Malima Episode #13: Have a good night – and a cool glass of water!

Malima (New Directions in Innovation) is a Sinhala language TV series on science, technology and innovation. This episode was produced and first broadcast by Sri Lanka’s Rupavahini TV channel on 27 September 2012.

Malima: Episode 13 (first broadcast 27 Sep 2012) from Nalaka Gunawardene on Vimeo.

Produced by Suminda Thilakasena and hosted by science writer Nalaka Gunawardene, this episode features the following items:

• An interview with inventor Nalaka Chandrawansa, who has developed an energy-efficient fan that can be fitted under a mosquito net. It consumes less than 20W to operate, compared with table fans (average 45W) and ceiling fans (average 70W), accumulating power savings. And because the compact fan provides a more targeted stream of air that cools the sleeper on the bed, it also does not stir dust elsewhere in the room that sometimes causes health problems. This innovation has been grated a Sri Lanka Patent, certified by Sri Lanka Sustainable Energy Authority and won a President’s Award in 2010. It is manufactured and marketed by the inventor himself. Details at: http://www.freshnight.net

• Introducing Sri Lanka’s indigenous technology: kedella karuwa, a simple tool for sweeping outdoors, which might have inspired the rake.

• A Japanese company has recently introduced the innovative ‘Grappa’ foldable shopping bag — which also doubles as a safety helmet in the case of a disaster. It is made of mesh fabric sides, much like a standard reusable shopping bag, but the bottom consists of hard plastic and expanded polystyrene (EPS), which is often found in safety helmets to absorb impact. More about this at: http://www.springwise.com/health_wellbeing/japanese-eco-friendly-shopping-bag-doubles-safety-helmet/

• An interview with schoolboy inventor Therusha Chethana Fernando, a student of De Mazenod College, Kandana, Sri Lanka. He has developed a portable water cooler that can chill water to 5 degrees C below outside temperature without using refrigeration technology or electricity. Instead, the simple device uses a permeable clay container and a battery-powered small fan. With 3 litres of water filled, the entire unit weighs 4 kg, easy enough to carry around.

Malima Episode #11: Finding Radius and Finding Way Around in a Computer

Malima (New Directions in Innovation) is a Sinhala language TV series on science, technology and innovation.

Produced by Suminda Thilakasena and hosted by science writer Nalaka Gunawardene, this episode was produced and first broadcast by Sri Lanka’s Rupavahini TV channel on 9 August 2012.

Malima: Episode 11 presented by Nalaka Gunawardene from Nalaka Gunawardene on Vimeo.

This episode features the following elements:

• An interview with Dinesh Katugampola, a textile engineer who has invented the world’s first Radius Metre that calculates the radius of a circle. The Radius Meter – which comprises measuring instruments as well as a software based calculator – instantly works out the radius an arch or sphere by measuring only small part of that arch or sphere. In practical terms, this helps plot major arches in mechanical engineering, road and building construction and in many other fields. This invention won a silver medal in mechanical designs category at ‘Inventions Geneva’ international exhibition in April 2012. More at: http://www.sundaytimes.lk/120429/BusinessTimes/bt25.html

• Introducing Sri Lanka’s indigenous technology: Dongaraya is a simple device used by farmers to make noise from the breeze that, in turn, scares birds away from paddy fields.

• A Japanese university research team has developed a machine that can measure brain waves and capture different moods. We have a news story on what this means for future of brain-machine interface.

• An interview with Nipun Kavishka Silva a Grade 9 student at De Mazenod College, Kandana, Sri Lanka, who — with his sister Pipunika Silva, has invented ‘NP System’: a computer operating system for blind and visually impaired people. It assists those who cannot see to use computers by providing voice instructions as they use a Braille keyboard and mouse or touchpad. They were winners at Intel International Science and Engineering Fair (ISEF) in Pittsburgh, USA, in May 2012. More info at: http://www.ft.lk/2012/05/24/sri-lankan-students-win-big-at-intel-isef-in-usa/