Crossposted at Dailykos.com Well, this will conclude the series. I appreciate all of the comments, and have tried to adapt this series to respond to them, including more links and pictures. Some of them are interesting, and some just help make the point. Unfortunately I was unable to embed any this time for reasons beyond [...]
Continue reading about The Electromagnetic Spectrum X – The Gamma
Crossposted at Dailykos.com. he end of the 19th Century and the beginning of the 20th were heady times in physics. Within a month of Wilhelm Konrad von Roentgen’s publication of the discovery of X-rays, Henri Becquerel announced the discovery of natural radiation from uranium ore. Things were beginning to move quickly. X-rays are generally agreed [...]
Continue reading about The Electromagnetic Spectrum IX – X-Rays
Crossposted at DailyKos.com. Last time we beat the visible to death (thanks to the Rescue Rangers for listing), and are now ready to move on to the next higher energy region, the ultraviolet. It is called that because it is above (ultra) the violet in frequency, and thus has a shorter wavelength. UV is an [...]
Continue reading about The Electromagnetic Spectrum VIII – The Ultraviolet
Crossposted at DailyKos.com. We talked a bit about how visible light is generated and propagates last time, but this time I want to focus on the phenomenon of human vision. This a obviously a narrow sliver of a large topic, but is so significant that it should be discussed. Vision in general is the interaction [...]
Continue reading about The Electromagnetic Spectrum VI – Visible Light Part 2
Obviously, it is not possible to touch every item that this vast subject holds, and I depend on readers to open up more frontiers. We barely scratched the surface about microwaves, but have to move to more energetic bands. The infrared band lies just above the microwave, and just below the visible. Issac Newton discovered [...]
Continue reading about The Electromagnetic Spectrum IV – Shorter Lambda than Microwaves