I didn’t realize the mass fractions were that low. Is that correct?? | Hacker News

Hacker Newsnew | past | comments | ask | show | jobs | submit

		bilsbie 4 months ago \| parent \| context \| favorite \| on: Overcoming barriers of hydrogen storage with a low... I didn’t realize the mass fractions were that low. Is that correct??

philipkglass 4 months ago [–]

Yes, because hydrogen atoms are so light. It takes 12 hydrogen atoms to equal the mass of a carbon atom and 16 hydrogen atoms to equal the mass of an oxygen atom.

bilsbie 4 months ago | [–]

It’s a surprisingly good rocket fuel to be mostly carbon then.

Guidelines | FAQ | Lists | API | Security | Legal | Apply to YC | Contact