Corrections
Published · Updated · Checked
When a figure, formula or other fact turns out to be wrong, we fix the page, update its checked date and record the change here.
Log
Nothing has needed correcting since launch; the log is empty because no published fact has changed, not because it is hidden. Every page is re-read against its sources at least once a year, and any change to a fact is recorded here.
Report an error
Send the page address and your source through the contact page.