Structural steel is a type of construction material that is made from specific grades of steel. It is manufactured in a range of industry standard cross-sectional shapes. Structural steel grades are ...

Dual combs: soliton spectrum from the spectrometer-on-a-chip. (Courtesy: Qi-Fan Yang) A new spectrometer-on-a-chip that employs two frequency combs has been unveiled by physicists at Caltech in the US ...

The composition of complex mixtures of molecules can be determined using NMR spectroscopy. Each of the thin glass tubes is filled with an extract of sea water that contains a few milligrams of ...