3 ms·
Which is also mentioned in the article: "This lid was concave up like an antenna, near my face when it hit, focusing the energy into my face."
by Zitrax 9y ago
Which is also mentioned in the article: "This lid was concave up like an antenna, near my face when it hit, focusing the energy into my face."
- trott 9y agoThanks. The spherical wave assumption used in the calculation is not compatible with the focusing effect, and could be wildly wrong in this case.