Made out of clay and a non-toxic glue similar to that used in school classrooms, the composite plastic is biodegradable and requires very little energy to produce, lead researcher Nicholas Kotov, University of Michigan, US, said.
Happy New Year 2021
Tuesday, October 09, 2007
Eyecatchers-34 : Plastic as strong as Steel - AFP
Eyecatchers-33 : Perfect Practitioner
Friday, October 05, 2007
Facts and Figures-7: The Sethusamudram Shipping Canal Project (SSCP)-1:
* It would reduce the steaming distance by 780 km and save 30 hours of sailing time as currently ships have to go around Sri Lanka.
Eyecatchers-32 : Earth-like Planet Forming Elsewhere! - AFP
At somewhere between 10 and 16 million years old, the planet’s solar system is still in its “very young adolescence,” but is at the perfect age for forming earth-like planets, said lead researcher Carey Lisse of Johns Hopkins University’s Applied Physics Department.
The massive dust ring surrounding one of system’s two stars is smack in the middle of the system’s ‘habitable zone’ where water could one day exist on a rocky planet.
These type of dust belts rare form around sun-like stars and the presence of an outer ice belt makes it all the more likely that water, and subsequently life, could one day reach the planet’s surface.
And this belt is made up of rocky compounds similar to those which form our Earth’s crust and metal sulfides similar to the material found in the Earth’s core.
“It is just right stuff to be making an Earth,” Lisse said in a telephone interview. “It is exciting to think that this is happening.” Not that Lisse will be around to see much of it.
The images captured by NASA’s Spitzer Space Telescope are about 424 years old, but that is barely a blink in the eye of the young planet.
It will likely be about 100 million years before the planet is fully formed and – if our planet is anything to go by – about a billion years before the first signs of life such as algae appear, Lisse said.
The evolution of complex organisms such as dinosaurs will probably take another couple of billion years if the new planet follows a pattern similar to ours, he added.
But the images captured have helped Lisse and colleagues understand a lot about how an Earth-like planet could form.
While mathematical models can be created to extrapolate what will happen to this particular system, even more can be learned if astronomers continue to probe the universe for other Earth-like planets at various stages of development.
Right now, the planet in the system known as HD113766 is growing as dust grains clump together to form rocks and these rocks collide to form larger bodies, some as big as our own moon. AFP
Wednesday, October 03, 2007
Facts and Figures-6: "India has Largest Diabetic Population" by Dr.Gita Mathai
Facts and Figures-5: "Fountain Pens and Ballpens"
The first pen was invented more than 2500 years ago by the Greeks. It was made out of a reed. During the middle ages, the quill pen was introduced and for more than a thousand years it prevailed. Feathers of the goose were most commonly used but swan feathers would be used for premium grade pens. Each quill pen lasted only a week.
The smallest fountain pen in the world has a tip which is so tiny that the lines drawn by it cannot be seen with the naked eye. The lines are just a few molecules wide - thinner than even the red blood cells in our body! This pen is attached to a microscope and used by scientists while drawing or marking on minuscule objects.
Angelika Unverhau of Germany has the largest collection of ballpoint pens in the world - approximately 220,000 different types. On an average, she adds 30,000 pens to her collection every year.
A special pen, which can be used in space, has been invented by Fisher. This pen can write under any condition - zero gravity, under water, at any angle - even upside down. Its ink is not affected under extreme temperatures. This pen is used by American as well as Russian astronauts.
BIC reports sales of 14,000,000 pens daily.
Courtesy: School Magazine, Supplement to The New Indian Express, Madurai, October 3, 2007.
Gandhiana-4: "Gandhiji's View on Women"
Gandhiana-3: "International Day of Non-Violence"
Let us rededicate ourselves to the path shown by the Mahatma.
Gandhiana-2: "India of My Dreams" by Mahatma Gandhi
Monday, October 01, 2007
A Thought for Today-91: September 24, 2007
A Thought for Today-90: September 23, 2007
A Thought for Today-89: September 22, 2007
A Thought for Today-88: September 21, 2007
A Thought for Today-87: September 20, 2007
A Thought for Today-86: September 19, 2007
and your gaze be straight before you
Keep straight the path of your feet,
and all your ways will be sure.
- Proverbs 4:25-26
