SCS International is an independent educational reference, and we welcome messages from readers — especially corrections. Chemistry and physics reward precision, and if we have stated something imprecisely we would rather know. Use the form below to send a question, a suggestion, or a note about an error you have spotted.
What to Send
Helpful messages usually include the page you are writing about and, where relevant, the source that supports your point. We read everything, though we cannot promise an individual reply to every note. We are based in the United States and correspond in English.
What We Cannot Do
Because this is an educational reference rather than a business, we do not sell products, provide consulting, complete homework, or offer professional scientific advice. For authoritative technical guidance please consult the primary sources we link throughout the site, such as IUPAC for chemical nomenclature or NIST for physical constants.
Send a Message
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Corrections and Sources
We take corrections seriously and try to fix genuine errors promptly. If you can point to a primary source — a standards document, a peer-reviewed paper, a national-laboratory reference — that helps us act quickly and confidently. Suggestions for new topics are welcome too, though we cover a subject only when we can do it justice and cite it properly.
A Note on the Form
The message form above is deliberately simple: a name, an email address so we can reply if a reply is warranted, an optional topic to help us route your note, and the message itself. We ask for nothing more, and we use what you send only to answer you. There is no newsletter to join, no account to create, and no marketing attached. If you would rather not use a form at all, a note that clearly identifies the page and the issue is always enough for us to work from. Whichever way you write, thank you for helping to keep an educational reference accurate — careful readers are exactly the audience this site is built for, and their corrections are the quickest route to a better page.