Almost 8,500 objects have been orbited since 1957. These include 75 satellites for the GPS network, the international space station ISS, space telescopes and satellites from private companies. Since it is still comparatively expensive to bring a satellite into earth orbit at a price of around half a million euros […]
Science
111 posts
Smelling is an ability that is often overlooked in everyday-life. Smell can tell you when Dinner is ready, or bring you back to to a particular memory in your mind. But how do we extract those information out of seemingly thin air? Before we can delve deeper into that we […]
We all know the tides from our own experience: ebb and flow alternate and ensure that the sea is sometimes very close, then again far away. A landscape that we call the Wadden Sea is created on a flat coast. Many children have heard that the ebb and flow of […]
If you look from the earth up into the sky, it appears to be blue when there is good weather. But have you ever wondered why that is actually the case? To understand why the sky is blue, you have to know first, that the entire earth is surrounded by […]
In Books, Comics and Films zombies are often used to shock and scare the readers and viewers. The thought of a creature that absolutely lost its free will and now is completely under the cruel control of a virus or parasite scares many people. What you would think is just […]
Maybe you have seen this before, when you were helping in the garden by removing weeds. Some plants have weird looking roots, they almost look like someone tied some knots into them and in a way this is true. There are do called nodule bacteria or rhizobia living in the […]
The answer is yes! Trees, like any other living beings on this planet consist of cells. When these behave weirdly and start growing abnormally, this is considered as cancer, a disease which can thus effect not only humans and animals, but also plants. In case of trees it happens quite […]
Maybe you already saw this phenomenon and you were wondering what exactly was going on: several caterpillars line up and walk around following each other. The animals you might have seen are the larvae of moths, like for example of the pine processionary. After spending the winter in tent like […]
The golden ratio also known as the golden number and the divine proportion is symbolized with the Greek letter φ. It can be found in a lot of different domains like mathematics, nature, astrology, architecture… Mathematically, two quantities a and b, with a>b>0, are in the golden ratio if they […]
You know that moment when you’re cooking and then your eyes get itchy and tears are running down your face all of a sudden? No, I’m not talking of one of your existential crisis but actually of when you start cutting onions. Just like other plants would have thorns, onions […]