I am no expert, but isn't that an image of something which does not exist? The light took millions of years to come to the lens. It should be called astro-archeology.
Visible light range, of course 🙂
What our detectors are tuned to. 😱
You mean .... those round Earth pictures are actually fake?
I suspected as much ... otherwise Oceans would dry in hours with water running to the lower side of the Earth.
You might say: and how do you know you are on the "up" side?
Easy peasy.
Not 1 but TWO ways to prove it:
1) I grab an apple, put it 1 foot before my eyes,let it free ... it falls straight down, near my feet tips.
Scientifically backed by none other than Newton, go figure.
2) am I walking on my head? ... or on my feet? 🙄
Sheesh! .... there´s people who will never understand True Science like I do.
IF = intermediate frequency. Perhaps save the sarcasm for after you've reviewed how superheterodyne receivers work.
Tom
"Sarcasm???" 😱
You kidding?
OF COURSE I know how superheterodynes work, hence my answer.
Invisible light which has a frequency invisible to us (hint: our chemical detectors do not catch it) beaten with an appropriate frequency (by what means , I don´t know or care, I am talking about the Physical principle used) so the difference falls within our visible range (hint:where our detectors are tuned).
You see any flaw in my reasoning?
Where do you find "sarcasm"?
Sheesh!!!!
PS: been building superheterodyne receivers since I was about 13 ... do the Math.
What I'm curious about is what the intermediate frequency or the local oscillator frequency is. Knowing those would give me insight into the IF section, which is what I was curious about. I know what the output frequency is. I already know how our rods, cones, and intrinsically photosensitive retinal ganglion cells (iPRGCs) work.
I was tinkering with superheterodyne receivers and programming PLLs around the same age as you. You're not the only one here who has a lifetime of experience.
Tom
I was tinkering with superheterodyne receivers and programming PLLs around the same age as you. You're not the only one here who has a lifetime of experience.
Tom
The place the apple arrives may not be exactly where you'd expect, because the Earth is spinning underneath it as it falls.
The deviation in your case is too small to notice, but military snipers may have to consider the Coriolis effect because sniper targeting has to be so precise.
Definitely!!!
I mainly hang around here to learn; obviously from experienced and knowledgeable Forum Members of which there are quite a few.
If besides that I can try to help somebody, so be it, giving back a little.
Ugh!!!!
Small World: just on last Friday I watched (for the second time) "Mif", an Ukrainian movie about the tragic life of a famous Opera singer, who volunteered as a soldier and was killed by a sniper 🙁
I mainly hang around here to learn; obviously from experienced and knowledgeable Forum Members of which there are quite a few.
If besides that I can try to help somebody, so be it, giving back a little.
Yes, up to 800 meters, with exceptional 1000meter shots.
Ugh!!!!
Small World: just on last Friday I watched (for the second time) "Mif", an Ukrainian movie about the tragic life of a famous Opera singer, who volunteered as a soldier and was killed by a sniper 🙁
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Of course Einstein showed that the apple actually warps space time. Which does not fit what our eyes see. And for most of us Newtonian mechanics holds or our poor little brains would explode.
You can see gravitational lensing effect.
https://hubblesite.org/contents/articles/gravitational-lensing
https://hubblesite.org/contents/articles/gravitational-lensing