Bharti Airtel is introducing specialised prepaid recharge plans including only voice and SMS services. The move comes after the Telecom Regulatory Authority of India (TRAI) issued a mandate last month to telecommunication operators in India. These new plans will not include bundled data and are aimed at consumers who do not have Internet connectivity requirements, such as feature phone users or those who use a secondary SIM card in dual SIM-enabled smartphones.

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.