Quantum theory needs complex numbers

Physicists construct theories to describe nature. Let us explain it through an analogy with something that we can do in our everyday life, like going on a hike in the mountains. To avoid getting lost, we generally use a map. ...

Challenging the big bang puzzle of heavy elements

It has long been theorized that hydrogen, helium, and lithium were the only chemical elements in existence during the Big Bang when the universe formed, and that supernova explosions, stars exploding at the end of their lifetime, ...

Insects in the light of land use and climate

Worldwide, scientists have reported mounting evidence that the quantity and diversity of insects are declining; in politics and society, these findings have raised great concern.

Grabbing magic tin by the tail

Atomic nuclei have only two ingredients, protons and neutrons, but the relative number of these ingredients makes a radical difference in their properties. Certain configurations of protons and neutrons, with "magic numbers" ...

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