Airtel has updated an existing International Roaming (IR) plan for postpaid users in India. The Rs. 2,999 roaming plan, which comes with a validity of 10 days, offers unlimited data access but with an FUP limit of 5GB. However, Airtel has now doubled the high-speed data usage limit within the plan. Users opting for the plan will now get 10GB of high-speed data, after which the data usage will be charged.

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.