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The deadly experiment made Edison afraid of X-rays
The death of his close assistant caused Edison to become afraid of X-rays and stop researching fluorescent lamps.
Hand
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Articles about Hand
1,231 published items.
Discover science
Detection of gene variation that leads to left-handedness
Researchers identified rare variants of a gene involved in controlling cell shape and found that the number of this gene variant was 2.7 times higher in left-handed peop…
Oceanography
Discovery of extremely rare pink hand fish in the wreck of the SS Tasman
Divers exploring an SS Tasman shipwreck off the coast of Tasmania were in for a surprise when they discovered an extremely rare pink handfish.
Videos
A domestic dog 'fights' hand to hand with two lions and the ending is unexpected
Being continuously attacked by the dog, the male lion could only step back without any resistance.
Flu epidemic
How dangerous is the emerging flu epidemic in India?
Tomato flu has no vaccine and no treatment, symptoms are similar to hand, foot and mouth disease.
Funny corner
Strange eating rules of countries around the world
Everyone knows that each country and region will have its own customs, habits and cultural rules. But there are many countries with strange and confusing rules that conf…
Biology
Japanese experts share how to kill cockroaches and avoid this nasty animal
According to Japanese experts, here are the best ways to kill cockroaches and some ways to prevent them.
Medicine - Health
Washing hands with soap but not killing bacteria, the simple reason is this
Soap is a familiar item when we wash our hands or when we want to clean our body.
Discover science
Possessing these characteristics on your body, you will be in a smarter group than the rest of the world
Turns out, these features on the body also reflect a person's intelligence.
Health
Learn about OCD - Obsessive Compulsive Disorder
OCD (Obsessive Compulsive Disorder) is also known as Obsessive Compulsive Disorder. This is a mental disorder of chronic nature, the common sign of the disease is being…
Animal world
Why do octopuses eat eggs and gnaw their hands?
Many animals die soon after spawning, while the mother octopus eats her eggs when she is about to hatch, then bites herself, eats her arm… Why is that?
History
The truth about the famous royal family in world history: The king who stood out of ten thousand people still 'upped his hand' to ask for money from his wife
When Tsar Nicholas II went to church, he often put 5 rubles with his own portrait in the charity cup like other parishioners.
Archeology
The mysterious ceramic vase is actually a 900-year-old 'deadly weapon'
Chemical analysis revealed that the contents of the jar contained explosives.
Science story
How is the most expensive salt in the world produced?
Korean bamboo salt is a luxury product that can cost over $100 per 240g jar. The price is mainly determined by the process of making it completely by hand and requires a…
New technology
Using 3D printers, scientists create angelic robotic fingers
Scientists have created a robotic hand that uses artificial neural signals for tactile sensations similar to human skin, or even more.