Sunday, December 11, 2011
Tuesday, December 06, 2011
The Writing Machine
Saturday, December 03, 2011
How Ballpoint Pens Work (HowStuffWorks.com)
How Ballpoint Pens Work
Ballpoint Design
The key to a ballpoint pen is, of course, the ball. This ball acts as a buffer between the material you're writing on and the quick-drying ink inside the pen. The ball rotates freely and rolls out the ink as it is continuously fed from the ink reservoir (usually a narrow plastic tube filled with ink).The ball is kept in place -- between the ink reservoir and the paper -- by a socket; and while it is in tight, it still has enough room to roll around as you write. As the pen moves across the paper, the ball turns and gravity forces the ink down the reservoir and onto the ball, where it is transferred onto the paper. It's this rolling mechanism that allows the ink to flow onto the top of the ball and roll onto the paper you're writing on, while at the same time sealing the ink from the air so it does not dry in the reservoir.
Thursday, December 01, 2011
Rizal (his characters)
The Many-Sided Personality | ||
Filipinos and foreigners alike have paid tribute to Jose Rizal claiming that his place of honor in history is secure. It was his Austrian bosom friend, Professor Ferdinand Blumentritt, rector of the Imperial Atheneum of Leitmeritz, who said "Rizal was the greatest product of the Philippines and his coming to the world was like the appearance of a rare comet, whose rare brilliance appears only every other century." Another German friend, Dr. Adolf B. Meyer, director of the Dresden |
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