Recent content by Suppaman

  1. Suppaman

    High School How to calculate size of objects in digital photo

    I am in my late 70s with health issues and Covid is around, I do spend time in my chair writing SF managing my pills and stuff. I am a retired Senior Software Quality Assurance Engineer. Before I retired I was testing time of flight mass spectrometers. Science is one of my hobbies along with...
  2. Suppaman

    High School How to calculate size of objects in digital photo

    I want a formula to calculate the size of the image on the camera sensor. This tells me how much resolution an image will have, If I know something 100 feet away will require 1000 pixels to show a face I would have to use a longer lens or move closer if the formula said I would only cover 300...
  3. Suppaman

    High School How to calculate size of objects in digital photo

    It measures the reflection time and the corner reflector gives me a better range. It works fine.
  4. Suppaman

    High School How to calculate size of objects in digital photo

    I have a laser rangefinder and a mirror that reflects it back along the same path so I can tell how far away something is. I could take an image of a postage stamp at some distance and look at it in my editor to see how many pixels it covers, But a formula must be available and I do not see how...
  5. Suppaman

    High School How to calculate size of objects in digital photo

    I do not think the pixels know how an image may be cropped. Assume the image is not cropped, same size as the sensor.
  6. Suppaman

    High School How to calculate size of objects in digital photo

    Just as an image from an orbiting camera has limits on the smallest object it can see, this is sort of the same question. I am looking for a way to tell how much detail will be available using a formula.
  7. Suppaman

    High School How to calculate size of objects in digital photo

    Assume all pixels are used. Full frame.
  8. Suppaman

    High School How to calculate size of objects in digital photo

    Please move to a better forum if available. We have two friends discussing their photography efforts. "you know that your photo of people with large one-inch square buttons on their coats will not look accurate," said Moe. "Why is that," asked Curly. Moe answered, "You have the model...
  9. Suppaman

    High School Can We Generate Detectable Gravitational Waves in a Lab?

    As it is well known that only CW can communicate when all other methods fail. When voices are a babble and the noise is painful the narrowest bandpass will help focus the mind and communication will be accomplished.
  10. Suppaman

    High School Can We Generate Detectable Gravitational Waves in a Lab?

    My thought revolves around using the current GW detectors to detect GWs we might generate on earth. I think the experiments you described were not detecting GWs, just a mass near by.
  11. Suppaman

    High School Can We Generate Detectable Gravitational Waves in a Lab?

    Morse code is no longer needed for your HAM radio license: www.arrl.org is displayed at the bottom of your post.
  12. Suppaman

    High School Can We Generate Detectable Gravitational Waves in a Lab?

    er, CW is required for life. Now, if I did move your arm I am sure it would not be detectable. My first mentor was JWC.
  13. Suppaman

    High School Can We Generate Detectable Gravitational Waves in a Lab?

    Would it be fair to say I know how to move objects by my thoughts (TK) but we do not have the ability to detect the movement?
  14. Suppaman

    High School Can We Generate Detectable Gravitational Waves in a Lab?

    Yes, that was at the source of them but not at the detection point. My question was how much energy at the point of detection.