Contact

联系我们

Corrections, questions and permission requests all reach the same address.

Email

Write to [email protected]. Please put the entry slug in the subject line where the message concerns a specific term, so the note can be filed against the right page.

Corrections

If a number, a symbol or a relation on any entry is wrong, say which entry and quote the sentence. Corrections are applied to both language versions in the same edit, and the entry's "Last updated" date changes with them.

Reuse

The schematic plates and the entry text are the site's own work. Ask before republishing a plate or a passage; short quotation with a link back to the entry is welcome and needs no permission.

Advertising and business

Advertising on this site is served through Google AdSense. Enquiries about sponsorship or about anything commercial should go to the same address, again with a clear subject line.

Response time

Ordinary correspondence is usually answered within a few working days. Messages that arrive as a bulk mailing or that ask for a link insertion are not answered.

本页另有中文版：/zh/contact。