How on earth can they be so exact on the date of the 1859 or 1889 flare. They say the flare lasted five minutes and allegedly the individual watched it the whole time or at least it was implied and that I do believe for that period in time was impossible because they had no filters. Had it be an unprotected eye he would have been blind NO?. Just more scientific mumble jumbo if you ask me. Lets keep all those sheeple scared and all that jazz
I’m sure astronomers were observing and cataloguing sunspots long before this flare occurred. You can’t do that by staring directly at the sun (with or without a telescope) without going blind, so they must have used filters or projected the sun’s image onto some kind of screen.
They used projected images. A simple pinhole will do.
How to watch without going blind. Simple, smoke up a piece of glass with a candle and look through the smoked glass. I have done this myself. Saw a solar eclipse some years back using this method. Also, the year is 1989, not 1889, and scientists now have much better methods than they did 150 years ago.