Saradina-Info-Blog
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#Resource #conservation - #fur instead of #clothing?
saradina-info-blog on 08.02.2026 um 08:56 (UTC) |
| | Clothing production consumes vast amounts of resources. Drinking water, in particular, is consumed in enormous quantities.
Furthermore, the ever-increasing number of clothing styles created by fashion companies is becoming a form of social dictate and a label for income groups.
How practical would it be if humans had fur as beautiful and functional as, for example, a cat's?
Large amounts of environmental pollution and financial stigmatization would be eliminated.
Wouldn't that be an interesting field for future genetic research?
However, in such a genetic engineering project, it is essential to ensure that no atavism occurs.
That is, the genetic modification must not lead to the activation of genes that originate from a distant stage of human evolutionary history, such as those of an ancient hominid.
If these things are taken into account, it is certainly a worthwhile project for genetic engineering. | | | |
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#Electric cars - #batteries are far too heavy
saradina-info-blog on 04.02.2026 um 09:12 (UTC) |
| | People are constantly being pressured to buy an electric car. Electric cars are supposed to help save the climate, among other things.
But how ready are these designs for everyday use?
A major weakness is the batteries.
Apart from the fact that the raw materials for the batteries are sometimes extracted under very peculiar conditions, the batteries are simply too heavy and too large.
The huge batteries increase the car's size without adding any storage space.
Furthermore, electric cars take up a lot of space on the roads due to their batteries.
But the biggest problem is the extremely high weight.
Because of the high weight, a large portion of the energy supplied by the batteries is used simply for transporting them. That's not economical.
Furthermore, the heavy electric cars cause a great deal of abrasion on the roads, thus accelerating their wear and tear.
From this perspective, electric cars appear to be technically immature.
The most important goal for the future is to invent significantly smaller and more powerful batteries.
To this end, collaborative research across borders is essential, as the invention and production of these new and improved batteries will represent major global progress—for the environment as well as for the economy.
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#Shepherds, #lambs and #sheep
saradina-info-blog on 18.01.2026 um 09:01 (UTC) |
| | You often hear young people say they can't know this or that because it's "before their time."
This statement is often not without a touch of coquetry, since youth is a kind of modern-day badge of nobility—albeit a fleeting one.
Older people usually react with understanding, not without a certain reverence for the young life that has only existed for such a short time and therefore certainly doesn't need to know what happened before their own. These young people see themselves as lambs, pure and spotless, and free from all the vices of the past.
But as with every beautiful apple, there's a worm in it.
Aren't these young people like the lambs in a flock?
How glad the shepherd must be that today's lambs don't know that yesterday's sheep were sold to the butcher! | | | |
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#Melatonin - a fountain of #youth?
saradina-info-blog on 10.01.2026 um 21:59 (UTC) |
| | A long life. Many dream of it. But what good is a long lifespan if health and physical youth quickly fade?
There is an interesting clue from vegetable research on this topic.
Researchers injected melatonin into the stalk of an Asian cabbage variety.
This helped the cabbage stay fresh and last longer, much to the delight of greengrocers.
This effect was explained by the fact that melatonin slows down the metabolism and thus delays aging processes, so that the cabbage stays fresh and has a longer shelf life and can therefore be sold for a longer period.
Melatonin is a substance that also has an effect on humans.
This raises the question of whether regular melatonin supplementation also helps people stay fresh and vibrant for longer.
This is particularly interesting considering that melatonin production decreases, especially in older people. | | | |
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#Human #hair - a unique feature in #biology
saradina-info-blog on 29.12.2025 um 09:54 (UTC) |
| | People see it as part of everyday life, a piece of daily routine.
Styling, cutting, and growing hair. Human hair is almost infinitely malleable.
The growth of human hair, especially head hair, is a uniquely human characteristic.
It can be cut very short and then grown back up to hip length. A similar pattern seems to apply to beard hair.
This is unique in the animal kingdom. There are animals with short fur (mostly in warmer regions) and animals with long and thick fur (mostly in colder regions).
Animals with short fur will never have long hair; a leopard doesn't need to go to the hairdresser.
On the other hand, one could cut a lion's mane short (if he would tolerate it), but after the haircut, the fur would grow back to its original length.
Hair growth in animals appears to be considerably more limited than hair growth in humans.
Only human hair has the ability to reach such an extreme length.
Thus, the length of human hair would be one of the unique biological characteristics, like, for example, walking upright.
Since the possibility of relatively extreme length growth of human hair is so unique on the one hand, and on the other hand offers no survival advantage in the wild, the question arises whether the relatively extreme length growth of hair is a biological trait that arose when humans diverged from other highly developed primates in the course of evolution? | | | |
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#Advent Season - a #cultural #world
saradina-info-blog on 16.12.2025 um 08:59 (UTC) |
| | Lately, the use of the words Advent and Christmas is increasingly avoided during the Advent and Christmas season.
As if the terms Advent and Christmas were undesirable and unspeakable.
The process is gradual; there are no official regulations or prohibitions. But the terms Advent and Christmas are increasingly being replaced by meaningless, generic terms like "festival" or "holidays."
I too have been infected by this attitude - without thinking about what it means when terms are surreptitiously stigmatized away.
But these terms have meaning and refer to an entire cultural world. It's not simply a matter of avoiding terms – entire cultural worlds are being erased.
This shouldn't be happening.
Therefore, and in that spirit:
I wish everyone a happy Advent season. | | | |
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