Discover science
How to use safe rolling door
Rolling doors today are quite popular among families, shops and companies. Using rolling doors to bring more convenience, luxury, save space and time but not everyone kn…
System
Browse ScienceInfo articles and explainers related to System.
Topic archive
Articles about System
5,630 published items.
Discover science
Why does Vietnam use 220v voltage but Japan only uses 110v?
If you are an attentive person, you easily realize that electrical items brought from the US or Japan are often required to be used with a switch ...
Discover science
Headache to find the answer to the question:
The following lines of contradiction and assertions below will provide more interesting perspectives that delve into the core of this issue.
Discover science
Visit Facebook's data center, where the app tests over 2,000 phones at the same time
Facebook builds its own zone, its shelf design and its own automation system to ensure that its app runs well on a variety of devices.
Discover science
Watch the Pyramid guard machine to see how smart the ancient Egyptians were
Ancient Egyptian engineers put a lot of effort into designing the security systems for the Pharaoh's tomb.
Discover science
Answer the question of how to wake a deaf person when a fire occurs
But how to warn a deaf person who is sleeping very drunk during the night? The fire alarm was useless because they couldn't hear it.
Discover science
What is the floating button on the elevator for?
Have you ever wondered why the buttons in the elevator always have small floating dots?
Discover science
Why is the power button of electronic devices all this symbol?
The power button of electronic devices has become too familiar to us, but have you ever wondered why the power button is this symbol?
Discover science
You can't photocopy paper money, even photoshop can't do it
With the old currency, you cannot copy because the banknote has EURion constellation system, it is small spots that appear on almost all types of money.
Discover science
What happens when you are bitten by a cobra
Cobra venom can attack the nervous system, cause infection and disturb the heart rhythm, causing death in less than an hour if not treated promptly.
Discover science
Does the 'air conditioner' fan really regulate?
In recent times, many types of electric supermarket systems have appeared
Discover science
Turn your phone into a wireless charger with just a sticker
A French company has introduced a wireless charging system that uses an ultra-thin sticker.
Discover science
How airplanes provide air to passengers
When the aircraft flies high, the air gradually dilutes, so the aircraft needs a ventilation system to ensure sufficient oxygen supply to passengers at the same pressure…
Discover science
What happens when you swallow gum
If accidentally swallowed, chewing gum can resist digestive processes, but eventually it is eliminated from the body after a few days.
Discover science
Why is the US still using computer systems from 1970 to control nuclear missiles?
Surely you did not misread the title by the latest report that revealed that a large number of US nuclear arsenals are still being managed and controlled by a computer s…