Every day the sun rises — nothing seems more normal to us. Unimaginable forces are at play. Without them, life would not be possible. Join us on an exciting journey to this cosmic superpower house.
When light makes aging visible
Aging is part of life. It's nothing new. But the fact that the sun not only makes us look radiant but can also noticeably age us might be a new concept for some. We are talking here about light-induced aging, also known as photoaging.
The sun warms us up. This is where IR radiation comes into play. Unlike the UV rays that we often hear about, we can feel it. This is why it is often referred to as heat radiation.
When purchasing sunscreen, most consumers look at the sun protection factor. The sensory experience likewise plays a role in whether they will buy that particular product again or not. Everyone should ask themselves the following question, too: is my sunscreen actually photostable?
Sunlight is the source of life on Earth. But it is not only the sun that is responsible for our well-being. Artificial light is also playing an increasingly important role in our everyday lives.
We will admit: it's not the biggest of target markets. Nevertheless, it's worth asking whether astronauts and space tourists also need to add sunscreen to their packing list before taking off on their missions. Let’s head off into the stratosphere and beyond.
Can you avoid Alzheimer’s by sunbathing? Sounds tempting. Actually, research suggests a connection between the vitamin D supply in our body and dementia. Reality, though, is much more complex with many speculations.
Yes, there are indoor tanning lovers. They want to get a tan without sunbathing. Yet, is artificial tanning "better“ than natural sunlight? Whoever still wants to go to a tanning booth, should still consider a few things.
The German Weather Service records the UV Index and publishes it on the web. Meteorologists also issue warnings when particularly high levels of radiation are expected.
Considering the multitude of effects caused by the light of the sun, it’s easy to realize that without the sun, life on earth wouldn’t be possible. But what would happen without the sun?
The sun is the most inhospitable and hostile place imaginable: glowing hot, deadly radiation and devouring everything that enters its realm. Nevertheless, its light is considered the source of life on earth. How does that work together?
Can you read a number with 30 zeros? It is called a quintillion. This super power plant located at the center of our solar system can impress us with many other "big numbers" that go beyond what we can even imagine. Here are some examples.
