5 most interesting facts about world

1.There are more than 24 time zones around the world.

2.There are 43 countries that still have a royal family

3. All giant pandas in zoos around the world are on loan from China.

4. Canada has nine percent of the world’s forests.

5. The red-billed quelea is the most common bird on Earth.

5 Most Interesting Facts About the World

1. There are around 4 quadrillion quadrillion bacteria on Earth.

2. Muhammad is thought to be the most popular name in the world.

3. The most expensive coin in the world was sold for more than $7 million.

4. South Sudan is the youngest country in the world.

5. More than 52 percent of the world’s population is under 30 years old.

5 Most Interesting Facts About the World.

1.North Korea and Cuba are the only places you can’t buy Coca-Cola.

2.The entire world’s population could fit inside Los Angeles.

3.The hottest chili pepper in the world is so hot it could kill you.

4. The world’s most densely populated island is the size of two soccer fields.

5. The world’s quietest room is located at Microsoft’s headquarters in Washington state.

Thanks you

What Is String Theory? A Simple Overview

1.String theory says that indivisible subatomic particles are made of tiny little strings vibrating in a specific pattern.
2.Each vibrational pattern corresponds to a different particle.
Electron is nothing but a string vibrating in one pattern, and a proton is a string vibrating in a different pattern.
3.It is just a mathematical concept, there is no experimental proof of String Theory.

2 Types of Rockets | Based On Propulsion And Their Usage

1.Rocket Car

Opel RAK.2 | Image credit: Späth Chr.

You may have heard about jet cars, but what about rocket cars? In contrast to a jet-powered car, a rocket car carries both fuel and oxidizer, which eliminates the need for a compressor and an air inlet, which in turn reduces the total weight and minimize drag.

These cars can run their engines for short durations (<20 seconds), and because of their magnificent thrust-to-weight ratio, they can reach high speed quickly.

2. Solid-Propellant Rocket

The Columbia Space Shuttle was launched with the help of two solid-fuel boosters Image Courtesy: NASA

All older firework rockets were powered by solid engines that use solid propellant. However, there are now new designs, more advanced fuels, and functions with solid propellants. Today, advanced state, solid propellant engines are mostly used in the Delta series booster stages and the Space Shuttle dual booster engines.

Solid propellants can be made of numerous compounds, for example, Black powder (contains charcoal, sulfur and potassium nitrate), Zinc-sulfur, potassium nitrate, and composite propellants based on ammonium nitrate or ammonium perchlorate.

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Haunted house 😱

The Villisca Axe Murder House in Villisca, Iowa

On June 10, 1912, Josiah and Sarah Moore were bludgeoned to death inside of their home in Villisca. Their four children—and two friends who were spending the night—were also killed, and to this day, the crime remains a mystery. Their home is considered one of the most haunted houses in the country, and guests are drawn to it. People even pay $400+ to stay for one night.

508 E 2nd St, Villisca, IA 50864, United States

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