Do you know what measurement Eratosthenes is famous for?
Earth and Space Science Concept of the Day
Do you know what this word or phrase means?
Plasmoid
xPlasmoid : A structure of plasma and magnetic fields proposed to explain several natural phenomena including magnetic bubbles in magentospheres and ball lightning
A magnitude-8.1 earthquake and tsunami that killed 192 people last year in Samoa, American Samoa and Tonga was in fact a triple-whammy. The 8.1 "great earthquake" concealed and triggered two...Read more