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Relationship between Santa's Weight and Roofs

In a child's fairy tale, it is said that Santa Claus with his wagon train will cross the roof of the house to distribute gifts on Christmas Eve.

The boy's tale became a "trivial but important" research material by Swedish construction company NCC. In their research, they calculated the relationship between the weight of Santa Claus and the average resilience of a rooftop in Sweden.

Positive and Negative Impacts of Drone Use

Can not be denied, the presence of technology is like a coin that has two sides. No matter how sophisticated the technology is, it has a good side and a bad side. This also applies to drones .

Ease of getting and using drones is very helpful to humans. Its relatively small and sleek shape makes the drone get into narrow gaps. Malicious activities such as monitoring the structure of the chemical industry can also be replaced by drones .

Able To Be A Weapon Of Mass Destruction, This How It Works Ballistic Missiles!!!

The launch of a Hwasong missile that is claimed to reach the United States (AFP / Korean Central News Agency)
A number of countries include intercontinental ballistic missile (ICBM) missiles in their weaponry lists.

Is Albert Einstein's Theory of Happiness Proven to Be Happy?

Albert Einstein

In 1951, Albert Einstein published the Theory of General Relativity. Over a hundred years later, the theory proved to be the most successful framework for understanding the universe.
The theory, guiding scientists to understand black holes, expanding time, gravitational waves, and many other discoveries.

In addition to formulating General Theory of Relativity, he also 'formulated' other theories. Not about physics, as in the field of science that it contains, Einstein reveals his theory of how to have a happy life.

How Does a Spider Make the Net?

Spider webs | Creative Commons

The spider makes a net to catch its prey. Anyone know, how the spider makes a net?

Who would have thought this "weird" thing was in the 25 Best Discovery of TIME version

(Photo: The Verge)

Some time ago TIME has released a list of 25 products that are considered the best invention in 2017. Apple-made smartphone, iPhone X, to be one of them. In addition there is also Nintendo Swtich which combines console games with portable console.

However, from the number of objects that are included in the list, there are some objects that may seem strange. What are these objects?