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Articles tagged with: scientist

Tiny Camera That Could Revolutionize Surgery

A microscopic ‘pinhead’ camera has been developed that costs pennies to make and could have a host of applications, from surgery to robotics.

The device is small enough to fit on the head of a pin and contains no lenses or moving parts. It is created from pieces of silicon doped to make them sensitive to light at different angles.

‘Super Sand’ To Clean Up Dirty Drinking Water

Contaminated water can be cleaned much more effectively using a novel, cheap material, say researchers. Dubbed “super sand”, it could become a low-cost way to purify water in the developing world.

The technology involves coating grains of sand in an oxide of a widely available material called graphite commonly used as lead in pencils.
The team describes the work in the American Chemical Society journal Applied Materials and Interfaces.

The World Health Organization states that “just 60% of the population in Sub-Saharan African and 50% of the population in Oceania [islands in the tropical Pacific Ocean] use improved sources of drinking-water.”

Explore The NASA Jet Propulsion Laboratory For Free!

NASA first integrated with Twitter back in 2009, and has been networked closely with the social media service ever since. The latest Tweetup will include NASA choosing 120 Twitter followers at random to visit the Jet Propulsion Laboratory on Monday, June 6th. NASA notes that since only four space missions left for this year and an asteroid belt encounter almost underway, 2011 will be one of the busiest years in planetary exploration.