Dein Suchergebnis zum Thema: Trainer

They grow up so fast: New observations show that massive disk galaxies formed exceptionally early in cosmic history

https://www.mpg.de/14829540/they-grow-up-so-fast-new-observations-show-that-massive-disk-galaxies-formed-exceptionally-early-in-cosmic-history

In our 13.8 billion-year-old universe, most disk galaxies like our Milky Way were thought to form gradually, reaching their large mass relatively late. But now astronomers led by Marcel Neeleman from the Max Planck Institute for Astronomy, using the ALMA observatory, have found a massive rotating disk galaxy, seen when the universe was only ten percent of its current age. The observation shows that some disk galaxies must have formed much more quickly. This supports earlier computer simulations that had indicated the role of a quick, „cold“ mode of galaxy formation. The results have been published in the journal Nature.
“Most galaxies that we find early in the universe look like train wrecks because

Solar and wind energy may stabilise the power grid

https://www.mpg.de/6351135/power-grid-regenerative-energy

A decentralized power grid with many small wind generators, solar generators and other renewable energy transducers along with additional power lines may be less vulnerable to outages than a centralized power grid with a small number of large power plants, because self-synchronization occurs in the former. This finding was made through simulations performed by the research team led by M. Timme at the Max Planck Institute for Dynamics and Self-Organisation. However, they found that it is important for grid stability that new lines are planned with care in order to avoid Braess’s Paradox.
This means that they must not be out of phase, or only by a full wave train.

Ants employ odors for orientation

https://www.mpg.de/232056/ants-orientation

The desert ant’s use of its own built-in GPS – consisting of a sun-compass-based path integration system and visual landmarks – in locating its nest is a known phenomenon. Researchers recently ascertained, however, that this system also includes a sense of smell. Even more surprising is the discovery that these animals learn to distinguish between different odors in the nest environment, and use these like a map. Markus Knaden and his team at the Max Planck Institute for Chemical Ecology in Jena set out to search for clues in ant country.
From there, she flew back to Germany, took a train from Leipzig airport to Jena and