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Revealing the passport of
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Revealing the passport of

According to the Henley Passport Index released on October 9, Japan is currently the most powerful passport holder on the planet.

December 18, 2018
Why is there a 29/2 leap date?
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Why is there a 29/2 leap date?

Why is there a leap day? What is a leap year? What is leap month? Let's find out what a leap day, a leap month and a leap year are.

December 18, 2018
The bottle of Macallan Valerio Adami
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The bottle of Macallan Valerio Adami

To own the rare bottle of Macallan Valerio Adami, a mysterious giant in Asia had to pay a record price of £ 848,750 ($ 1.1 million - equivalent to about VND 25 billion).

December 18, 2018
Revealing Russian weapons at Vostok 2018
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Revealing Russian weapons at Vostok 2018

The United States paid special attention to the 2018 Vostok exercise, which was attended by Russian and Chinese soldiers, with many modern weapons mobilized.

December 18, 2018
How much oil does the fighter burn in 1 hour?
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How much oil does the fighter burn in 1 hour?

Fighter aircraft are the main weapons of every nation, every military background. To maintain 1 or a fleet, the cost is often very large. So how much oil does a fighter…

December 18, 2018
Is 2x4 sawn timber really 2x4?
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Is 2x4 sawn timber really 2x4?

What is the size of 2x4 sawn timber? If your answer is 2inch x 4inch then that is a completely wrong answer.

December 18, 2018
Huge German anti-aircraft turret
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Huge German anti-aircraft turret

During World War II, the Nazis built a series of anti-aircraft turrets against the Allies' air strikes.

December 18, 2018
Science finds the stone
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Science finds the stone

An extremely popular stone on the East and West coasts called Peridotite may be the savior of humanity in the future, when the Earth is getting hotter due to CO2 causing…

December 18, 2018