Theo Nicolakis / IDG Periodic Audio’s Nickel amplifier is about the size of a 9-volt battery, shown here with an iPhone XS and Beyerdynamic Amiron Home headphones. The Nickel is simple to use ...

New applications often require new materials. Quite often, materials are needed that do not occur naturally or have very ...

Image Credit: Virrage Images/Shutterstock.comLithium-ion batteries (LIBs) researchers from the South China University of Technology have briefed the latest progress in surface modification of ...

Then along came Rutherford, Bohr, and Moseley, in the years 1911–1914, and scientists found that the place of an element on the periodic table (atomic number) was not just a voodoo hack-up, like ...

Periodic Audio Nickel Amplifier The Nickel offers 250 mW – a quarter of a watt – per channel into 32 ohms. Nearly double that into 16 or 8 ohms, which is more than enough power for just about any ...

The nickel-56 is also unstable, decaying to cobalt-56, which then decays to iron-56, and is how we arrive at the periodic table's most stable element. And zinc-60 decays first to copper-60, which ...

The periodic table is an icon. But chemists still can’t agree on how to arrange it New data about the elements and their relationships have led to debate over the 150-year-old table’s optimum ...

Mendeleev’s periodic table, published in 1869, was a vertical chart that organized 63 known elements by atomic weight. This arrangement placed elements with similar properties into horizontal rows.

Why has the periodic table endured for 150 years? It’s an amazing tool that can compress a huge amount of information into one format. It’s one of the first things people learn about chemistry.

The periodic table currently has 118 chemical elements (SN: 11/30/16). The five heaviest elements were all produced using a beam of calcium-48. That’s a variety, or isotope, of calcium with 28 ...