An experimental vaccine against the AIDS virus is being tested in South Africa. Scientists hope it will succeed where others have failed. Mujahid Safodien/AFP/Getty Images hide caption
Tim Fitzsimons
Stories By
Tim Fitzsimons
A mother gets antiretroviral drugs at the Chris Hani Baragwanath Hospital in South Africa in May 2012. Alexander Joe/AFP/Getty Images hide caption
A man uses a mobile phone in front of a Telenor ad for cheap sim cards in Yangon, Myanmar. Cheap mobile technology has ignited an Internet revolution in the once-isolated nation. Ye Aung Thu/AFP/Getty Images hide caption
A test on YouTube shows how the new iPhone 6 Plus can be bent. YouTube hide caption
Apple CEO Tim Cook speaks in Cupertino, Calif., on Tuesday. The company unveiled a new mobile payment system called Apple Pay, which uses security built into the latest iPhones. Justin Sullivan/Getty Images hide caption
The political changes brought about by the Arab Spring have raised hopes among high-tech entrepreneurs that this will translate into an improved business climate. Here, budding entrepreneurs work at Oasis 500, a seed investment firm in Amman, Jordan, on Nov. 2, 2011. Muhammad Hamed/Reuters/Landov hide caption
Even though more than 30 states have banned or restricted cellphone use, it hasn't been easy to convince drivers to stop. iStockphoto.com hide caption
Long associated with the Middle Ages, mead, a fermented honey wine, is making a comeback — and not just at Renaissance fairs. iStockphoto.com hide caption