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Corrections, questions and corrections again — corrections are especially welcome.
What to send
If a development time is wrong, a specification is out of date, or a safety note is incomplete, send it. Corrections with a source are the most useful thing anyone can contribute to a reference like this.
Questions about the interactive tools are welcome too, particularly if something does not work on your device. Tell me the browser, the operating system and what you expected to happen.
This form is a demonstrationThis is a static site with no server-side processing. Submitting the form validates your input in the browser and tells you what would have been sent — nothing leaves your device.