet' technology (2:32)

Aug. 13 - Does the call of nature hold the answer to a new form of renewable energy? Scientists in the UK are confident that it does. With backing from both the British government and the Bill and Melinda Gates Foundation, the researchers have developed a method for charging mobile phones with human urine. Matthew Stock reports.

Billionaire lifts lid on "Hyperloop" futuristic transport (0:42)

Aug. 12 - Billionaire, Elon Musk lifts lid on ''Hyperloop'' futuristic transport. Deborah Lutterbeck reports