Hydrogen and Cryogenics 101

Here’s a paradox of paramount importance: which paradigm is right — parahydrogen or para-hydrogen?

Should a hyphen (-) be used to describe this paranormal spin-isomer of hydrogen with ‘parallel’ nuclear … » More …

Hydrogen is the simplest atom or molecule; comprising 75% of the known mass of the universe. No atom or molecule has a more fundamental role. So to compliment our post … » More …

When I tell people I work … » More …

Two ways to color sort hydrogen have become popular. Although this post was originally developed with the physical colors that hydrogen fluoresces in mind, the community has since developed a … » More …

The focus of my current research is looking at the possibility of using a vortex tube for efficient cooling of low temperature hydrogen. Our first commercial vortex tubes [1] to … » More …