Kathy Loves Physics & History | How Does A Battery Work? Simple & Fun Explanation for Adults (& Smart Kids) @Kathy_Loves_Physics | Uploaded 6 years ago | Updated 11 hours ago
How does a battery work? In this fun & simple video learn what current really is, why some materials conduct and some don't, the importance of "free electrons" and positive ions and how every electrician and science teacher in the world is lying!
Check it out!
How does a battery work? In this fun & simple video learn what current really is, why some materials conduct and some don't, the importance of "free electrons" and positive ions and how every electrician and science teacher in the world is lying!
Check it out!
![Joseph Fraunhofer Biography: The Father of Modern Astronomy [CC]](https://i.ytimg.com/vi/d0cjG1UdqKo/hqdefault.jpg "Joseph Fraunhofer Biography: The Father of Modern Astronomy [CC]
How did Joseph Fraunhofer, a poor glassmaker, get saved from poverty by a prince and then discover spectroscopy (Fraunhofer lines), single slit diffraction AND the diffraction grating? I use primary sources to discover the background and the physics of this epoch making discovery.
Links:
My Patreon Page:
https://www.patreon.com/user?u=15291200
The music is from the fabulous Kim Nalley and find her at kimnalley.com
Fraunhofers work is translated and found in Prismatic and Diffraction Spectra, Memoirs (1899)
The date of the accident and the death of his family members is from Memoir of the life of Joseph Fraunhofer found in The Franklin Institute Journal of the Franklin Institute Vol. 8 (1829) Elsevier p. 97
Wollaston, W A Method of examining refractive and dispersive Powers, by prismatic Reflection (June 24, 1802) Phil. Trans. R. Soc. Vol. 92 p. 378
Also, check out:
Jackson, Myles Spectrum of Belief (2000) p. 1-5
King, H The History of the Telescope (2003) p. 177-8
Band, J. C. D. Lines of Light (2017)")
