Planet Earth

Why the salt in the Dead Sea keep increasing even though it continuously keeps adding fresh water from the river?

Outer Space

What kind of a star is called White Dwarf?

Planet Earth

Who was the first to estimate the weight of the Earth?

How things work

How is cold generated in a refrigerator? Why is icebox positioned on top in a fridge?

Outer Space

Why is the Moon sometimes visible during the day?

Science and Technology

Why are the windows in airplane passenger cabins oval?

World

Why Mediterranean Sea is named so?

Outer Space

Could Jupiter ever become a star? If it did, how would it affect the solar system?

Planet Earth

What is the peculiarity of the natural wonder Angel Falls?

Outer Space

Does Every Planet Have A Law Of Gravitation?

Science and Technology

Does Light Get Fainter As It Travels?

How things work

How does soft water differ from hard water?

Outer Space

What did Galileo Galilei see when he turned the first telescope to the Sun?

Science and Technology

Is there any specific difference between mass and weight?

Science and Technology

Why does milk turn sour? What gives it sour taste?