English: An illustration of a setup using an ignition tube. The ignition tube is being heated by the Bunsen burner on the left, with the heated gas escaping from the tube to the pan via the delivery tube on top and at right.
This media file is in the public domain in the United States. This applies to U.S. works where the copyright has expired, often because its first publication occurred prior to January 1, 1931, and if not then due to lack of notice or renewal. See this page for further explanation.
United States
This image might not be in the public domain outside of the United States; this especially applies in the countries and areas that do not apply the rule of the shorter term for US works, such as Canada, Mainland China (not Hong Kong or Macao), Germany, Mexico, and Switzerland. The creator and year of publication are essential information and must be provided. See Wikipedia:Public domain and Wikipedia:Copyrights for more details.
Captions
Add a one-line explanation of what this file represents
Items portrayed in this file
depicts
copyright status
public domain
applies to jurisdiction: United States
data size
4,666 byte
height
175 pixel
width
236 pixel
media type
image/png
checksum
64514b57badde7403bf807c61456efdb8962c6fa
determination method or standard: SHA-1
File history
Click on a date/time to view the file as it appeared at that time.