The pineal gland regulates the body’s day-night rhythm through melatonin release. So when it gets dark and hardly any light reaches the eyes, it releases melatonin. Higher melatonin levels make us tired. Authors: 3sat/NANO/Logo (Marco Polo Film AG)/S. van Iersel, T. Visser, A. Scheurich/ Armin Rieg
The I-effect is explained using the example of carboxylic acids. Why can some acids release their proton more easily than others? Original: "Wolfgang Dukorn" Original: German. All translations in this video have been done by the alugha AI.
Why does phenol react as an acid (proton donor) even though it does not have a carboxy group? The screencast shows and explains the different mesomeries of the phenol molecule and phenolate ion. Original: "Wolfgang Dukorn" Original: German. All translations in this video have been done by the alu
Find out what quarks are, how they were discovered and why they are very important in relation to protons and neutrons. There are different types of quarks which you'll learn about in this GCSE / K12 "Radioactivity" video from the Virtual School. Click here to see more videos: https://alugha.com/Fu
Part 3 on acid-base titrations. Explanation of the indicator GGW and the calculation of the turnover area Original: "Wolfgang Dukorn" Original: German. All translations in this video have been done by the alugha AI.
In this part 2, learn the basics about the atom, particularly about isotopes, whilst learning about properties of matter. Learn the basics about the atom, whilst learning about properties of matter. Atoms are the small bits that make up all the matter in the world around us. There are around one
A constant fire burns in the Sun, powered by nuclear fusion. In this process, light atomic nuclei fuse to form heavier chemical elements. This process releases an enormous amount of energy. Authors: ZDF/Terra X plus/Bilderfest/Nina Beier/Benjamin Herzberger/Fabian Brokmeier/ Phillip Becker/Maximili
Acid and base definitions according to Brönsted are explained. At the end, protolysis reactions are described. Original: "Wolfgang Dukorn" Original: German. All translations in this video have been done by the alugha AI.
Why do carboxylic acids react as acids, but alcohols do not? Original: "Wolfgang Dukorn" Original: German. All translations in this video have been done by the alugha AI.
This screencast shows that the voltage series is not limited to metals. Oak non-metals and non-metal ions can absorb or release electrons. Original: "Wolfgang Dukorn" Original: German. All translations in this video have been done by the alugha AI.
Different isotopes of the elements can exist. These have a different mass number, but identical proton number. This is explained in the screencast and discussed again at the end using the example of hydrogen. Original: "Wolfgang Dukorn" Original: German. All translations in this video have been do
Rutherford's atomic model can already explain a simple formation of charged particles (ions). The PSE can help us detect whether an atom absorbs or releases electrons. Original: "Wolfgang Dukorn" Original: German. All translations in this video have been done by the alugha AI.
