Airtel has introduced two new international roaming plans for users in India that offer voice calls and data in 189 countries. They are available with validity options of 10 and 30 days. Overseas travellers on Airtel postpaid connections can enjoy in-flight benefits with one of the newly released plans as well. Both new offerings are said to extend support for unlimited data.

There is a great need in healthcare, nanotechnology and other areas to improve our ability to see tiny objects that elude even the most powerful optical systems.