March 22, 2018, 1:53 a.m.
There's Always Pi!
Just by determining how circular a given crater is – using pi and the crater’s perimeter and area – planetary geologists can reveal clues about how the crater was formed and the surface that was impacted.
tutti - social network
Tutti is the simplest social network on internet. Here you can make friends, create communities, sell things, make surveys, comment and share stuff.
Un avión ambulancia Westwind 24, de la aerolínea Lion Air, se incendió hoy al intentar despegar en el aeropuerto Ninoy Aquino de Manila con ocho personas a bordo, todas fallecidas.
