Here we look at how the combustion of hydrogen gas can lead to a chain reaction. On the face of it, the chemical reactions that take place in the combustion of hydrogen are relatively simple ...

It displays a huge geographic, ecological, economic, cultural, and linguistic range today, from the steppe zone in the north, the Caucasus mountains in the center, to the highlands of today’s ...

The newcomers brought ancestry from nomadic groups originating on the Pontic Steppe, a grassland region extending from Ukraine to Kazakhstan. These nomads moved west during the Neolithic ...

and sheep and cattle farmers from the Pontic Steppe, a region that spans Eastern Europe and central Asia, around 5,000 years ago. In all, the researchers compared the genomes of 1,750 ancient ...

Polymerase chain reaction, or PCR, is a laboratory technique used to make multiple copies of a segment of DNA. PCR is very precise and can be used to amplify, or copy, a specific DNA target from a ...

Chain gangs developed as a popular solution to that problem. Chain gangs were groups of convicts forced to labor at tasks such as road construction, ditch digging, or farming while chained together.

During the following 5th and 4th millennium BC, Eneolithic cultures emerged in the river valleys of the North-Pontic steppe and became archaeologically visible as they built characteristic earthen ...

But all domestic horses come from the Pontic-Caspian Steppe of Bulgaria, Ukraine, and Russia in the third millennium. Now researchers have pinpointed exactly when this horse took over and the Age ...

The volume explores the rise of the world's first pastoral nomads the Yamnaya Culture in the Russian Pontic steppe including their social organization, expansions, and the transition from nomadism to ...

A new technique, based on a chain reaction of recognition and hybridization events between two sets of DNA hairpin molecules, offers an enzyme-free alternative for the rapid detection of specific ...

Ongoing supply chain transformation is likely to deepen, driven by intensifying geopolitical rivalries, emerging new technologies, concerns over supply chain resilience, and the search for ...