Kategorie: Bierdeckel
Bierdeckel Pint of Science
Luminous gin and tonic
UV light, which also causes sunburn in summer, provides enough energy to stimulate the quinine molecule. This is what gives the tonic water its bluish glow when exposed to UV light. In this case, we understand excitation to mean that an electron of the molecule…
Bierdeckel
Gin and tonic from a chemistry perspective
Gin is a spirit made from juniper. The name probably goes back to the French name of juniper, genévrier. Today, gin – like many other spirits – is mainly produced by using or combining three different processes (maceration, percolation and distillation). Maceration (also cold extraction)…
Bierdeckel
Dry and wet foam
Wet and dry soap foam are different. Wet foam is made up of tightly packed round bubbles that barely touch. The layer of water between the bubbles is clearly visible. However, due to gravity, this water drains downwards. In addition, the pressure of the large…
Bierdeckel
Beer Foam
You’ve probably already noticed that the beer foam is different for different types of beer. Some form a huge head of foam, while others show almost nothing. Try timelapse video to see how well you can judge different types of beer! So why do beer…
Bierdeckel
Nasser und trockener Schaum
Nasser und trockener Seifenschaum unterscheidet sich. Nasser Schaum besteht aus dicht gepackten runden Blasen besteht, die sich knapp berühren. Deutlich erkennbar ist die Wasserschicht zwischen den Blasen. Aufgrund der Schwerkraft fließt dieses Wasser jedoch nach unten ab. Zusätzlich sorgt der Druck der großen Blasen dafür,…
Bierdeckel Pint of Science
Bubbles
Do an experiment! Put a sip of your beer in a small mug. Put this on a saucer. Now sprinkle salt in the small beer glass with the salt shaker at the table. If you don’t want to do the experiment yourself, you can also…
Bierdeckel Pint of Science
Leuchtender Gin Tonic
UV-Licht, das uns auch im Sommer den Sonnenbrand verschafft, liefert genug Energie, um das Chinin-Molekül anzuregen. Dies sorgt für das bläuliche Leuchten des Tonic-Waters wenn man es mit UV-Licht beleuchtet. Wie das Leuchten entsteht Unter Anregung verstehen wir in diesem Fall, dass ein Elektron des Moleküls…