An unusual VLF signature structure recorded by the DEMETER satellite

first_imgA type of electromagnetic phenomenon has been found in the electric VLF data measured by the low Earth orbit DEMETER satellite, which was nonidentified earlier as a different class of electromagnetic VLF events. The phenomenon, termed as “swallow-tailed whistler” (STW) after its shape, seems to be similar to a whistler, but following the main trace, an additional trace appears with monotonously increasing frequency. The secondary trace, lasting less than 80 ms within the recorded 20 kHz bandwidth joins at a given Starting Furcation Frequency. In a 7 month long time interval three series of strong STWs were found in a geographically confined search zone. Further, 10 weak STW periods have been identified by a thorough review of a 2 month long recording. Several STWs were found by the investigation of randomly selected DEMETER burst VLF recording acquired globally. On the basis of comparisons with previous studies, we can exclude that this phenomenon is generated by plasma processes in the vicinity of the satellite though the formation mechanism of this (ionospheric) signal is so far unclear. It is possible that this event type appeared in earlier records too, however, without identification.last_img read more

Michigan City Mayor apologizes for racial remark in voicemail message

first_img Pinterest Michigan City Mayor apologizes for racial remark in voicemail message Facebook By Jon Zimney – March 10, 2021 1 333 IndianaLocalNews Twitter Google+ WhatsApp Previous articleNational Weather Service making enhancements to Severe Thunderstorm WarningsNext articleAlyssa Shepherd returns to courtroom Jon ZimneyJon Zimney is the News and Programming Director for News/Talk 95.3 Michiana’s News Channel and host of the Fries With That podcast. Follow him on Twitter @jzimney. Pinterest WhatsApp Google+ Facebook Twitter (Photo supplied) The mayor of Michigan City is apologizing for his comments in a phone message to a black pastor in the LaPorte County city.Mayor Duane Parry (D) is being accused of racism after he made what many are calling racially insensitive comments during a phone message in which he thought he had already hung up the phone.The mayor was recorded saying: “They want an (expletive) audience, ya know. These black guys, they all want a (expletive) audience all the time.”“I am sorry,” Parry said in a short press conference outside city hall on Wednesday. “I realize that saying ‘I’m sorry’ is not enough. I ask for you forgiveness. But also, I ask for the opportunity to show that I am truly the mayor for all of the people in Michigan City.”The apology did not go over well with many of the city’s African-American community. Churchgoers of the pastor to which Parry’s comments were made said after the press conference that they plan to “put as much pressure as possible” on the mayor to resign.Parry is now facing a vote of no confidence from the Michigan City City Council. That vote is expected to take place at the council’s next meeting.last_img read more