There are so many man-made satellites out there, it’s around 2666 satellites (UCS, 1 Apr ’20). But have you ever wondered how high are satellites?
Physics Science
Why Do Comet Tails Point Away From the Sun?
Have you ever observed the NEOWISE comet or another comet? If you notice, the comet’s tail always leads away from the sun. But why?
Asteroid Belt 101: Definition, Origin, Shapes, and Misunderstanding
The...
Survivorship Bias: Dangerous Logical Fallacy
Without us knowing it, maybe we have been or even are trapped in one of the most common logical fallacies. This is called survivorship bias.
Life Science
How Does UV Light Kill Germs?
UV light is an effective disinfectant for disinfecting. Main used in disinfectant. But have you ever thought, how does it work to kill germs?
Does Drinking Alcohol Can Kill Viruses and Bacteria?
Alcohol is one of the most important compounds because it can be easily changed to and from many other types of compounds.
Why Is Earth’s Surface Not Covered With Poop?
All living things produce waste substances. Total human and animal feces production in 2030 is estimated that it will touch 4.6 million tons per year.
Do Humans Decompose If They Died in Space?
Humans get ready to explore outer space and live there permanently. But if humans die out there, what happens to the human body?
Social Science
Survivorship Bias: Dangerous Logical Fallacy
Without us knowing it, maybe we have been or even are trapped in one of the most common logical fallacies. This is called survivorship bias.
Operation Overlord: The Largest Sea Invasion in History
Operation Overlord is the codename of a sea invasion by allied forces against the axis block in the Normandy area, the northern coast of France.
Blitzkrieg: German Lightning Tactics
At the World War II, Germany tried to avoid a prolonged war and uses a strategy that is to uses tactics to destroy his enemies in a series of short battles.
What is Ethical Politics? | Ethical Politics and Youth Pledge, Policies and Deviations
The youth pledge is one of the historic events for the Indonesian people, occurred on October 28, 1928, became a milestone of independent of Indonesia.
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