How to Measure the Radius and Circumference of the Earth?
Measure the radius and circumference of the earth by using sticks, simple geometry, and explore how you can calculate your latitude from the data.
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Earth
How Deep Can We Drill into the Earth?
Have you ever wondered how deep can we drill into the earth? Find out and explore the modern drilling technologies and the factors that limit…
What Is a Leap Second and How Does It Work?
A leap second is something more than an adjustment factor. Explore the beautiful relationship between earth and moon, which led to the 'leap second' concept.
The Effect of Magnetic Pole Movements on the Runways
The movement of the north magnetic pole affects the runways forcing the airports to renumber them over decades. Here is the complete answer for your:…