The Largest Track And Field Stadiums By Capacity

Rungrado 1st of May Stadium is the biggest stadium hosting track and field events in the world. Beijing National Stadium, also known as the "bird's nest". A stadium is a venue used to host mainly outdoor sports, concerts, and other events and can either be open to the elements or closed. The tracks are surrounded [...]

What Is Earth’s Magnetic Field?

Earth's geomagnetic field is generated by electric currents from its outer core. The Earth's magnetic field deflects solar winds. Earth’s geomagnetic field extends from its inner core to space. The interior of the Earth generates the magnetic field through a process called geodynamo. The magnitude of the magnetic field ranges between 25 and 65 microteslas and is [...]