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Interesting story about the school pen
Since ancient times in the civilization of the East and the West, people have known a unique science - the pen of literature (graphologie), which is based on the writing…
Pen
Browse ScienceInfo articles and explainers related to Pen.
Topic archive
Articles about Pen
81 published items.
Archeology
Discover one of the oldest Maya writings
After decades of questioning among archaeologists, it was not until recently that the Grolier book was verified.
Biology
Vegetables and interesting facts you've never known
Vegetables, tubers, and fruits are the foods we use every day, but you're sure you understand them all.
Animal world
Strengthens secrets to help snakes swallow big snakes
Flexible jaw and the ability to create huge pressure to swallow larger snakes is the mysterious ability of the snake god.
Animal world
These reproductive and survival behaviors are confusing in animals
Using a pen to fight against each other to choose a mate, blood spurt threatens the enemy, giving birth to another species ... are all acts of survival of a strange inst…
Scientific application
New solution to clean white board
The biggest drawback is that when you use a pen to write on a whiteboard when you delete it, you cannot erase all the stains on the board, making it blurry for a long ti…
Scientific application
Without friction?
Thanks to friction, you can sit, walk and work easily; thanks to it, the pen and book rests on the table, without the table slipping on the floor, even though the person
Scientific application
Dried mushrooms protect cotton from pathogenic fungi
Penicillium chrysogenum (PEN) is a type of mold used in pharmaceutical production. Its dried filamentous fungus is a waste product of penicillin production and is also e…
Scientific application
Why not use two different ink brands?
Many people have the habit of changing to use a new ink often rinse the intestinal pen, then new ink in. Do this because they know that pouring and 2 different ink often…
Environment
Strange story is unique: Planting with pencil
The impressive new invention of a pencil after it is no longer usable can be plugged into the ground to grow a plant that is causing a fever.
Photo library
The most ancient ancient inventions of humans still use
Let's review the things from ancient Greece and Egypt and still make our lives easier and more comfortable.
Photo library
See the world famous cities redrawn from memory
Only with pen and ink, painter Stefan Bleekrode working in the Netherlands spent a lot of time re-drawing his enchanting cities.
Photo library
3D image of 'tiny monsters'
British pen Tom Jackson and his colleagues spent 3 months completing the book 'Micro Monsters' ...
Videos
Video: Pen diagnoses cancer for 10 seconds
Scientists at the University of Texas, USA, developed a pen-shaped handheld device that can detect cancer in just 10 seconds.
Videos
Video: The pencil becomes a tree planting tool
Thanks to the seed attached at the end, discarded pieces of pencil will help the seedlings to germinate when plugged into the ground and watered.