SDO caught a minor flare and a coronal mass ejection (CME) in profile as they blasted out from the Sun, producing a prominence that rose up and out in a curving arch (Sept. 8, 2010). The particle cloud was not aimed at Earth, so it could not produce geomagnetic effects on Earth. The stills show the arch in a wavelength of extreme ultraviolet (UV) light. The movie combines three wavelengths of extreme UV light and covers three hours of activity. http://prop.hfradio.org/ Source: NASA/SDO/AIA/HMI ... https://www.youtube.com/watch?v=IfKP5sw4ItQ

Here are my answers to the email I received from WO9B, regarding the video, https://youtu.be/DHj917E1bKA (in which I share the information about my SDRplay RSPdx radio receiver and SDR-Console). Thank you, Michael, for asking these questions. The two questions are summed up as: 1. Your SDR window has the IF screen on top. How is that accomplished? 2. Your AM Broadcast filters; more info, please. I live in the area of mucho broadcast stations and that looks like something I could use. In this video, I demonstrate how I changed my layout of the SDR Console. And, I mention the AM Broadcast Filter for SDR Receivers: https://g.nw7us.us/3kU5SJN 73 de NW7US -=-=-=-=- Thank you for watching, commenting, and most of all, for subscribing. Please subscribe to my YouTube Channel: https://YouTube.com/NW7US Also, please click on the bell, to enable alerts so that when I post a new video, you will be notified. By subscribing, you will be kept in the loop for new videos and more. About me: http://me.nw7us.us Highlights: I am a contributing editor with propagation and space weather columns in: - CQ Amateur Radio Magazine http://www.cq-amateur-radio.com/ - The Spectrum Monitor http://www.thespectrummonitor.com/ Social media: Twitter: https://Twitter.com/NW7US (@NW7US) Tumblr: http://blog.nw7us.us Instagram: https://instagram.com/nw7us Facebook: https://www.Facebook.com/NW7US Facebook: https://www.Facebook.com/spacewx.hfradio Copyright, Tomas Hood / NW7US ... https://www.youtube.com/watch?v=YLBLHi441Zg

This is the 2019 60-second video PSA offered by ARRL. Source: http://www.arrl.org/field-day -=-=-=-=- Thank you for watching, commenting, and most of all, for subscribing. Please subscribe to my YouTube Channel: https://YouTube.com/NW7US Also, please click on the bell, to enable alerts so that when I post a new video, you will be notified. By subscribing, you will be kept in the loop for new videos and more. About me: http://me.nw7us.us Highlights: I am a contributing editor with propagation and space weather columns in: - CQ Amateur Radio Magazine http://www.cq-amateur-radio.com/ - The Spectrum Monitor http://www.thespectrummonitor.com/ Social media: Twitter: https://Twitter.com/NW7US (@NW7US) Tumblr: http://blog.nw7us.us Instagram: https://instagram.com/nw7us Facebook: https://www.Facebook.com/NW7US Facebook: https://www.Facebook.com/spacewx.hfradio ... https://www.youtube.com/watch?v=pa9DAs4go8Q

Telegram for America, by Transfilm; published circa 1956 This "documentary" (more a promotional film) celebrates the technological advances leveraged by the Western Union Telegraph Company, during the first one hundred years of their history. This black-and-white film discusses the expansion of the company, along with the United States of America, into the western part of the continent. The film touches on railroads, early hand telegraphy and telegraph keys, 1950s-vintage teletype and paper tape network technology serving all cities and towns in the United States. It documents telegraphy of service in business, to families, to government, in natural disasters (floods and fires) and in the commodities market. Even microwave is discussed, along with the "Telmobile," a mobile reception center for facsimile (fax) "telegrams" that then delivers them to customers in outlying suburban districts. This is interesting from the standpoint of how the invention of Samuel F. B. Morse and team made the United States of America a distinct leader in technology, because of American Morse code and the networking such technology made possible. And, then, how technology increased and morphed. Teletype is looked at, then the fax technology. This film is part of the Prelnger Archives. I have made video and sound edits and processing to master it into this format. I can only do so much to try and improve the picture and sound. I hope this version is enjoyable, if not just interesting to history buffs and communications, technology, and modernization enthusiasts. Thank you for watching, commenting, and most of all, for subscribing. By subscribing, you will be kept in the loop for new videos and more... my YouTube Channel: https://YouTube.com/NW7US -- Tomas, Amateur radio guy and space weather guru; NW7US -- Home page: http://NW7US.us/ and http://SunSpotWatch.com -- Contributing editor, propagation and space weather monthly columns in the following two magazines: + "CQ Amateur Radio Magazine", http://www.cq-amateur-radio.com/ + "The Spectrum Monitor" http://www.thespectrummonitor.com/ -- Twitter: https://Twitter.com/NW7US (@NW7US) -- Tumblr: http://blog.nw7us.us -- Google+ http://nw7us.us/+ -- Instagram: https://instagram.com/nw7us Linux User #32405 - Since 1996 ... https://www.youtube.com/watch?v=0stgxiPzxwo