Informational Site NetworkInformational Site Network
Privacy
 

   Home - Science Experiments - Things Worth Knowing - Wise Facts - Curious Facts



To Set Fire To A Combustible Body By Reflection








Place two concave mirrors at about twelve feet distance from each
other, and let the axis of each be in the same line. In the focus of
one of them place a live coal, and in the focus of the other some
gunpowder. With a pair of strong bellows keep blowing the coal, and
notwithstanding the distance between them, the powder will presently
take fire.

The mirror may be either made of glass, metal, or pasteboard gilt.





Next: To Find The Number Of Changes That May Be Rung On Twelve Bells

Previous: The Boundless Prospect



Add to Informational Site Network
Report
Privacy
ADD TO EBOOK


Viewed 1429