Kola Superdeep Borehole in Murmansk Oblast

What is the deepest hole in the world?

The Kola Superdeep Borehole is the deepest hole in the world as of January 2021. In 1970, Soviet scientists began drilling the Kola Superdeep Borehole in...
Mars Astronauts

How long will it take to fly to Mars?

Until flying through the Sun becomes a reality, it will take humans between six and ten months to reach Mars. The exact travel time depends on...
squirrel hiccups

Do animals get hiccups?

Most mammals (and some other animals) can get hiccups. Insects are a type of animal that does not get hiccups due to them not...
Speedometer

What is the difference between speed and velocity?

The terms speed and velocity are often used interchangeably. This is incorrect, and I will explain why below. Speed is a scalar measurement of the rate...
Red Blood Cells

How much blood do humans have?

The average adult has about 1.2 to 1.5 gallons (4.5 to 5.7 liters) of blood circulating inside their body. To put this into perspective,...

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