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Janet W

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Janet W last won the day on October 23 2019

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  1. Well, well, well. What do you know? @ Yasmina "So two people who work for two different airlines would make up that all London and Manchester airports will be closed from Friday? This isn't a made up story. What good does that do? It makes no sense. I was supposed to be flying out on Friday, and I've now had to change my plans and fly out tomorrow which is a HUGE inconvenience." Probably need some better sources in future. Looks like you were inconvenienced for nothing by another made-up story. We're supposed to be distrustful of MSM (and for good reason) but many of us seem
  2. Yes. If you look back in this forum and its predecessor, members have been saying this for years and years. It's just some of us expressing our insecurities. I have it but just put it down to one of my minor neuroses! Surely we can find a forum member from the UK travel industry or who works at an airport who can supply some fact-based info? When Friday comes and goes without airport closures, will the purveyor of this story fess up? Have a guess...
  3. Well, no October surprise after all. Who started the story anyway?
  4. Yes, corona discharge is a real thing. It's voltage related not frequency related. You can create your own corona with a cheap toy Tesla coil. Nothing to do with 5G or corona virus - ask an RF engineer or a real doctor. They're both called 'corona' becasue of their superficial crown appearance. Corona virus is connected to corona discharge just like a butter cup is connected top a butter knife! I don't think there's much need to heed what the Dr writes because if you Google Dr Robert O Young (author of the piece) he has an interesting history: Just from Wikipedia - which
  5. No comet or asteroid in site. What else might it be? Maybe a masive earthquake? Two days left. If nothing happens will the propagators of this story fess up and apologise or just wriggle, point to something relatively minor and claim it was that?
  6. I doubt it's a weather balloon, and I didn't suggest it was. I think it might be a solar balloon. They are just fun things to play with and as far as I know have no purpose other than toys.
  7. Thanks for the helpful suggestion. Stiff balloon in a thermal, secret terrestrial technology or an alien probe. Let me think about that...
  8. Happy to help, but it's only a suggestion. Solar balloons can be quite big and can flex about and get caught in swiftly moving thermals. They are just filled with air that expands with heat from the sun, and your video looks typical of the warm sunny conditions required for them. I'm surprised no one has pointed out they are usually dark so as to absorb the sun's heat, but maybe that only applies to DIY ones made out of bin liners and commercial ones can be made that absorb much of the sub's heat but are still quite reflective to visible light. Janet
  9. Thanks. A decent bit of video. I suspect its a metallised mylar solar balloon caught in a thermal.
  10. The Pokemon effects were real but due to programme content, and not the deliberate selection of TV frame/field rates. Programme makers are normally aware of the problems caused by flickering images. That's why a warning (in the UK at least) is often given before clips contain lots of photo flashes. So yes, mass-induced fitting could theoretically be induced by flicker rates below frame rates (the exact susceptibility rates vary, but 10 to 20 Hz is most common), but if The Evil Powers That Be got into the TV transmission system it wouldn't affect all viewers anyway. And they'd also
  11. LEDs if driven from a pulsed supply should have capacitors across them to eliminate (or at least reduce) flicker. But they are often omitted on cost grounds, and if the frequency is high enough no one will notice whether or not capacitors are used. The frequency of flicker on TV is directly related to mains frequency and anyone knowing about TV transmission systems will know all about frame rates and varying mains frequency if they're not locked. Although this was the case for analogue TV, they're maintained with digital systems, although can be multiples; 100 Hz, 120 Hz, etc.
  12. @oz93666 Itsjay is correct. LEDs are usually driven by DC pulses even when powered by a DC supply. You can often see this in some car rear lights from a 12V supply and car battery. It's all related to efficiency and is especially useful in torches and cycle lamps to keep the brightness constant as the battery voltage falls. But I guess all those claiming flicker is damaging are happy to sit in front of a flickering computer screen even if it's not consciously perceived...
  13. Old fashioned incandescent bulbs still flash at twice mains frequency. Thermal inertia makes it not quite so noticeable. Time now for someone to wade into the thread and tell us all that the mains frequency - and subsequently TV frame rates - were decided as best for mind control (they're not) in some Deep Illuminati Plot, rather than having any grasp of power engineering or an understanding of persistence of vision...)
  14. It might be an artefact related to the mains frequency (50 Hz Europe, Australasia and Asia, 60 Hz most of the Americas) and the video frame speed. This is a well-known problem in video production.
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