From Wikipedia: The ångström or angstrom (symbol Å) (pronounced /ˈɔːŋstrəm/; Swedish: IPA: [ˈɔŋstrˈøm]) is an internationally recognized unit of length equal to 0.1 nanometre or 1 × 10−10 metres. It is named after Anders Jonas Ångström. Although accepted for use, it is not formally defined within the International System of Units (SI).

We hope you find this as useless as we do. Welcome Angstrom aboard!