IT/Technology

Reliance on glass fiber

Millions of arithmetic processes can be replaced by a single straightforward fiber. The novel experiment demonstrates optical computers' promise for the future.

Accessible to everyone?

Software is currently primarily built on publicly accessible programs whose source code can be viewed by anyone. There are some benefits to this, but the most recent weakness should serve as a warning.

Only electric trucks have the right carbon footprint

Even in the current, non -climate -friendly power grid, battery -operated trucks alternative drive forms.According to a study, they save over 60 percent greenhouse gases.

A repository for greenhouse gas

The storage of carbon dioxide deep in the earth (CCS) has long been considered "dead" in Germany. Now the federal government is daring a new attempt and wants to use the procedure. An overview of the technology, its opportunities and limitations.

Start of the moon mission is delayed by weeks

The second attempt to send the NASA rocket to the moon has also failed. The reason is a fuel leak. A new attempt should be made no earlier than October 2022.

Cool inside, hot outside

Lift ventilation at night and put the pajamas in the fridge? Many are not enough. The number of air conditioners in private households increases. But the air conditioning technology further heats up the planet. Researchers are looking for solutions.

The Nobel Prize in Economics goes to three US economists

The annual conclusion of the Nobel Prize announcements is the Nobel Prize in Economics. Three US economists are being honoured for their research on banks and financial crises.

What complicates the reserve operation of nuclear power plants

In the event of an emergency, Isar-2 and Neckarwestheim II are to supply electricity until spring. But this is not possible with the old fuel elements – and now there is also a valve leak.

Green hydrogen from the air

Climate-friendly hydrogen is to replace oil as the universal fuel of industry. But in areas where the sun shines a lot, there is usually little water. What to do?

Increased metal concentrations around wind turbines in the North Sea

The metals probably come from the corrosion protection of the systems, which dissolves over time. So far, no effects on the environment are known.

Read WhatsApp and Co again soon?

With new digital laws, the EU wants to limit the power of large corporations and better protect children and young people. But above all, the "chat control" meets with criticism: The expectations of the technology are too unrealistic, too strong the collision with data protection.

How to teach wind turbines swimming

60 meters - the water must not be deeper to set up an offshore wind turbine. Now floating wind turbines are to open up previously inaccessible sea areas. But the technology is still in its infancy.

The right equation will help protect squirrels

Squirrels are great animals. There is hardly anything more relaxed than watching them around on a tree or nibbling a nut. But if you want to get biodiversity, it is worth taking a look at mathematics. Because the squirrelpox is rampant among them!

The perfect domino effect

When one of a series of dominoes falls over, a chain reaction often occurs. How fast it runs and whether it works without interruption depends on several parameters: the distance of the stones, the friction between them and the interaction with the substrate.

"The idea of a double sexuality is refuted"

Do women like masculine types more on their fertile days? A myth, says psychologist Lars Penke from the University of Göttingen in an interview. »The cycle does something to women psychologically, but not as expected.«

A touch of wormhole

Theoretical models try to unite the two great physical natural theories. They link structures in space -time with quantum mechanically entangled particles. Such a connection was simulated with a quantum computer, but massively simplified.

The universe, the Earth and all the rest

The geoscientist Christian Klepp traces the history of the earth in a book written with a lot of love for his subject. The content is not new, but the spark of enthusiasm for the knowledge of textbooks jumps over thanks to the successful narrative structure and excellent nature photography.

Ice-cold steel balls create new kind of ice

Water is known to be a mysterious substance with partly idiosyncratic properties. Amorphous ice cream medium density adds one more.

Understand stars with perforated cards

Stars are just, at first glance, boring, hot gas balls: to understand their structure and development, it took a computer. Even if they filled an entire room at the beginning and were fed with punched cards.

Babies pedal sensibly

Seemingly random kicking makes babies learn movements. It already links perception and muscle activity in the early stages of development for later coordinated movements.

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