How a skywriting at night is seen from 50 feet away?

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Discussion Overview

The discussion revolves around the visibility and perception of skywriting created by drones at night, specifically how it appears to a viewer positioned 50 feet away. Participants explore methods to determine the appropriate size and brightness of the writing, considering factors such as distance, height, and visibility conditions.

Discussion Character

  • Exploratory
  • Technical explanation
  • Conceptual clarification
  • Experimental/applied

Main Points Raised

  • One participant proposes using small drones to create the writing and questions how it would appear from 50 feet away, indicating that visibility depends on lighting and weather conditions.
  • Another suggests scaling down the writing with a paper model to visualize how it would look, providing an example of drawing letters at a specific height and distance from the eyes.
  • There is a repeated suggestion to experiment with sizes and adjust based on readability, noting that the height of 35 feet may be larger than necessary for visibility from 50 feet.
  • A participant mentions that the problem can be approached using similar triangles to determine the appropriate letter height for visibility.

Areas of Agreement / Disagreement

Participants generally agree on the need to experiment with sizes and visibility but do not reach a consensus on specific methods or equations to determine the optimal conditions for the skywriting.

Contextual Notes

Participants express uncertainty regarding the exact equations or models to apply, and there are limitations in the assumptions made about visibility conditions and the effects of lighting and weather.

sameev29
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Suppose there's a writing made by many small drones,each carrying a light and together making a writing.

If the writing is placed at 35 feet height from the viewer and the length is 50 feet from the viewer,how will it appear to the viewer?
Is there any equation to find this out?

I know it depends on the lights and the weather too.I want the writing to be big and bright from a distance.Also let me know if there's any easier way to do this.This is a big project for me.Any help is appreciated.
 

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I would scale it down with a paper model and see how it looks.

As an example, draw some letters on a piece of paper with height 17.5 cm and hold the paper 25 cm from your eyes.

Alternatively you could use a word processor to draw the letters on the screen and then you can change the font size to see how it looks with your eyes 25cm from the screen.
 
jedishrfu said:
I would scale it down with a paper model and see how it looks.

As an example, draw some letters on a piece of paper with height 17.5 cm and hold the paper 25 cm from your eyes.

Alternatively you could use a word processor to draw the letters on the screen and then you can change the font size to see how it looks with your eyes 25cm from the screen.

What font size should I use?
 
Experiment with the sizes and then measure them on screen. If you feel they are readable then you adjust your letter heights as needed. 35ft may be far larger than needed when viewing at 50 ft.
 
jedishrfu said:
Experiment with the sizes and then measure them on screen. If you feel they are readable then you adjust your letter heights as needed. 35ft may be far larger than needed when viewing at 50 ft.

I meant The writing will start at 35 feet.Check the attached image again I modified it.
 
okay, its still the same idea though scale things down, make a model or look for some sign that's readable from a distance and pace off the distance and measure the letters height. This is a similar triangle problem.
 

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