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'Insane' beauty tools in the early 20th century
Few doubts, nose-lifting aids, chin-cutting tools are not only prevalent today but have become familiar items for many people.
Device
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Articles about Device
2,900 published items.
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Understand the energy saving ratings on appliances
When shopping for household electrical appliances, Vietnamese consumers have not paid much attention to the cost of operating products, including the cost of electricity…
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Selfie stick was born 88 years ago?
The selfie stick is a very interesting invention in 2014. But in fact, this stick has a longer history than we thought.
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Areas of 'other planets' on Earth
Natural conditions and landscapes in some areas of the Earth, similar to Mars or Venus, can provide research information about life on other planets.
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Successfully simulating the space-time curve
Cornell University claims to have found a way to simulate the space-time curve with laboratory devices.
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CIA spy technologies use the 50s, 60s and 70s
From the 50s, 60s and 70s, the US Intelligence Agency (CIA) has built and used a lot of unique technology equipment for espionage and information gathering.
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The secret of escaping on the President of the United States
Air Force 1 is like the symbol of power of the United States with many mysteries that cannot be discovered
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Things to know about using electronic devices on aircraft
In some countries, you can use electronic devices during take-off and landing of aircraft.
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What is ping signal?
The Malaysian government's declaration of the fate of MH370 comes from signal analysis
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Why can the black box be
The mystery of the incident will likely only be revealed until the search teams recover the black boxes of the subsea aircraft.
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History of Modem
Modem (Modular + Demodulator) is a very popular technology device in the Internet era.
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Myths 'silly' in ancient Greece about people
Testicular regulation of the voice, eyes that contain light ... are human body mistakes that many ancient Greek scientists have proposed.
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Why can't firefighters hear the alarm?
Firefighters are equipped with emergency alarms with quite large sound intensity. However, their colleagues participating in fire fighting often do not hear this alarm.…
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A couple of interesting things about pencils and eraser
In the age of modern technology, we have many electronic devices that can be used to record. However, it is not so that we leave the necessary basic items that we have u…
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Tests reveal when a person will die
British scientists have developed a method of laser testing, able to reveal how much longer a person will live before returning home.