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,...
Kola Superdeep Borehole

What is the deepest hole in the world?

The Kola Superdeep Borehole is the deepest hole in the world as of January 2109.In 1970, Soviet scientists began drilling the in Kola Superdeep Borehole in Murmansk, Russia...
Speedometer

What is the difference between speed and velocity?

The terms speed and velocity are often used interchangeably. This isn't correct, and I will explain why below.Speed is a scalar measurement of the rate...
nuclear weapon

How many countries have nuclear weapons?

Nine countries are known to have nuclear weapons. There are about 14,000 nuclear weapons in the world, a number that has been declining since...

Would detonating a nuclear bomb really turn a desert into glass?

Yes, it would. Well, at least a portion of it. We know this because that is exactly what happened when Trinity was detonated over...

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