The good folks at the Delft University of Technology came up with a dragonfly-like winged machine that can fly completely autonomously until the batteries allow.
You will find out how to summarize cells that have a same color of the font, the red one in my case. Really useful when working with different types of specific data in Excel.
Amazing images made out of photos of modern day locations blended together with historic events that took place at those very locations. Amazing work, you need to see these.
We are losing our top large predators as their numbers are constantly falling bringing many species to the very edge of extinction, which has been causing harmful reactions across the landscapes and food chains.
There are about 7 billion people living on our planet. If we would all stand next to one another on our own square meter, how large would that area have to be? Is North America big enough?
