Check out the latest Science For Thought Volume 3 No. 6 [ Nov / Dec 2017 ] !
Click on the following link to read the special issues of the Scientific American from few years ago. It would be an interesting read for all ages.
- Participation is open to all U6 2018 of Pusat Tingkatan Enam Tutong.
- Topics are open-ended, but need to be narrowed down once nominated as finalists.
- External adjudicators could be involved and live questions-and-answers session.
- 10-15 minutes talk, 5 minutes QnA
- Speak to Mr Onn before December holiday to register interest, so that can prepare over the holiday.
Engineers working to make solar cells more cost effective ended up finding a method for making sonar-like collision avoidance systems in self-driving cars.
The twin discoveries started, the researchers say, when they began looking for a solution to a well-known problem in the world of solar cells.
Solar cells capture photons from sunlight in order to convert them into electricity. The thicker the layer of silicon in the cell, the more light it can absorb, and the more electricity it can ultimately produce. But the sheer expense of silicon has become a barrier to solar cost-effectiveness.
So the engineers figured out how to create a very thin layer of silicon that could absorb as many photons as a much thicker layer of the costly material. Specifically, rather than laying the silicon flat, they nanotextured the surface of the silicon in a way that created more opportunities for light particles to be absorbed.
Their technique increased photon absorption rates for the nanotextured solar cells compared to traditional thin silicon cells, making more cost-effective use of the material.
It is with deep regret that we have to cancel PTET Science Outreach 2017 due to unavoidable circumstances. We thank you for your interest regarding this thus far and hope to return next year.
Lunchtime lecture positions are open for next year’s forum talks. In addition, our annual PTET Youth Science Symposium will go on as normal.
- Thursday, 28th September 2017
- 12.45-1.15 p.m
- LT Excellence
Despite signs that numbers of giant pandas are rising, suitable habitat has shrunk, according to satellite data.
The forests where the panda lives are in worse shape than in 1988, when it was first listed as endangered, scientists say. Continue reading “Panda’s habitat ‘shrinking and becoming more fragmented’”
- Thursday, 14th September 2017
- 12:45pm – 1:15
- LT Excellence
Mouse study points to why breathing in spores from one mold species doesn’t usually cause health problems
Immune cells can turn certain invaders on themselves, forcing them to prematurely self-destruct, researchers have discovered.